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CA ยท HHS OCR reports

HIPAA breaches in California

HIPAA breaches affecting 500 or more individuals reported to HHS OCR by covered entities listed in California.

Reports

786

Individuals affected

79,958,213

Under investigation

56

Top type: Hacking/IT Incident

State breach notification law

This state has 2 separate breach notification statutes

Timing: Without unreasonable delay California requires government agencies to notify in the most expedient

Read the California data breach notification law summary

All reports, newest first

Page 1 of 16. 786 reports.

HIPAA breach reports from the HHS OCR Breach Portal
Covered entityEntity typeIndividualsSubmittedType of breachStatus
Alma Family ServicesHealthcare Provider2,753Sep 10, 2026Hacking/IT IncidentUnder investigation
L.A. Care Health PlanHealth Plan4,553Sep 8, 2026Hacking/IT IncidentArchive (closed)
Partnership HealthPlan of CaliforniaHealth Plan1,526Sep 4, 2026Unauthorized Access/DisclosureArchive (closed)
Vista Del Mar Child and Family ServicesHealthcare Provider500Aug 29, 2026Hacking/IT IncidentUnder investigation
Kern Psychiatric Health and Wellness Center, IncHealthcare Provider51,352Aug 21, 2026Hacking/IT IncidentUnder investigation
Silver Summit Medical CorporationHealthcare Provider11,349Aug 19, 2026Hacking/IT IncidentArchive (closed)
University of California Los Angeles HealthHealthcare Provider6,050Aug 4, 2026Unauthorized Access/DisclosureArchive (closed)
zHealth, Inc.Business Associate118,563Jul 29, 2026Hacking/IT IncidentUnder investigation
Regional Center of Orange CountyBusiness Associate16,545Jul 27, 2026Improper DisposalUnder investigation
ServiceTitan, Inc.Health Plan4,851Jul 27, 2026Hacking/IT IncidentArchive (closed)
Risk Program Administrators LLCBusiness Associate8,309Jul 23, 2026Hacking/IT IncidentUnder investigation
One Medical Group, Inc.Healthcare Provider153,174Jul 17, 2026Hacking/IT IncidentUnder investigation
ZenPatient, Inc.Healthcare Provider15,749Jul 17, 2026Hacking/IT IncidentUnder investigation
James C. Standring, DDSHealthcare Provider6,658Jul 17, 2026Hacking/IT IncidentUnder investigation
Madera Community HospitalHealthcare Provider150,810Jul 13, 2026Hacking/IT IncidentUnder investigation
Hollister Family Dental & Implant CenterHealthcare Provider3,809Jul 7, 2026Hacking/IT IncidentUnder investigation
Private National Mortgage Acceptance Company, LLC Group Health PlanHealth Plan3,972Jun 9, 2026Hacking/IT IncidentArchive (closed)
Sierra Management GroupBusiness Associate1,279Jun 7, 2026Hacking/IT IncidentUnder investigation
Gay & Lesbian Community Services Center of Orange County, Inc.Healthcare Provider75,532Jun 5, 2026Hacking/IT IncidentUnder investigation
United Medical DoctorsHealthcare Provider501May 29, 2026Hacking/IT IncidentUnder investigation
AUTOAPS LLCBusiness Associate1,591May 22, 2026Hacking/IT IncidentUnder investigation
Equinix Incorporated Group Health and Welfare Benefit PlanHealth Plan677May 22, 2026Hacking/IT IncidentArchive (closed)
Family Health Centers of San DiegoHealthcare Provider523May 12, 2026Unauthorized Access/DisclosureArchive (closed)
Palomar Health Medical GroupHealthcare Provider501May 8, 2026Hacking/IT IncidentUnder investigation
Sanger Skilled Care, LLC dba Cornerstone Care CenterHealthcare Provider1,510May 7, 2026Hacking/IT IncidentUnder investigation
Ouster, Inc.Health Plan574Apr 30, 2026Unauthorized Access/DisclosureArchive (closed)
Harbor Developmental Disabilities Foundation (d/b/a Harbor Regional Center)Business Associate2,287Apr 22, 2026Hacking/IT IncidentUnder investigation
L.A. Care Health PlanHealth Plan2,885Apr 17, 2026Unauthorized Access/DisclosureArchive (closed)
City Health, a medical corporationHealthcare Provider65,000Apr 14, 2026Unauthorized Access/DisclosureArchive (closed)
Branch Metrics, Inc.Health Plan857Apr 10, 2026Hacking/IT IncidentArchive (closed)
CardioFit Medical Group, Inc.Healthcare Provider7,243Apr 9, 2026Unauthorized Access/DisclosureArchive (closed)
Healthcare In ActionHealthcare Provider1,143Mar 30, 2026Hacking/IT IncidentArchive (closed)
Glendora Surgery CenterHealthcare Provider501Mar 27, 2026Hacking/IT IncidentUnder investigation
Fenwick & West Group Health PlanHealth Plan1,740Mar 24, 2026Hacking/IT IncidentArchive (closed)
Stockton Cardiology Medical GroupHealthcare Provider90,000Mar 18, 2026Hacking/IT IncidentUnder investigation
Amyris Incorporated Health and Welfare PlanHealth Plan2,042Mar 17, 2026Hacking/IT IncidentArchive (closed)
Tieu Dental CorporationHealthcare Provider8,918Mar 5, 2026Hacking/IT IncidentUnder investigation
Providence St. Joseph OrangeHealthcare Provider11,329Feb 27, 2026Hacking/IT IncidentArchive (closed)
Nephrology Associates Medical Group, IncHealthcare Provider4,631Feb 27, 2026Hacking/IT IncidentUnder investigation
AltaMed Health Services CorporationHealthcare Provider501Feb 26, 2026Hacking/IT IncidentUnder investigation
Marin Cancer CareHealthcare Provider27,332Feb 6, 2026Hacking/IT IncidentArchive (closed)
Personalis, Inc.Healthcare Provider650Feb 4, 2026Hacking/IT IncidentUnder investigation
LifeLong Medical CareHealthcare Provider70,000Jan 30, 2026Unauthorized Access/DisclosureArchive (closed)
EDINGER MEDICAL GROUPHealthcare Provider1,246Jan 30, 2026Hacking/IT IncidentArchive (closed)
La Clinica de La Raza, Inc. (La Clinica)Healthcare Provider11,403Jan 22, 2026Hacking/IT IncidentArchive (closed)
Bay Area Community HealthHealthcare Provider9,912Jan 16, 2026Hacking/IT IncidentArchive (closed)
Axis Community HealthHealthcare Provider3,579Jan 16, 2026Hacking/IT IncidentArchive (closed)
Native American Health CenterHealth Plan2,451Jan 14, 2026Hacking/IT IncidentArchive (closed)
Santa Cruz Community HealthHealthcare Provider1,487Jan 12, 2026Hacking/IT IncidentArchive (closed)
Open Door Community Health CentersHealthcare Provider6,633Jan 8, 2026Hacking/IT IncidentArchive (closed)

Source: HHS OCR Breach Portal, OCR export October 2026.