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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 4 of 16. 786 reports.

HIPAA breach reports from the HHS OCR Breach Portal
Covered entityEntity typeIndividualsSubmittedType of breachStatus
Calibrated Healthcare, LLCBusiness Associate6,890Aug 2, 2024Hacking/IT IncidentArchive (closed)
Allcare Medical Management IncorporatedBusiness Associate16,378Jul 22, 2024Hacking/IT IncidentArchive (closed)
Kaiser Foundation Hospitals, Northern California and The Permanente Medical Group, Inc.Healthcare Provider3,435Jul 15, 2024Unauthorized Access/DisclosureArchive (closed)
Janna Pharmacy LLCHealthcare Provider26,372Jul 10, 2024Unauthorized Access/DisclosureArchive (closed)
Palomar Health Medical GroupHealthcare Provider1,140,221Jul 3, 2024Hacking/IT IncidentArchive (closed)
Providence Mission Heritage EndocrinologyHealthcare Provider1,875Jun 26, 2024Unauthorized Access/DisclosureArchive (closed)
County of Los Angeles Department of Health ServicesHealthcare Provider41,444Jun 21, 2024Hacking/IT IncidentArchive (closed)
Adventist Health TulareHealthcare Provider70,802May 31, 2024Hacking/IT IncidentArchive (closed)
Tri-City Healthcare DistrictHealthcare Provider108,149May 23, 2024Hacking/IT IncidentArchive (closed)
County of Los Angeles Department of Mental HealthHealthcare Provider1,598May 20, 2024Hacking/IT IncidentArchive (closed)
Precision Medical Products Inc.Healthcare Clearing House1,094May 9, 2024Hacking/IT IncidentArchive (closed)
Redwood Coast Regional CenterHealthcare Provider24,937May 3, 2024Hacking/IT IncidentArchive (closed)
Allergy Medical Group of the North Area, Inc.Healthcare Provider6,934Apr 29, 2024Hacking/IT IncidentArchive (closed)
Inland Physicians Billing ServicesHealthcare Clearing House77,434Apr 27, 2024Hacking/IT IncidentArchive (closed)
Signature Healthcare Services LLCBusiness Associate14,696Apr 27, 2024Hacking/IT IncidentArchive (closed)
Guardant Health, Inc.Healthcare Provider9,309Apr 26, 2024Unauthorized Access/DisclosureArchive (closed)
County of Los Angeles Departments of Health Services and Public HealthHealthcare Provider252,856Apr 25, 2024Hacking/IT IncidentArchive (closed)
NorthBay Healthcare CorporationHealthcare Provider569,012Apr 23, 2024Hacking/IT IncidentArchive (closed)
Dental Health ServicesHealth Plan4,562Apr 16, 2024Unauthorized Access/DisclosureArchive (closed)
Kaiser Foundation Health Plan, Inc.Health Plan13,400,000Apr 12, 2024Unauthorized Access/DisclosureArchive (closed)
Zuckerberg San Francisco General Hospital and Trauma CenterHealthcare Provider754Apr 4, 2024LossArchive (closed)
Olive View-UCLA Medical CenterHealthcare Provider3,716Mar 29, 2024TheftArchive (closed)
Rehabilitation Hospital of Southern CaliforniaHealthcare Provider925Mar 29, 2024Hacking/IT IncidentArchive (closed)
Bakersfield Rehabilitation HospitalHealthcare Provider852Mar 29, 2024Hacking/IT IncidentArchive (closed)
Designed Receivable Solutions, Inc.Business Associate585,035Mar 23, 2024Hacking/IT IncidentArchive (closed)
County of Los Angeles Department of Mental HealthHealthcare Provider1,408Mar 22, 2024Hacking/IT IncidentArchive (closed)
Pomona Valley Hospital Medical CenterHealthcare Provider13,516Mar 20, 2024Hacking/IT IncidentArchive (closed)
California Correctional Health Care ServicesHealthcare Provider1,348Mar 14, 2024Unauthorized Access/DisclosureArchive (closed)
Rancho Family Medical Group, Inc.Healthcare Provider10,480Mar 11, 2024Hacking/IT IncidentArchive (closed)
UC San Diego Health Hillcrest- Hillcrest Medical CenterHealthcare Provider1,642Mar 8, 2024Hacking/IT IncidentArchive (closed)
CDC Dental Management, Co., LLC dba Kids Care Dental & OrthodonticsHealthcare Provider1,286Mar 7, 2024Hacking/IT IncidentArchive (closed)
DGA-Producer Pension & Health PlansHealth Plan4,211Feb 29, 2024Hacking/IT IncidentArchive (closed)
Community Health Group Partnership PlanHealth Plan708Feb 27, 2024Hacking/IT IncidentArchive (closed)
Bold Quail Holdings, LLC (NewGen Administrative Services, LLC)Healthcare Provider105,425Feb 23, 2024Hacking/IT IncidentArchive (closed)
Santa Clarita Community College DistrictHealth Plan2,324Feb 23, 2024Hacking/IT IncidentArchive (closed)
Human Affairs International of CaliforniaBusiness Associate18,347Feb 16, 2024Unauthorized Access/DisclosureArchive (closed)
Qualcomm IncorporatedHealth Plan4,102Feb 15, 2024Hacking/IT IncidentArchive (closed)
Prime Healthcare Employee Health PlanHealth Plan101,135Feb 9, 2024Hacking/IT IncidentArchive (closed)
Kern Regional CenterHealthcare Provider772Jan 26, 2024Unauthorized Access/DisclosureArchive (closed)
J.D. Gilmour & Co., Inc.Business Associate2,570Jan 22, 2024Hacking/IT IncidentArchive (closed)
Native American Health CenterHealthcare Provider4,231Jan 18, 2024Hacking/IT IncidentArchive (closed)
Covenant Care California, LLCHealthcare Provider501Jan 12, 2024Hacking/IT IncidentArchive (closed)
InHealth TechnologiesHealthcare Provider12,143Jan 9, 2024Hacking/IT IncidentArchive (closed)
Sharp Health PlanHealth Plan9,255Jan 8, 2024Hacking/IT IncidentArchive (closed)
Sharp Health PlanHealth Plan8,200Jan 8, 2024Unauthorized Access/DisclosureArchive (closed)
Northern Inyo Healthcare DistrictHealthcare Provider1,305Jan 3, 2024Hacking/IT IncidentArchive (closed)
EDI Health Group dba DentalXChangeHealthcare Clearing House2,574Dec 29, 2023Hacking/IT IncidentArchive (closed)
County of Los Angeles Department of Mental HealthHealthcare Provider1,284Dec 22, 2023Hacking/IT IncidentArchive (closed)
Molina Healthcare of Ohio, Inc.Health Plan1,977Dec 21, 2023Unauthorized Access/DisclosureArchive (closed)
Eyefinity, Inc.Business Associate1,352Dec 14, 2023Unauthorized Access/DisclosureArchive (closed)

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