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CA · 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 5 of 16. 786 reports.

HIPAA breach reports from the HHS OCR Breach Portal
Covered entityEntity typeIndividualsSubmittedType of breachStatus
City of HopeHealthcare Provider902,540Dec 12, 2023Hacking/IT IncidentArchive (closed)
Keenan & AssociatesHealth Plan1,475,991Dec 11, 2023Hacking/IT IncidentArchive (closed)
Prime HealthcareHealthcare Provider7,185Dec 6, 2023Hacking/IT IncidentArchive (closed)
4 Over LLC Group Health PlanHealth Plan6,491Dec 4, 2023Hacking/IT IncidentArchive (closed)
West Anaheim Medical CenterHealthcare Provider1,166Nov 29, 2023Hacking/IT IncidentArchive (closed)
Sierra County Department of Public Health, Department of Behavioral HealthHealthcare Provider2,463Nov 22, 2023Hacking/IT IncidentArchive (closed)
California Physicians’ Service d/b/a Blue Shield of CaliforniaHealth Plan636,849Nov 17, 2023Hacking/IT IncidentArchive (closed)
Blue Shield of California OR Blue Shield of California Promise Health PlanBusiness Associate27,832Nov 17, 2023Hacking/IT IncidentArchive (closed)
Westside Community ServicesHealthcare Provider2,484Nov 15, 2023Hacking/IT IncidentArchive (closed)
Southland Integrated Services, Inc.Healthcare Provider7,988Nov 10, 2023Hacking/IT IncidentArchive (closed)
Boomerang HealthcareHealthcare Provider1,204Nov 7, 2023Unauthorized Access/DisclosureArchive (closed)
Sutter HealthHealthcare Provider845,441Nov 3, 2023Hacking/IT IncidentArchive (closed)
Life Generations Healthcare LLCHealthcare Provider5,832Nov 3, 2023Hacking/IT IncidentArchive (closed)
Rebekah Children’s ServicesHealthcare Provider2,033Nov 3, 2023Hacking/IT IncidentArchive (closed)
Postmeds, Inc.Healthcare Provider2,369,026Oct 30, 2023Hacking/IT IncidentArchive (closed)
Napa Integrated Medicine PCBusiness Associate600Oct 19, 2023TheftArchive (closed)
Prospect Medical Holdings, Inc.Business Associate1,309,096Sep 29, 2023Hacking/IT IncidentArchive (closed)
Valley Mountain Regional CenterBusiness Associate126,679Sep 29, 2023Hacking/IT IncidentArchive (closed)
Oak Valley Hospital DistrictHealthcare Provider284,629Sep 15, 2023Hacking/IT IncidentArchive (closed)
Sutter North Surgery CenterHealthcare Provider861Sep 8, 2023Hacking/IT IncidentArchive (closed)
Delta Dental of CaliforniaHealth Plan7,056,189Sep 5, 2023Hacking/IT IncidentArchive (closed)
O'Neil Digital Solutions, LLCBusiness Associate1,722Aug 30, 2023Unauthorized Access/DisclosureArchive (closed)
Madera CountyHealth Plan1,446Aug 9, 2023Unauthorized Access/DisclosureArchive (closed)
Redwood Coast Regional CenterHealthcare Provider1,345Aug 7, 2023Unauthorized Access/DisclosureArchive (closed)
Gary Motykie, M.D., a Medical CorporationHealthcare Provider3,400Aug 5, 2023Hacking/IT IncidentArchive (closed)
Capital Neurological SurgeonsHealthcare Provider1,769Aug 4, 2023Hacking/IT IncidentArchive (closed)
UC Davis HealthHealthcare Provider3,201Jul 28, 2023Hacking/IT IncidentArchive (closed)
Bi-Bett CorporationBusiness Associate4,639Jul 25, 2023Hacking/IT IncidentArchive (closed)
Sutter Senior CareHealthcare Provider519Jul 22, 2023Hacking/IT IncidentArchive (closed)
Tahoe Forest Hospital DistrictHealthcare Provider1,119Jul 17, 2023Unauthorized Access/DisclosureArchive (closed)
Molina HealthcareHealth Plan7,702Jul 11, 2023Hacking/IT IncidentArchive (closed)
Orrick, Herrington & Sutcliffe LLPBusiness Associate342,176Jun 30, 2023Hacking/IT IncidentArchive (closed)
Deanco Healthcare LLC dba Mission Community HospitalHealthcare Provider269,847Jun 30, 2023Hacking/IT IncidentArchive (closed)
Desert Physicians ManagementBusiness Associate63,713Jun 22, 2023Hacking/IT IncidentArchive (closed)
Community Research FoundationHealthcare Provider31,104Jun 20, 2023Hacking/IT IncidentArchive (closed)
Petaluma Health CenterHealthcare Provider124,862Jun 2, 2023Hacking/IT IncidentArchive (closed)
iSpace, Inc.Business Associate24,382May 31, 2023Hacking/IT IncidentArchive (closed)
Brightline, Inc.Business Associate8,432May 26, 2023Hacking/IT IncidentArchive (closed)
Asian Health ServicesHealthcare Provider6,270May 25, 2023Hacking/IT IncidentArchive (closed)
Vascular Center of Intervention, Inc.Healthcare Provider3,833May 24, 2023Hacking/IT IncidentArchive (closed)
County of SacramentoHealthcare Provider5,525May 23, 2023Hacking/IT IncidentArchive (closed)
Hiawatha Harris MD, Inc. dba Pathways to Wellness Medication ClinicsHealthcare Provider9,182May 18, 2023Hacking/IT IncidentArchive (closed)
Fertility Specialists Medical GroupHealthcare Provider9,197May 15, 2023Hacking/IT IncidentArchive (closed)
Brightline, Inc.Business Associate28,975May 10, 2023Hacking/IT IncidentArchive (closed)
Brightside Health, Inc.Healthcare Provider767Apr 30, 2023Unauthorized Access/DisclosureArchive (closed)
University of California, San FranciscoHealthcare Provider676Apr 26, 2023Hacking/IT IncidentArchive (closed)
Brightline, Inc.Business Associate180,694Apr 20, 2023Hacking/IT IncidentArchive (closed)
MiniMed Distribution Corp.Healthcare Provider58,374Apr 14, 2023Unauthorized Access/DisclosureArchive (closed)
Brightline, Inc.Business Associate49,968Apr 13, 2023Hacking/IT IncidentArchive (closed)
John Muir Health - Walnut Creek Medical CenterHealthcare Provider821Apr 13, 2023Unauthorized Access/DisclosureArchive (closed)

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