Healthcare Breach Tracker
Comprehensive database of data breaches affecting hospitals, clinics, health insurers, and healthcare organizations.
741
Total Breaches
8
2026 Breaches
35.7M
Total Records
318K
2026 Records
Type:
| Organization | Records | Vector | Disclosed |
|---|---|---|---|
| Jackson Hospital and Clinic | 14,485 | third party | Feb 27, 26 |
| WIRX Pharmacy | 20,104 | hacking | Feb 12, 26 |
| Counseling Center of Wayne and Holmes Counties | 83,354 | hacking | Feb 9, 26 |
| Cottage Hospital | 2,156 | hacking | Feb 6, 26 |
| Nova Biomedical Corp. | 10,764 | ransomware | Jan 27, 26 |
| Native American Health Center | — | unknown | Jan 25, 26 |
| Central Maine healthcare | 145,000 | unknown | Jan 15, 26 |
| Avosina Healthcare Solutioins | 42,261 | hacking | Jan 12, 26 |
| Oakland Smile Dental | — | unknown | Dec 27, 25 |
| Horizon Healthcare RCM | — | hacking | Nov 26, 25 |
| Opus Card Systems, Inc. | 330 | hacking | Nov 7, 25 |
| Health & Palliative Services of the Treasure Coast, Inc d/b/a Treasure Coast Hospice | 13,234 | internal system_breach | Oct 24, 25 |
| Medical Associates of Brevard, LLC PO Box 361095 City: Melbourne | 107 | hacking | Oct 10, 25 |
| Fort Wayne Medical Education Program | 29,485 | hacking | Oct 3, 25 |
| Gaylord Specialty Healthcare | — | hacking | Sep 24, 25 |
| VITAS Hospice Services, LLC | — | unknown | Sep 21, 25 |
| New Hampshire Hospital Association | 4 | hacking | Sep 19, 25 |
| Goshen Medical Center | 456,385 | hacking | Sep 17, 25 |
| Wayne Memorial Hospital | 163,440 | hacking | Sep 7, 25 |
| Medical Associates of Brevard, LLC | — | hacking | Sep 5, 25 |
| Keys Pathology Associates, PA | 13,756 | hacking | Sep 2, 25 |
| Anchorage Neighborhood Health Center | — | unknown | Aug 24, 25 |
| Aspire Rural Health System | 138,386 | hacking | Aug 21, 25 |
| Fusion Medical Staffing | 1,150 | inadvertent disclosure | Aug 20, 25 |
| CPAP Medical Supplies and Services Inc. | 90,133 | hacking | Aug 15, 25 |
| Custom Security Systems, Inc. | 3,920 | hacking | Jul 29, 25 |
| McKenzie Memorial Hospital | 54,016 | hacking | Jul 24, 25 |
| Manning, Fulton and Skinner, P.C. on behalf on Durham County Hospital Corporation | 2,150 | hacking | Jul 21, 25 |
| Western Montana Mental Health Center | 86,758 | hacking | Jul 18, 25 |
| The Alcohol & Drug Testing Service | 748,763 | hacking | Jul 17, 25 |
| Petrusha Enterprises, Inc. d/b/a Advanced Security Systems | — | unknown | Jun 30, 25 |
| Mainline Health Systems Inc | 101,104 | hacking | Jun 23, 25 |
| American Driveline Systems, Inc. | — | hacking | Jun 20, 25 |
| McLaren Health Care | 743,131 | hacking | Jun 20, 25 |
| Healthcare Interactive, Inc. | — | unknown | Jun 17, 25 |
| Central Kentucky Radiology | — | hacking | Jun 13, 25 |
| Mental Health Association | 12,633 | hacking | May 30, 25 |
| Next Step Healthcare LLC | 12,115 | hacking | May 30, 25 |
| The Cooper Health System | 57,412 | hacking | May 23, 25 |
| Community Counseling of Bristol County | 45,960 | hacking | May 19, 25 |
| Harbin Clinic, LLC (incident experienced by reporting entity’s vendor, Nationwide Recovery Services, Inc. and did not impact reporting entity’s systems) | 210,140 | hacking | May 16, 25 |
| Hunter Health Clinic | 31,778 | hacking | May 15, 25 |
| Health Care For All | 60 | unknown | May 9, 25 |
| Drug and Alcohol Treatment Services, Inc. | 22,215 | hacking | May 2, 25 |
| Massachusetts Association for Mental Health | 61 | hacking | Apr 22, 25 |
| Behavioral Health Resources | 50,083 | hacking | Apr 17, 25 |
| Hamilton Health Care System, Inc. d/b/a Vitruvian Health | 88,848 | hacking | Apr 15, 25 |
| Medical Express Ambulance Service | 118,418 | hacking | Apr 14, 25 |
| Omni Healthcare Financial Holdings | 16,701 | hacking | Apr 9, 25 |
| Community Dental Care, Inc. | 135,770 | hacking | Apr 1, 25 |
| Delta Dental of Virginia | — | unknown | Mar 21, 25 |
| Dove Healthcare | 16,255 | hacking | Mar 18, 25 |
| Cardo Systems, Inc. | 32 | hacking | Mar 14, 25 |
| Vibra Hospital of Sacramento, LLC | — | unknown | Mar 12, 25 |
| Palo Verde Hospital | — | unknown | Mar 3, 25 |
| 180 Medical | 837 | inadvertent disclosure | Feb 28, 25 |
| Aya Healthcare, Inc. | 3,187 | unknown | Feb 27, 25 |
| Tiger Aesthetics Medical, LLC | 368 | unknown | Feb 26, 25 |
| Absolute Dental Group, LLC | — | unknown | Feb 19, 25 |
| Santa Rosa Community Health Centers | — | unknown | Feb 9, 25 |
| Memorial Hospital and Manor | 120,085 | hacking | Feb 8, 25 |
| Beverly Hills Oncology Medical Group | — | unknown | Feb 7, 25 |
| Hospital Sisters Health System ("HSHS") | 882,782 | hacking | Feb 6, 25 |
| Pacific Imaging Management, LLC dba Radiology Associates of San Luis Obispo | — | unknown | Feb 3, 25 |
| Moses-Weitzman Health System, Inc. | 3,766 | hacking | Jan 30, 25 |
| American Consumer Credit Counseling, Inc. (“ACCC”) | — | unknown | Jan 29, 25 |
| Sharp HealthCare | — | unknown | Jan 27, 25 |
| Sharp Community Medical Group (SCMG) | — | unknown | Jan 27, 25 |
| Brown & Toland Physicians | — | unknown | Jan 27, 25 |
| SimonMed Imaging | — | unknown | Jan 21, 25 |
| Sonrisas Dental Health | — | unknown | Jan 20, 25 |
| Northwest Radiologists and Mt. Baker Imaging | — | unknown | Jan 20, 25 |
| Massachusetts Medical Society (“MMS”) | 246 | hacking | Dec 26, 24 |
| Premier Healthcare Holdings inc. | 5,576 | hacking | Dec 20, 24 |
| Richmond University Medical Center | — | hacking | Dec 19, 24 |
| Memorial Radiation Oncology Medical Group | — | unknown | Dec 13, 24 |
| Mojave Radiation Oncology Medical Group | — | unknown | Dec 13, 24 |
| Orange County Radiation Oncology Medical Group | — | unknown | Dec 13, 24 |
| Synergy Radiation Oncology Medical Group | — | unknown | Dec 13, 24 |
| Anna Jaques Hospital | 316,342 | hacking | Dec 5, 24 |
| Watsonville Community Hospital | — | unknown | Nov 25, 24 |
| Superior Air-Ground Ambulance Service, Inc. | — | hacking | Nov 22, 24 |
| Harmac Medical Products Inc. | 4,679 | hacking | Nov 15, 24 |
| La Clinica de La Raza, Inc. | — | unknown | Nov 4, 24 |
| Friends of Family Health Center | — | unknown | Nov 1, 24 |
| CE-Edinger Medical Group BA - TriZetto TPS | — | unknown | Nov 1, 24 |
| Mission Neighborhood Health Center | — | unknown | Nov 1, 24 |
| Open Door Community Health Centers | — | unknown | Nov 1, 24 |
| Harmony Health Medical Clinic and Family Resource Center | — | unknown | Nov 1, 24 |
| Asian and Pacific Islander Wellness Center, Inc. dba San Francisco Community Health Center | — | unknown | Nov 1, 24 |
| LifeLong Medical Care | — | unknown | Nov 1, 24 |
| SysInformation Healthcare Services, Inc. | — | hacking | Oct 29, 24 |
| Quest Diagnostics, Incorporated | 1,062 | inadvertent disclosure | Oct 25, 24 |
| Acadia Pharmaceuticals Inc. | — | unknown | Oct 24, 24 |
| Community Dental | 1,461 | hacking | Oct 22, 24 |
| Pacific Pulmonary Medical Group | — | unknown | Oct 21, 24 |
| Clay Platte Family Medicine, Summit Family and Sports Medicine Clinic, Cobblestone Family Medicine Clinic, and Barry Pointe Family Medicine Clinic (“the Clinics”) | 53,916 | hacking | Oct 18, 24 |
| Community Health Center, Inc. | — | unknown | Oct 14, 24 |
| Laboratory Services Cooperative | — | unknown | Oct 8, 24 |
| Newport Harbor Pathology Medical Group, Inc. d/b/a Orange County Medical Group Pathology d/b/a Mission Laguna Pathology Medical Group d/b/a Barr Dermatopathology | — | unknown | Oct 8, 24 |
| Management Data Systems International, Inc. | 643 | hacking | Oct 3, 24 |
| Setra Systems, Inc. | 1,919 | hacking | Oct 1, 24 |
| Medical Center Barbour | 61,014 | hacking | Oct 1, 24 |
| Petaluma Health Center | — | unknown | Oct 1, 24 |
| Apellis Pharmaceuticals, Inc. | 733 | hacking | Sep 30, 24 |
| Healthcare Services Group, Inc. | — | unknown | Sep 27, 24 |
| CF Medical is providing this notification. However the incident was limited to CF Medical’s former vendor’s, Financial Business and Consumer Solutions, Inc.’s (“FBCS”) systems and at no point impacted CF Medical’s systems, network or technology. | 626,396 | hacking | Sep 26, 24 |
| SAG-AFTRA Health Plan | — | unknown | Sep 17, 24 |
| Dignity Health Lassen Medical Clinic | — | unknown | Sep 17, 24 |
| Electronics For Imaging, Inc. | — | unknown | Sep 17, 24 |
| VectraRx LLC | — | unknown | Sep 12, 24 |
| Greater Cincinnati Behavioral Health Services | 62,036 | hacking | Sep 11, 24 |
| Carespring Health Care Management LLC | 76,719 | hacking | Sep 9, 24 |
| Hanon Systems USA, LLC | 1,205 | hacking | Sep 4, 24 |
| Weiser Memorial Hospital | — | unknown | Sep 4, 24 |
| MiCare Health Center | — | — | Sep 3, 24 |
| Sunflower Medical Group, P.A. | — | unknown | Sep 2, 24 |
| Birch Medical LLC | — | unknown | Sep 1, 24 |
| Albany College of Pharmacy and Health Sciences | — | unknown | Aug 31, 24 |
| PG Dental d/b/a Aire Dental Arts | 10,200 | hacking | Aug 28, 24 |
| College Hospital Costa Mesa | — | unknown | Aug 14, 24 |
| Wilmington Community Clinic | — | unknown | Aug 13, 24 |
| Hamel Cranial Chiropractic & Wellness INC. | — | — | Aug 4, 24 |
| Basement Systems, Inc. | 1,126 | hacking | Aug 2, 24 |
| Kaiser Foundation Hospitals | — | — | Aug 2, 24 |
| Eye Care of Maine, PA | 245 | hacking | Aug 1, 24 |
| Accountable Healthcare Staffing | 833 | hacking | Jul 31, 24 |
| Baim Institute for Clinical Research | 70 | hacking | Jul 31, 24 |
| Bayhealth Medical Center | — | unknown | Jul 27, 24 |
| Oxford County Mental Health Services | 1 | hacking | Jul 19, 24 |
| ADD Systems | 332 | hacking | Jul 19, 24 |
| Freudenberg Medical, LLC | 4,415 | hacking | Jul 16, 24 |
| Diligent Delivery Systems | — | — | Jul 8, 24 |
| Gryphon Healthcare, LLC | — | — | Jul 6, 24 |
| Select Medical Holdings Corporation | — | unknown | Jul 5, 24 |
| Florida Community Health Centers | 296,635 | hacking | Jul 1, 24 |
| Counseling Associates of New London, PLLC | 102 | unknown | Jun 27, 24 |
| The Mount Kisco Surgery Center LLC d/b/a The Ambulatory Surgery Center of Westchester | 21,073 | hacking | Jun 26, 24 |
| Altoona Logan Township Mobile Medical Emergency Department Authority | 6,169 | hacking | Jun 21, 24 |
| Acadian Ambulance Service, Inc. | — | — | Jun 19, 24 |
| Highland Health Systems | 83,543 | hacking | Jun 13, 24 |
| Family Health Center | 34,926 | hacking | Jun 5, 24 |
| LOS ANGELES COUNTY DEPARTMENT OF MENTAL HEALTH | — | — | May 27, 24 |
| Delta County Memorial Hospital District | — | unknown | May 27, 24 |
| Newton Centre Dental | 2,550 | hacking | May 24, 24 |
| A&A Services d/b/a Sav-Rx | 2,812,336 | hacking | May 24, 24 |
| The University of Chicago Medical Center | 10,332 | hacking | May 24, 24 |
| Best Health Physical Therapy LLC | 3,764 | ransomware | May 23, 24 |
| Victoria Eye Center/Victoria Surgery Center/Victoria Vision Center | 80,122 | hacking | May 21, 24 |
| Aizer Health; F/K/A Ezras Choilim Health Center, Inc. | 10,950 | hacking | May 8, 24 |
| Worldwide Clinical Trials Holdings, Inc. | — | unknown | May 8, 24 |
| Arch Health Partners, Inc. d/b/a Palomar Health Medical Group | — | unknown | May 5, 24 |
| Community Clinic of Maui, Inc. dba Malama I Ke Ola Health Center | — | — | May 4, 24 |
| Directive Communication Systems Inc. | 1,546 | insider | May 3, 24 |
| Summit Pathology, a Colorado general partnership and Summit Pathology Laboratories, Inc. a Colorado corporation | — | — | Apr 26, 24 |
| Rensselaer Polytechnic Institute / Educational Computer Systems, Inc. (à �â � �Å �ECSIà �â � � �) | 1 | hacking | Apr 23, 24 |
| Blackstone Valley Community Health Center | 34,416 | hacking | Apr 19, 24 |
| Allcare medical Management, Inc. | — | — | Apr 16, 24 |
| Goddard Systems, LLC | 2,041 | hacking | Apr 12, 24 |
| Radiology Associates of Richmond, Inc. | — | unknown | Apr 2, 24 |
| Wyndemere Senior Care LLC | 6,846 | hacking | Mar 28, 24 |
| Saco River Medical Group | 64 | unknown | Mar 26, 24 |
| Pembina County Memorial Hospital | 23,451 | hacking | Mar 25, 24 |
| Medical Board of California | — | — | Mar 22, 24 |
| St. Mary's Healthcare System for Children, Inc. | 5,650 | hacking | Mar 20, 24 |
| Systems Application & Technologies Inc. | — | — | Mar 20, 24 |
| Sycamore Rehabilitation Services, Inc. | 3,414 | phishing | Mar 18, 24 |
| ALN Medical Management, LLC | — | unknown | Mar 18, 24 |
| Spaulding Clinical Research, LLC | 884 | hacking | Mar 1, 24 |
| Allergy Medical Group of the North Area, Inc. | — | — | Feb 29, 24 |
| Calibrated Healthcare, LLC, on behalf of its customers' health plans | — | — | Feb 25, 24 |
| Calibrated Healthcare, LLC, on behalf of its covered entity clients | — | — | Feb 25, 24 |
| Calibrated Healthcare, LLC | — | unknown | Feb 25, 24 |
| Washington County Hospital and Nursing Home | 31,125 | hacking | Feb 23, 24 |
| Marathon Pharmaceuticals, LLC/PTC Therapeutics, Inc. | — | — | Feb 21, 24 |
| Novartis Pharmaceuticals Corporation | — | — | Feb 21, 24 |
| Regeneron Pharmaceuticals, Inc. | — | — | Feb 21, 24 |
| Dendreon Pharmaceuticals LLC | — | — | Feb 21, 24 |
| Endo Pharmaceuticals Inc. | — | — | Feb 21, 24 |
| Takeda Pharmaceuticals U.S.A., Inc. | — | — | Feb 21, 24 |
| Rayner Surgical Inc. | — | — | Feb 21, 24 |
| Otsuka America Pharmaceutical, Inc. | — | — | Feb 21, 24 |
| North Hill Communities, Inc., North Hill Home Health Care, Inc., North Hill Needham, Inc., Connected for Life, Inc., and the North Hill Employee Dental Plan (collectively, à �â � �Å �North Hillà �â � � �), | 4,798 | hacking | Feb 15, 24 |
| Department of State Hospitals (DSH) | — | — | Feb 15, 24 |
| Change Healthcare Inc. | — | — | Feb 12, 24 |
| Tri-City Healthcare District | — | — | Feb 11, 24 |
| Science Systems and Applications, Inc. | 1,051 | hacking | Feb 9, 24 |
| Software Systems, Inc. | — | hacking | Feb 7, 24 |
| City of Clemson South Carolina | 21,056 | hacking | Feb 7, 24 |
| Amergis Healthcare Staffing, Inc. | — | unknown | Feb 6, 24 |
| Pomona Community Health Center dba ParkTree Community Health Center | — | — | Feb 1, 24 |
| National Board of Osteopathic Medical Examiners | 4,310 | hacking | Jan 31, 24 |
| Signature Healthcare Services LLC | — | — | Jan 27, 24 |
| Ann & Robert H. Lurie Children’s Hospital Of Chicago | — | — | Jan 26, 24 |
| Dental Health Services | — | — | Jan 25, 24 |
| Columbus Regional Healthcare System | 132,887 | hacking | Jan 19, 24 |
| Bakersfield Rehabilitation Hospital | — | — | Jan 16, 24 |
| Rehabilitation Hospital of Southern Califonia | — | — | Jan 16, 24 |
| Sacramento Rehabilitation Hospital | — | — | Jan 16, 24 |
| NorthBay Healthcare Corporation | — | unknown | Jan 11, 24 |
| CellNetix Pathology and Laboratories | 1 | hacking | Jan 10, 24 |
| UC San Diego Health Hillcrest - Hillcrest Medical Center | — | — | Jan 9, 24 |
| Orsini Pharmaceutical Services | — | — | Jan 8, 24 |
| Delta Dental of California and its affiliates (Updated) | 6,928,932 | hacking | Dec 29, 23 |
| Direct Radiology, PLLC | 147 | hacking | Dec 27, 23 |
| La Red Health Center | 35,602 | hacking | Dec 20, 23 |
| Sharp Health Plan | — | — | Dec 19, 23 |
| Cornerstone Healthcare Group Management Services LLC | — | — | Dec 19, 23 |
| Harrisburg Medical Center (à �â � �Å �HMCà �â � � �) | 147,826 | hacking | Dec 12, 23 |
| Alliance Laundry Systems LLC | — | — | Dec 11, 23 |
| Hi-School Pharmacy | 17,676 | hacking | Dec 5, 23 |
| Aetna Life Insurance Company - Amended/Updated | 310,019 | hacking | Dec 1, 23 |
| Supplemental Reporting- Robeson Health Care Corporation ("RHCC") | 62,627 | hacking | Nov 26, 23 |
| Idaho National Laboratory operated by Battelle Energy Alliance, LLC | — | — | Nov 19, 23 |
| Rancho Family Medical Group, Inc. | — | — | Nov 19, 23 |
| the group health plans of Stanford Health Care, of Stanford Health Care, Lucile Packard Children's Hospital Stanford, Stanford Health Care Tri-Valley, Stanford Medicine Partners, and Packard Children's Health Alliance | 1,648,848 | hacking | Nov 18, 23 |
| Wyoming County Community Health System | 24,016 | hacking | Nov 16, 23 |
| McAlester Regional Health Center | 37,731 | hacking | Nov 15, 23 |
| Medical Management Resource Group, L.L.C., d.b.a. American Vision Partners | — | — | Nov 14, 23 |
| St. Bernards Healthcare, Inc. | 89,556 | hacking | Nov 13, 23 |
| Kaiser Foundation Hospitals, Northern California and The Permanente Medical Group, Inc. | — | — | Nov 10, 23 |
| Fresno Surgical Hospital | — | — | Nov 4, 23 |
| Dameron Hospital | — | unknown | Nov 4, 23 |
| Mulkay Cardiology Consultants at Holy Name Medical Center, P.C. (à �â � �Å �Mulkayà �â � � �) | 79,582 | hacking | Nov 3, 23 |
| PHL Variable Insurance Company in Rehabilitation | — | — | Nov 2, 23 |
| Deer Oaks- The Behavioral Health Solution | 171,871 | ransomware | Oct 31, 23 |
| Infosys McCamish Systems LLC | — | unknown | Oct 29, 23 |
| Los Angeles County Department of Mental Health | — | — | Oct 17, 23 |
| Andromeda Systems, Inc. | 2,670 | hacking | Oct 13, 23 |
| A&A Services d/b/a Sav-Rx | — | — | Oct 8, 23 |
| Community First Medical Center | 216,047 | hacking | Sep 26, 23 |
| The Harris Center for Mental Health and IDD ("The Harris Center") | 599,367 | hacking | Sep 25, 23 |
| Mount Desert Island Hospital, Inc. | 32,661 | hacking | Sep 19, 23 |
| Wahl, Willemse & Wilson LLP | 4,406 | phishing | Sep 18, 23 |
| Bloom Health Centers | 1,654 | unknown | Sep 11, 23 |
| Acadia Health, LLC d/b/a Just Kids Dental | 129,623 | hacking | Sep 4, 23 |
| Systems East, Inc. | — | — | Aug 25, 23 |
| California Correctional Health Care Services | — | unknown | Aug 21, 23 |
| Singing River Health System and its wholly owned subsidiary, Singing River Gulfport | — | — | Aug 19, 23 |
| Hapy Bear Surgery Center | — | — | Aug 18, 23 |
| Morris Hospital & Healthcare Centers | 248,943 | hacking | Aug 17, 23 |
| Hospital Sisters Health Systems ("HSHS") | — | unknown | Aug 16, 23 |
| VNS Health Health Plans (à �â � �Å �VNSà �â � � �) | 103,775 | hacking | Aug 14, 23 |
| Sightpath Medical, LLC | 813 | hacking | Aug 14, 23 |
| BrightSpring Healthcare Services, Inc. | 535,203 | hacking | Aug 11, 23 |
| Cummins Behavioral Health Systems, Inc. | 157,688 | hacking | Aug 11, 23 |
| Tift Regional Health System, Inc. | 180,142 | hacking | Aug 11, 23 |
| Colorado Department of Health Care Policy & Financing | 4,091,794 | unknown | Aug 11, 23 |
| Yakima Valley Radiology PC | — | — | Aug 11, 23 |
| EMS Management and Consultants Inc. | 223,598 | hacking | Aug 10, 23 |
| ZOLL Medical Corporation | — | — | Aug 2, 23 |
| Cheyenne Radiology Group & MRI, P.C. | 10,420 | hacking | Aug 1, 23 |
| Synergy Healthcare Services | 58,034 | hacking | Jul 31, 23 |
| Prospect Medical Holdings, Inc. | — | — | Jul 31, 23 |
| Humana Inc | — | — | Jul 31, 23 |
| The Johns Hopkins University, The Johns Hopkins Health System Corporation, and the Kennedy Krieger Institute | 363,885 | hacking | Jul 25, 23 |
| Wahl, Willemse & Wilson LLP | — | — | Jul 24, 23 |
| Peachtree Orthopaedic Clinic, P.A. | 34,691 | hacking | Jul 18, 23 |
| Accreditation Commission for Education in Nursing, Inc. | 11,980 | hacking | Jul 12, 23 |
| Gary Motykie, M.D., a Medical Corporation | 3,461 | unknown | Jul 12, 23 |
| Western Washington Medical Group | — | — | Jul 7, 23 |
| Risas Dental & Braces | — | — | Jun 30, 23 |
| HCA Healthcare | — | — | Jun 29, 23 |
| Precision Imaging Center | 31,010 | hacking | Jun 27, 23 |
| New Horizons Medical, Inc. | 12,317 | hacking | Jun 16, 23 |
| CDC Dental Management, Co., LLC dba Kids Care Dental & Orthodontics | — | — | Jun 15, 23 |
| Pomona Valley Hospital Medical Center | — | — | Jun 10, 23 |
| Valley Power Systems, Inc. | — | — | Jun 9, 23 |
| SysInformation Healthcare Services, LLC d/b/a EqualizeRCM and 1st Credentialing | — | — | Jun 3, 23 |
| Kaiser Foundation Health Plan, Inc. | — | — | Jun 1, 23 |
| The Johns Hopkins University and The Johns Hopkins Health System Corporation | — | — | May 29, 23 |
| Aetna Life Insurance Company | — | — | May 29, 23 |
| Sutter Senior Care | — | — | May 28, 23 |
| Medical Eye Services, Inc. | — | — | May 28, 23 |
| Colorado Department of Health Care Policy & Financing | — | — | May 28, 23 |
| UnitedHealthcare Student Resources | — | — | May 27, 23 |
| Delta Dental of California and affiliates | — | — | May 27, 23 |
| Life Generations Healthcare LLC ("LGH") | — | — | May 24, 23 |
| edgeMED Healthcare, LLC | — | — | May 20, 23 |
| Bay Shore Brightwaters Rescue Ambulance, Inc. | 1,390 | hacking | May 16, 23 |
| Uintah Basin Healthcare | 103,974 | hacking | May 12, 23 |
| Dr. Gary Motykie, M.D., a Medical Corporation | — | — | May 9, 23 |
| Norton Healthcare, Inc. | — | — | May 7, 23 |
| McPherson Hospital, Inc. | 19,020 | hacking | May 4, 23 |
| Deanco Healthcare LLC dba Mission Community Hospital | — | — | May 1, 23 |
| Desert Physicians Management | — | — | Apr 23, 23 |
| Taro Pharmaceuticals U.S.A., Inc. | 1,734 | hacking | Apr 21, 23 |
| Robeson Health Care Corporation ("RHCC") | 15,045 | hacking | Apr 21, 23 |
| Oak Valley Hospital District | — | — | Apr 21, 23 |
| One Brooklyn Health System | 235,251 | hacking | Apr 20, 23 |
| RoadSafe Traffic Systems, Inc. | — | — | Apr 10, 23 |
| Morris Hospital & Healthcare Centers | — | — | Apr 4, 23 |
| Financial Asset Management Systems ("FAMS") | — | — | Mar 31, 23 |
| NextGen Healthcare, Inc. | — | — | Mar 29, 23 |
| Drug Free Workplaces USA, LLC | — | — | Mar 29, 23 |
| Harvard Pilgrim Health Care | — | — | Mar 28, 23 |
| Harvard Pilgrim Health Care | — | unknown | Mar 28, 23 |
| Atlantic General Hospital | 30,704 | hacking | Mar 24, 23 |
| Texas Medical Liability Trust | 2 | hacking | Mar 22, 23 |
| Hiawatha Harris MD, Inc. dba Pathways to Wellness Medication Clinics | — | — | Mar 21, 23 |
| Bone & Joint Clinic, S.C. | 105,094 | hacking | Mar 20, 23 |
| Fertility Specialists Medical Group | — | — | Mar 19, 23 |
| Richard T. Miller, DMD, PC, dba Great Neck/Mid Island Dental | 22,933 | hacking | Mar 17, 23 |
| Alatus Aerosystems LLC | — | — | Mar 15, 23 |
| NorthStar Emergency Medical Services | 82,450 | hacking | Mar 14, 23 |
| Southwest Behavioral Health Center | — | — | Mar 13, 23 |
| Health Plan Intermediaries Holdings | — | — | Mar 10, 23 |
| Shasta Community Health Center (“Shasta”) | — | — | Mar 9, 23 |
| Aloha Nursing Rehab Centre | 20,576 | hacking | Mar 4, 23 |
| Dental & Health Management Solutions | 3,205 | hacking | Mar 2, 23 |
| Great Expressions Dental Centers | — | — | Feb 17, 23 |
| Transformative Healthcare | — | — | Feb 17, 23 |
| Trident Maritime Systems LLC | — | unknown | Feb 1, 23 |
| Santa Clara Family Health Plan | — | — | Jan 30, 23 |
| California Physicians' Services d/b/a Blue Shield of California | — | — | Jan 28, 23 |
| Howard Memorial Hospital | 54,430 | hacking | Jan 27, 23 |
| Health Plan of San Mateo | — | — | Jan 17, 23 |
| Department of Health Care Services | — | — | Jan 9, 23 |
| Retreat Behavioral Health | 23,620 | hacking | Dec 30, 22 |
| Fitzgibbon Hospital | 112,072 | hacking | Dec 30, 22 |
| California Physicians' Services d/b/a Blue Shield of California (BSC) | 3,411 | insider | Dec 29, 22 |
| Legacy Operating Company d/b/a Legacy Hospice | 21,202 | hacking | Dec 22, 22 |
| Nonstop Administration and Insurance Services, Inc. (“Nonstop”) on behalf of LifeLong Medical Care | — | — | Dec 22, 22 |
| MultiCare Health System, Inc. | 23,712 | hacking | Dec 12, 22 |
| THINK Surgical, Inc | 215 | hacking | Dec 8, 22 |
| Rock Energy Systems | 593 | hacking | Dec 2, 22 |
| BAE Systems, Inc. | 2,831 | unknown | Dec 2, 22 |
| Regal Medical Group, Inc. | — | — | Dec 1, 22 |
| UnitedHealthcare | — | — | Dec 1, 22 |
| Orion Systems Integrators LLC | 1,201 | hacking | Nov 30, 22 |
| Laser Aiming Systems Corporation | 1,084 | hacking | Nov 22, 22 |
| Hope Health Systems Inc. | 10,887 | hacking | Nov 21, 22 |
| Gateway Rehabilitation Center | 130,000 | hacking | Nov 18, 22 |
| Hayward Sisters Hospital d/b/a St. Rose Hospital | — | — | Nov 18, 22 |
| General Health System, Inc. | 20,167 | hacking | Nov 4, 22 |
| San Gorgonio Memorial Hospital | — | — | Oct 29, 22 |
| MDLIVE Medical Group, (DE) P.A. | 7,439 | inadvertent disclosure | Oct 20, 22 |
| Country Doctor Community Health Clinic | 22,727 | hacking | Oct 19, 22 |
| MedStar Mobile Healthcare | — | — | Oct 19, 22 |
| UnitedHealthcare "UHC" | 32,064 | hacking | Oct 10, 22 |
| The Elizabeth Hospice | — | — | Oct 2, 22 |
| Texas Medical Liability Trust on behalf of itself and its affiliates, Texas Medical Insurance Company, Physicians Insurance Company, and Lone Star Alliance, Inc., a Risk Retention Group (collectively “TMLT”). | — | — | Oct 2, 22 |
| AMH Health, LLC and AMH Health Plans of Mail | 13,406 | hacking | Sep 28, 22 |
| Northern Data Systems | 506 | hacking | Sep 27, 22 |
| Elbit Systems of America, LLC | 369 | hacking | Sep 25, 22 |
| Dyersburg Family Walk-In Clinic (d/b/a Reelfoot Family Walk-In Clinic) | 58,562 | hacking | Sep 23, 22 |
| Physician's Business Office | 196,573 | hacking | Sep 23, 22 |
| Benefit Administrative Systems, LLC | — | — | Sep 17, 22 |
| SERV Behavioral Health Systems, Inc. | 8,110 | hacking | Sep 9, 22 |
| SCA Pharmaceuticals Inc. | 1,900 | hacking | Aug 29, 22 |
| Restorative Arts Physical Therapy, Inc. d/b/a Core Conditioning | — | — | Aug 29, 22 |
| Gemstone Publishing, Inc. ("Gemstone") | 394 | hacking | Aug 25, 22 |
| United States and Canadian Academy of Pathology | 1,246 | hacking | Aug 25, 22 |
| Gifted Healthcare | 13,770 | hacking | Aug 24, 22 |
| Merritt Healthcare Advisors | — | — | Jul 30, 22 |
| Community Surgical Supply Inc. | 66,115 | hacking | Jul 29, 22 |
| Lifeline Systems Company | — | — | Jul 27, 22 |
| Northern California Fertility Medical Center | — | — | Jul 24, 22 |
| Blue Cross and Blue Shield of Massachusetts, Inc. | 4,855 | unknown | Jul 20, 22 |
| Medical Review Insititue of America | 170,014 | hacking | Jul 13, 22 |
| Resource Anesthesiology Associates of CA A Medical Corporation | — | — | Jul 9, 22 |
| Associated Eye Care | 1 | hacking | Jul 8, 22 |
| Pro-Tem, Inc. dba PTI Systems | — | — | Jul 7, 22 |
| Premere Rehab, LLC / Signature Healthcare at Home / Avamere Health Services, LLC | 45,381 | hacking | Jul 6, 22 |
| Southwest Health Center | 46,142 | hacking | Jul 5, 22 |
| Independent Living Systems, LLC | — | — | Jun 30, 22 |
| Proliant Settlement Systems, LLC | 12,697 | hacking | Jun 26, 22 |
| Peter Brasseler Holdings, LLC; Brasseler U.S.A. Dental, LLC; Brasseler U.S.A. Medical, LLC | — | — | Jun 24, 22 |
| NORTH CAROLINA BOARD OF PHYSICAL THERAPY EXAMINERS | — | — | Jun 3, 22 |
| IMX Medical Management Services | — | — | Jun 1, 22 |
| University of Chicago Medical Center | 2,568 | hacking | May 27, 22 |
| Schneck Medical Center | 92,311 | hacking | May 26, 22 |
| California Department of Corrections & Rehabilitation - California Correctional Health Care Services | — | — | May 26, 22 |
| Steel River Systems, LLC | — | — | May 25, 22 |
| Val Verde Regional Medical Center ("VVRMC") | 86,562 | hacking | May 24, 22 |
| Allwell Behavioral Health Services | 30,952 | hacking | May 23, 22 |
| Kaiser Foundation Health Plan, Inc., Southern California | — | — | May 20, 22 |
| m3 accounting systems | 1,789 | hacking | May 19, 22 |
| East Tennessee Children's Hospital Association Inc. | 422,531 | hacking | May 19, 22 |
| Behavioral Health Partners of Metrowest | 11,288 | hacking | May 11, 22 |
| Choice Health Insurance, LLC | — | — | May 7, 22 |
| Humana | — | — | May 7, 22 |
| Anthem Blue Cross | — | — | May 7, 22 |
| Jackson County Hospital District | 98,746 | hacking | May 6, 22 |
| San Diego American Indian Health Center | — | — | May 5, 22 |
| Community Council of Nashua d/b/a Greater Nashua Mental Health (à �â � �Å �GNMHà �â � � �) | 1,085 | hacking | May 4, 22 |
| CCA Health Plans of California, Inc. d/b/a CCA Health California | — | — | May 4, 22 |
| Valley View Hospital Association | 21,708 | internal system_breach | Apr 28, 22 |
| Aetna | — | — | Apr 28, 22 |
| Allied Eye Physicians & Surgeons, Inc. | 20,651 | hacking | Apr 27, 22 |
| Sterling Valley Systems dba Inntopia | 17,952 | hacking | Apr 21, 22 |
| Burkhart Dental Supply Co., Inc. | 1,108 | hacking | Apr 20, 22 |
| Medscan Laboratory, Inc. ("Adaptive Health Integrations") | 510,574 | hacking | Apr 18, 22 |
| Fairfield County Implants & Periodontics | 10,502 | hacking | Apr 15, 22 |
| AllCare Plus Pharmacy, Inc. ("AllCare") | — | — | Apr 14, 22 |
| Bucktail Medical Center | 1,568 | hacking | Apr 13, 22 |
| Simply Dental Management, Inc. | 48 | unknown | Apr 5, 22 |
| Physician's Business Office | — | — | Apr 5, 22 |
| Baptist Medical Center | — | — | Mar 31, 22 |
| ARx Patient Solutions | — | — | Mar 30, 22 |
| Capital Region Medical Center | 17,578 | hacking | Mar 25, 22 |
| South Shore Hospital Corporation | 1 | hacking | Mar 24, 22 |
| Advanced Medical Practice Management (on behalf of the entities identified in Exhibit A to Exhibit 1) | 56,427 | hacking | Mar 23, 22 |
| Grandison Management, Inc. /Towne Home Care, LLC | 100,488 | hacking | Mar 22, 22 |
| Harney District Hospital | 1 | hacking | Mar 21, 22 |
| Norwood Clinic | 228,103 | hacking | Mar 8, 22 |
| Shields Health Care Group, Inc. | — | — | Mar 7, 22 |
| Duncan Regional Hospital, Inc. | 92,398 | hacking | Mar 4, 22 |
| Jersey City Medical Center | 1,130 | hacking | Mar 2, 22 |
| BluePearl Specialty + Emergency Pet Hospital | 8,445 | inadvertent disclosure | Mar 1, 22 |
| FPS Medical Center | — | — | Feb 28, 22 |
| Covenant Care California, LLC, on behalf of relevant home health agency | — | — | Feb 24, 22 |
| Alliance Physical Therapy Group, LLC | 14,970 | hacking | Feb 23, 22 |
| Sutter North Surgery Center | — | — | Feb 9, 22 |
| Cross Timbers Health Clinics d/b/a AccelHealth | 48,126 | hacking | Feb 7, 22 |
| Injured Workers Pharmacy | 75,771 | hacking | Feb 3, 22 |
| St. Lucie County's Drug Screening Lab | 14,528 | internal system_breach | Jan 21, 22 |
| Millennium Eye Care LLC | 6,050 | hacking | Jan 13, 22 |
| Paul J. Emsurak, CPA | 194 | hacking | Jan 13, 22 |
| Marietta Area Health Care Inc. dba Memorial Health System | 216,478 | hacking | Jan 12, 22 |
| National Association of Community Health Centers (NACHC) | 935 | hacking | Jan 7, 22 |
| Jefferson Surgical Clinic | 174,769 | hacking | Jan 6, 22 |
| CVS Pharmacy | — | — | Jan 6, 22 |
| Alliance Physical Therapy Partners | — | — | Dec 23, 21 |
| California Department of Corrections and Rehabilitation | — | — | Dec 21, 21 |
| Radiology Ltd. | — | — | Dec 17, 21 |
| Monongalia Health System, Inc. | — | — | Dec 8, 21 |
| Quantum Imaging and Therapeutics Associates, Inc. | 741 | hacking | Dec 7, 21 |
| Wolfe Clinic, P.C. | — | — | Dec 4, 21 |
| Shoring Engineers, Inc., Structural Shotcrete Systems, Inc. and Santa Fe Building and Equipment | — | — | Dec 2, 21 |
| Logan Health Medical Center | — | — | Nov 18, 21 |
| University Hospital | 9,329 | insider | Nov 3, 21 |
| Baywood Medical Associates, PLC dba Desert Pain Institute | 45,262 | hacking | Nov 3, 21 |
| Compton Eye Care Optometry | — | — | Nov 3, 21 |
| Mowery Clinic | — | hacking | Nov 2, 21 |
| Medical Review Institute of America | — | — | Nov 2, 21 |
| National Imaging Associates, Inc. | — | — | Nov 1, 21 |
| WellDyneRX, LLC | — | — | Oct 30, 21 |
| Quest Diagnostics | — | — | Oct 29, 21 |
| University Medical Center of Southern Nevada | 1,300,000 | hacking | Oct 26, 21 |
| Spectrum Eye Physicians | — | — | Oct 26, 21 |
| BioPlus Specialty Pharmacy Services, LLC | — | — | Oct 25, 21 |
| Alicia Surgery Center | — | — | Oct 24, 21 |
| North Broward Hospital District d/b/a Broward Health | — | — | Oct 15, 21 |
| The Public School and Education Employee Retirement Systems of Missouri | 349,246 | hacking | Oct 14, 21 |
| Community Medical Centers, Inc. | — | — | Oct 10, 21 |
| Sterling Valley Systems d/b/a Inntopia | — | — | Oct 9, 21 |
| Premier Patient Health Care | 37,636 | insider | Oct 8, 21 |
| The Menninger Clinic | 2,076 | hacking | Oct 4, 21 |
| Clinic of North Texas LLP | — | — | Oct 4, 21 |
| Neuro Rehab Associates, Inc. d/b/a Northeast Rehabilitation Hospital Network | — | — | Sep 30, 21 |
| Central Texas Medical Specialists PLLC dba Austin Cancer Centers | 36,503 | hacking | Sep 15, 21 |
| Traffic Solutions Corporation, doing business as Statewide Safety Systems | — | — | Sep 15, 21 |
| Veterans Medical Research Foundation | — | — | Sep 13, 21 |
| The Public School and Education Employees Retirement Systems of Missouri | — | — | Sep 11, 21 |
| Rehabilitation Support Services, Inc. | 23,907 | hacking | Sep 10, 21 |
| HealthReach Community Health Centers | 116,898 | unknown | Sep 9, 21 |
| Utah Imaging Associates, Inc. | — | — | Aug 29, 21 |
| Coro Medical, LLC | 5,483 | hacking | Aug 27, 21 |
| Blue Cross of California | — | — | Aug 25, 21 |
| United Health Centers of the San Joaquin Valley | — | — | Aug 24, 21 |
| Barlow Respiratory Hospital | — | — | Aug 21, 21 |
| Accutech Systems Corporation | — | — | Aug 16, 21 |
| ReproSource Fertility Diagnostics Inc. | — | — | Aug 8, 21 |
| Telephone and Data Systems, Inc. | 99 | hacking | Aug 3, 21 |
| Foundation for Medical Care of Merced County | — | — | Aug 3, 21 |
| JDC Healthcare Management LLC | — | — | Jul 27, 21 |
| Intermountain Healthcare | 28,628 | hacking | Jul 16, 21 |
| Buddhist Tzu Chi Medical Foundation | — | — | Jul 15, 21 |
| DuPage Medical Group, Ltd. | — | — | Jul 12, 21 |
| Vitreo-Retinal Medical Group, Inc. d/b/a Retinal Consultants Medical Group | — | — | Jul 12, 21 |
| Sierra Nevada Primary Care Physicians | — | — | Jul 8, 21 |
| Resource Anesthesiology Association of California, a Medical Corporation | — | — | Jul 8, 21 |
| Coastal Family Health Center | 62,342 | hacking | Jul 7, 21 |
| John Muir Health - Walnut Creek Medical Center | — | — | Jul 1, 21 |
| ACE Surgical Supply Co., Inc. | — | — | Jun 29, 21 |
| Mevion Medical Systems | 730 | hacking | Jun 17, 21 |
| Little Hill Foundation for the Rehabilitation of Alcoholics, Inc. d/b/a Alina Lodge | 2,565 | hacking | Jun 16, 21 |
| Spectrum Pharmaceuticals, Inc. | 397 | hacking | Jun 16, 21 |
| University Medical Center of Southern Nevada ("UMC") | — | — | Jun 14, 21 |
| Healthpointe Medical Group, Inc. | — | — | Jun 9, 21 |
| Blue Cross and Blue Shield of Kansas City | 47,034 | hacking | Jun 2, 21 |
| Sturdy Memorial Hospital | 42,336 | hacking | May 28, 21 |
| HealthcareSource HR, Inc. | 451 | inadvertent disclosure | May 26, 21 |
| DNA Diagnostics Center, Inc. | — | — | May 24, 21 |
| Rehoboth McKinley Christian Health Care Services | 209,280 | hacking | May 19, 21 |
| Bay Alarm Medical, LLC | 3,633 | hacking | May 14, 21 |
| ExaGrid Systems, Inc. | 814 | hacking | May 14, 21 |
| Internal Medicine Associates of Jasper, PC, dba Prestige Medical Group | 34,203 | hacking | May 10, 21 |
| Nationwide Optometry, P.C. | — | — | Apr 20, 21 |
| Trusted Health Plans, Inc. | 211,000 | hacking | Apr 5, 21 |
| Cardiva Medical, Inc. | 637 | hacking | Apr 1, 21 |
| Phase II Systems, d/b/a PARS | — | — | Mar 31, 21 |
| India street clinic | 1 | hacking | Mar 27, 21 |
| Personal Touch Holding Corp., business associate to its direct and indirect subsidiaries Personal Touch Home Care of Greater Portsmouth, Inc., Personal Touch Home Care of S.E. Mass., Inc., Personal-Touch Home Care of N.Y., Inc., Personal Touch Home Care of Baltimore, Inc., Personal Touch Home Care of VA, Inc. and Personal Touch Home à �â � �â � �Aides, Inc. (MA) | 93 | ransomware | Mar 25, 21 |
| K and B Surgical Center, LLC | — | — | Mar 24, 21 |
| MTS Systems Corporation | 2,604 | hacking | Mar 23, 21 |
| PCs Revenue Control Systems | 867,209 | hacking | Mar 18, 21 |
| Cleveland Integrity Systems, Inc. | 11,484 | hacking | Mar 11, 21 |
| Assistcare Home Health Services LLC dba Preferred Home Care of New York/Preferred Gold | 92,283 | hacking | Mar 11, 21 |
| CA Department of State Hospitals | — | — | Mar 11, 21 |
| The New London Hospital Association, Inc. | 34,878 | hacking | Mar 9, 21 |
| Sandhills Medical Foundation, Inc. | 39,602 | hacking | Mar 5, 21 |
| Summit Behavioral Healthcare | 70,822 | unauthorized access | Feb 26, 21 |
| Liberty Healthcare Corporation | 42 | unknown | Feb 22, 21 |
| Northern California Medical Associates, Inc. | — | — | Feb 19, 21 |
| Grand River Medical Group, P.C. | 37,858 | hacking | Feb 12, 21 |
| ATC Healthcare Services, LLC | — | — | Feb 9, 21 |
| Marshall Medical Center | — | — | Feb 6, 21 |
| NEC Networks, LLC d/b/a CaptureRx | — | — | Feb 6, 21 |
| Tiburcio Vasquez Health Center Inc. | — | — | Feb 6, 21 |
| Guidehouse on behalf of Community Memorial Health System located in Ventura, CA | — | — | Jan 20, 21 |
| Montgomery Hospice, Inc. | 1,440 | hacking | Jan 15, 21 |
| Cancer Treatment Centers of America at Midwestern Regional Medical Center | — | — | Jan 12, 21 |
| 20/20 Eye Care Network, Inc. | — | — | Jan 11, 21 |
| Wilmington Surgical Associates, P.A. | 114,834 | hacking | Jan 8, 21 |
| Saint Alphonsus Health System | — | — | Jan 4, 21 |
| Ontario Systems, LLC | 1,247 | phishing | Dec 31, 20 |
| Abacus Data Systems, Inc. | — | — | Dec 28, 20 |
| Brandman Centers for Senior Care | — | — | Dec 28, 20 |
| Professional Business Systems d/b/a Practicefirst Medical Management Solutions and PBS Medcode Corp. | — | — | Dec 25, 20 |
| Radiology Associates of Albuquerque and Advanced Imaging, LLC. | — | — | Dec 22, 20 |
| American Bank Systems | 45,402 | hacking | Dec 16, 20 |
| Apex Systems | 3,626 | hacking | Dec 14, 20 |
| Sea Mar Community Health Centers | — | — | Dec 12, 20 |
| Dental Care Alliance, LLC | 1,004,304 | hacking | Dec 7, 20 |
| Entira Family Clinics | — | — | Dec 4, 20 |
| Southern College of Optometry | 2,500 | hacking | Dec 2, 20 |
| Prominence Health Plan | — | — | Nov 30, 20 |
| Nova Biomedical | 40 | hacking | Nov 25, 20 |
| Neighborhood Healthcare | — | — | Nov 24, 20 |
| American College of Emergency Physicians (à �â � �Å �ACEPà �â � � �) | 1,938 | hacking | Nov 17, 20 |
| SAC Health System | — | — | Nov 15, 20 |
| Donghyun Noh DMD, LLC d/b/a Pristine Dental | 1,428 | hacking | Nov 2, 20 |
| Health Center Partners of Southern California | — | — | Oct 22, 20 |
| Parkview Health System, Inc. ("Parkview") | 20,422 | hacking | Oct 12, 20 |
| Maxim Healthcare Group | — | — | Oct 1, 20 |
| Preferred Care Home Health Services | 2,984 | hacking | Sep 28, 20 |
| Pennington Biomedical Research Foundation | 96 | hacking | Sep 28, 20 |
| GenRx Pharmacy | — | — | Sep 27, 20 |
| Health Plan of San Joaquin (HPSJ) | — | — | Sep 26, 20 |
| The Baton Rouge Clinic, A Medical Corporation | 308,169 | hacking | Sep 17, 20 |
| Wind River Systems, Inc. | — | — | Sep 16, 20 |
| Medical Depot | 6,424 | hacking | Sep 14, 20 |
| Sonoma Valley Healthcare District | — | — | Sep 10, 20 |
| Southern Mono Healthcare District d/b/a Mammoth Hospital | — | — | Sep 5, 20 |
| Einstein Healthcare Network | — | — | Aug 5, 20 |
| University Muslim Medical Association | — | — | Jun 29, 20 |
| Administrative Advantage, LLC obo Remedy Medical Group | — | — | Jun 23, 20 |
| Hoag Clinic | — | — | Jun 5, 20 |
| City Dental | — | — | Jun 1, 20 |
| CPR AED Course LLC dba American Health Care Academy | — | — | Jun 1, 20 |
| Medical Depot, Inc., d/b/a Drive DeVilbiss Healthcare | — | — | May 25, 20 |
| Assured Imaging | — | — | May 19, 20 |
| Enloe Medical Center | — | — | May 14, 20 |
| Valley Presbyterian Hospital | — | — | May 14, 20 |
| Summit Behavioral Healthcare, LLC | — | — | May 12, 20 |
| Amphastar Pharmaceuticals, Inc. | — | — | May 2, 20 |
| Alameda Health System | — | — | Apr 30, 20 |
| Dynasplint Systems, Inc. | — | — | Apr 29, 20 |
| Allergy & Asthma Medical Group of the Bay Area, Inc. | — | — | Apr 27, 20 |
| Salinas Valley Memorial Healthcare System | — | — | Apr 24, 20 |
| Ascend Clinical LLC | — | — | Apr 21, 20 |
| Coalinga Valley Health Clinics, Inc. | — | — | Apr 17, 20 |
| American College of Emergency Physicians ("ACEP") | — | — | Apr 8, 20 |
| American Society for Clinical Pathology | — | — | Mar 30, 20 |
| Hospice by the Bay | — | — | Mar 10, 20 |
| Community Memorial Health System | — | — | Feb 18, 20 |
| Rady Children’s Hospital – San Diego and Rady Children’s Hospital Foundation – San Diego | — | — | Feb 7, 20 |
| International Medical Corps | — | — | Feb 7, 20 |
| MailMyPrescriptions.com Pharmacy Corporation | — | — | Feb 3, 20 |
| Methodist Hospital of Southern California | — | — | Feb 1, 20 |
| University of Minnesota Physicians | — | — | Jan 30, 20 |
| Stockdale Radiology | — | — | Jan 17, 20 |
| Orchard Medical Consulting | — | — | Jan 16, 20 |
| PCS Revenue Control Systems | — | — | Dec 20, 19 |
| Overlake Medical Center & Clinics | — | — | Dec 6, 19 |
| Doctors Medical Center of Modesto | — | — | Dec 1, 19 |
| ACCO Engineered Systems, Inc. | — | — | Nov 20, 19 |
| VEP Healthcare, Inc. | — | — | Nov 15, 19 |
| Healthcare Resource Group, Inc. | — | — | Nov 4, 19 |
| Golden Valley Health Centers | — | — | Oct 25, 19 |
| Good Samaritan Hospital, Inc. | — | — | Oct 22, 19 |
| INTEGRIS Baptist Medical Center, Inc. | — | — | Oct 17, 19 |
| Kaiser Health Plan, Southern California | — | — | Oct 6, 19 |
| American Medical Technologies | — | — | Oct 1, 19 |
| Blue Cross Blue Shield Association | — | — | Sep 28, 19 |
| CA Department of State Hospitals - Coalinga | — | — | Aug 27, 19 |
| VibrantCare Rehabilitation, Inc. | — | — | Aug 20, 19 |
| Aveanna Healthcare | — | — | Jul 9, 19 |
| Hospice of San Joaquin | — | — | Jul 2, 19 |
| Sutter Buttes Imaging Medical Group, Inc. | — | — | Jul 1, 19 |
| Rady Children's Hospital San Diego | — | — | Jun 20, 19 |
| Torrance Memorial Medical Center | — | — | Jun 20, 19 |
| Delta Health Systems | — | — | May 27, 19 |
| Kalisepell Regional Healthcare | — | — | May 24, 19 |
| Presbyterian Healthcare Services | — | — | May 9, 19 |
| Apria Healthcare LLC | — | — | Apr 5, 19 |
| Solara Medical Supplies, LLC | — | — | Apr 2, 19 |
| FlexCare, LLC d/b/a FlexCare Medical Staffing | — | — | Mar 26, 19 |
| St. Vincent Medical Center | — | — | Mar 15, 19 |
| International Rehabilitative Sciences, Inc. dba RS Medical | — | — | Feb 11, 19 |
| Verity Medical Foundation | — | — | Jan 16, 19 |
| Department of Rehabilitation | — | — | Jan 9, 19 |
| Centrelake Medical Group, Inc. | — | — | Jan 9, 19 |
| University of Washington Medical Center (“UWM”) | — | — | Dec 4, 18 |
| Verity Health System | — | — | Nov 27, 18 |
| Citrix Systems, Inc. | — | — | Oct 13, 18 |
| American Medical Response, Inc. | — | — | Sep 24, 18 |
| Atrium Health (formerly Carolinas HealthCare System) | — | — | Sep 22, 18 |
| Blood Systems, Inc. | — | — | Aug 29, 18 |
| Surgerical Specialties of Arroyo Grande, LLC, dba Oak Park Surgery Center | — | — | Aug 8, 18 |
| Laboratory Corporation of America Holdings | — | — | Aug 1, 18 |
| Sunrise Medical Laboratories, Inc. | — | — | Aug 1, 18 |
| Clinical Pathology Laboratories, Inc. | — | — | Aug 1, 18 |
| Laboratory Medicine Consultants, Ltd. | — | — | Aug 1, 18 |
| Western Pathology | — | — | Aug 1, 18 |
| Sierra View Medical Center | — | — | Jul 27, 18 |
| Pharmaca Integrative Pharmacy Inc. | — | — | Jul 19, 18 |
| Envision Healthcare Corporation | — | — | Jul 17, 18 |
| Health Quest Systems, Inc. | — | — | Jul 11, 18 |
| Pharmacy Times Office of Continuing Professional Education ("PTCE") | — | — | Jul 6, 18 |
| BioMarin Pharmaceutical Inc. | — | — | Jun 18, 18 |
| California Physicians' Service d/b/a Blue Shield of California | — | — | May 22, 18 |
| Hunt Regional Medical Center | — | — | May 18, 18 |
| El Centro Regional Medical Center | — | — | May 8, 18 |
| Advocate Sherman Hospital ("Sherman") | — | — | May 8, 18 |
| Roadrunner Transportation Systems, Inc. | — | — | Apr 1, 18 |
| Quality-Care Pharmacy | — | — | Mar 11, 18 |
| Local Initiative Health Authority of Los Angeles County, doing business as L.A. Care Health Plan | — | — | Mar 1, 18 |
| White and Bright Family Dental | — | — | Feb 1, 18 |
| Milligan Chiropractic Group, Inc. d/b/a Del Mar Chiropractic Sports Group | — | — | Jan 31, 18 |
| Muir Medical Group, IPA. Inc. | — | — | Dec 7, 17 |
| Rehabilitation | — | — | Nov 22, 17 |
| Eye Safety Systems, Inc. (ESS) | — | — | Nov 21, 17 |
| Providence Saint John's Health Center | — | — | Nov 20, 17 |
| Children's Hospital Los Angeles | — | — | Nov 6, 17 |
| Dorian Business Systems, LLC | — | — | Nov 3, 17 |
| California Physicians’ Service, d/b/a Blue Shield of California | — | — | Nov 1, 17 |
| Los Angeles County Department of Mental Health (LACDMH) | — | — | Oct 24, 17 |
| Port City Operating Company, doing business as St. Joseph's Medical Center | — | — | Oct 9, 17 |
| Ron's Pharmacy Services | — | — | Oct 3, 17 |
| Kaiser Permanente Health Plan | — | — | Sep 18, 17 |
| Dignity Health - Mercy San Juan Medical Center | — | — | Sep 8, 17 |
| Kaiser Foundation Health Plan | — | — | Aug 9, 17 |
| Pacific Alliance Medical Center | — | — | Jun 14, 17 |
| Occidental College | — | — | Jun 1, 17 |
| Sunshine Behavioral Health Group, LLC | — | — | Mar 1, 17 |
| Orange County Global Medical Center | — | — | Feb 8, 17 |
| Sharp Memorial Hospital | — | — | Feb 6, 17 |
| Tarleton Medical | — | — | Dec 14, 16 |
| Synergy Specialists Medical Group, Inc. | — | — | Dec 5, 16 |
| ASI Computer Systems | — | — | Dec 1, 16 |
| Hand & Upper Extremity Centers dba Hand Rehabilitation Specialists | — | — | Nov 1, 16 |
| The California Department of Corrections and Rehabilitation | — | — | Oct 28, 16 |
| East Valley Community Health Center, Inc. | — | — | Oct 18, 16 |
| Kaiser Permanente Health Plan, Inc of Northern California | — | — | Oct 12, 16 |
| Cisco Systems, Inc. | — | — | Aug 18, 16 |
| Integrity Transitional Hospital | — | — | Aug 15, 16 |
| Apria Healthcare | — | — | Aug 5, 16 |
| Yuba Sutter Medical Clinic | — | — | Aug 3, 16 |
| USC Keck and Norris Hospitals | — | — | Aug 1, 16 |
| Brian Goldman, MD A Medical Corporation | — | — | Jul 19, 16 |
| Mercy Medical Center Redding | — | — | Jun 1, 16 |
| Saint Agnes Medical Center | — | — | May 2, 16 |
| CDCR - California Health Care Facility | — | — | May 2, 16 |
| Luque Chiropractic, Inc. | — | — | May 1, 16 |
| Berkeley Endocrine Clinic | — | — | Apr 22, 16 |
| Bon Secours Health System, Inc. | — | — | Apr 18, 16 |
| Northrop Grumman Systems Corporation | — | — | Apr 18, 16 |
| Imperial Valley Family Care Medical Group, APC | — | — | Mar 21, 16 |
| OptumRx | — | — | Mar 16, 16 |
| SCAN Health Plan | — | — | Mar 4, 16 |
| Community Family Care Medical Group IPA, Inc | — | — | Feb 29, 16 |
| Fairchild Medical Center | — | — | Dec 16, 15 |
| Washington Township Health Care District | — | — | Aug 26, 15 |
| Dominican Hospital | — | — | Jul 16, 15 |
| North East Medical Services | — | — | Jul 11, 15 |
| East Bay Perinatal Medical Associates | — | — | Jun 1, 15 |
| Medical Informatics Engineering and NoMoreClipboard, a wholly owned subsidiary of Medical Informatics Engineering | — | — | May 7, 15 |
| Stanislaus Surgical Hospital | — | — | Apr 5, 15 |
| Molina Healthcare of California, Inc. | — | — | Mar 26, 15 |
| Service Systems Associates, Inc. | — | — | Mar 24, 15 |
| Premera Blue Cross, including Academe, Inc. (formerly known as LifeWise Health Plan of Arizona, Inc.), Connexion Insurance Solutions, Inc., Life Wise Health Plan of Washington, Life Wise Health Plan of Oregon, Inc., LifeWise Assurance Company, Vivacity | — | — | Mar 3, 15 |
| James R. Glidewell, Dental Ceramics, Inc. and its subsidiaries | — | — | Feb 28, 15 |
| Valley Community Healthcare | — | — | Feb 24, 15 |
| Kaiser Foundation Hospitals, Northern California | — | — | Jan 1, 15 |
| Contra Costa Health Plan | — | — | Dec 1, 14 |
| EMCOR Services Mesa Energy Systems | — | — | Nov 25, 14 |
| Physicians Skin and Weight Centers, Inc. | — | — | Nov 4, 14 |
| Providence Saint Joseph Medical Center | — | — | Nov 1, 14 |
| Inland Empire Health Plan (IEHP) | — | — | Oct 28, 14 |
| University of California Davis Medical Center | — | — | Sep 25, 14 |
| Cedars-Sinai Health System | — | — | Jun 23, 14 |
| CVS Pharmacy, Inc. | — | — | Jun 19, 14 |
| Riverside County Regional Medical Center | — | — | Jun 17, 14 |
| Santa Rosa Memorial Hospital | — | — | Jun 2, 14 |
| Mercy Medical Center Redding Oncology Clinic | — | — | Jun 1, 14 |
| Department of Managed Health Care | — | — | May 16, 14 |
| Community Health Systems Professional Services Corporation | — | — | Apr 10, 14 |
| NCO Financial Systems, Inc. | — | — | Mar 29, 14 |
| Sutherland Healthcare Solutions | — | — | Feb 5, 14 |
| L.A. Care Health Plan | — | — | Jan 22, 14 |
| The Lifetime Healthcare Companies, including its affiliates Excellus BlueCross BlueShield, Lifetime Health Medical Group, Lifetime Benefit Solutions, Lifetime Care, The MedAmerica Companies, and Univera Healthcare | — | — | Dec 23, 13 |
| St. Joseph Health System | — | — | Dec 16, 13 |
| San Mateo Medical Center | — | — | Dec 5, 13 |
| Beacon Health System | — | — | Nov 19, 13 |
| Horizon Healthcare Services, Inc.,dba Horizon Blue Cross Blue Shield of New Jersey, and its affiliates | — | — | Nov 1, 13 |
| California Pacific Medical Center | — | — | Oct 15, 13 |
| AHMC Healthcare, Inc and affiliated hospitals | — | — | Oct 12, 13 |
| Kaiser Foundation Hospital Orange County, Anaheim Medical Center | — | — | Sep 25, 13 |
| Cottage Health System | — | — | Sep 23, 13 |
| Santa Clara Valley Medical Center | — | — | Sep 14, 13 |
| Adobe Systems Incorporated | — | — | Sep 11, 13 |
| Silverberg Surgical and Medical Group | — | — | Sep 10, 13 |
| UCSF Medical Center | — | — | Sep 9, 13 |
| DaVita, a division of DaVita HealthCare Partners Inc. | — | — | Sep 6, 13 |
| FSV Payment Systems | — | — | Jul 22, 13 |
| Advocate Medical Group | — | — | Jul 15, 13 |
| Cogent Healthcare, Inc. | — | — | May 5, 13 |
| Sutter Medical Foundation | — | — | Apr 26, 13 |
| WestCoast Children's Clinic | — | — | Apr 16, 13 |
| Sutter Health East Bay Region (Alta Bates Summit Medical Center; Sutter Delta Medical Center; Eden Medical Center) | — | — | Apr 15, 13 |
| Sonoma Valley Hospital | — | — | Feb 14, 13 |
| Stanford School of Medicine & Lucile Packard Children's Hospital | — | — | Jan 9, 13 |
| NECA/IBEW Family Medical Care Plan | — | — | Dec 28, 12 |
| Calif. Department of Health Care Services | — | — | Dec 10, 12 |
| California Department of Healthcare Services | — | — | Nov 5, 12 |
| St. Therese Medical Group | — | — | Jul 22, 12 |
| Stanford Hospital & Clinics and School of Medicine | — | — | Jul 15, 12 |
| Apria Healthcare, Inc. | — | — | Jun 14, 12 |
| California Correctional Health Care Services (CCHCS) | — | — | Jun 11, 12 |
| St Mary Medical Center | — | — | May 7, 12 |
| Cigna Dental | — | — | Mar 23, 12 |
| Kern Medical Center | — | — | Feb 25, 12 |
| Emory Healthcare, Inc. | — | — | Feb 20, 12 |
| Perry Dental | — | — | Feb 16, 12 |
| St. Joseph's Medical Center | — | — | Feb 2, 12 |
| San Jose Medical Supply Company | — | — | Aug 1, 11 |
| UnitedHealth Group health plan single affiliated covered entity | — | — | Jun 28, 11 |
| Dominion Dental Services, Inc., Dominion National Insurance Company, and Dominion Dental Services USA, Inc. (hereinafter referred to collectively as “Dominion National”). | — | — | Aug 25, 10 |