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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 16 of 16. 786 reports.

HIPAA breach reports from the HHS OCR Breach Portal
Covered entityEntity typeIndividualsSubmittedType of breachStatus
Muir Orthopaedic Specialists, A Medical Group Inc.Healthcare Provider1,800Sep 7, 2011TheftArchive (closed)
Multi-Speciality Collection Services, LLCBusiness Associate19,651Aug 29, 2011Unauthorized Access/DisclosureArchive (closed)
Mills-Peninsula Health ServicesHealthcare Provider1,500Jul 29, 2011Unauthorized Access/DisclosureArchive (closed)
Yanez Dental CorporationHealthcare Provider10,190Jul 4, 2011TheftArchive (closed)
Health Plan of San MateoHealth Plan694Jun 29, 2011Unauthorized Access/DisclosureArchive (closed)
HealthCare PartnersHealthcare Provider15,677Jun 16, 2011TheftArchive (closed)
Fidelity National Technology Imaging (FNTI)Business Associate1,192Jun 10, 2011LossArchive (closed)
Robert B. Miller, MDHealthcare Provider620May 17, 2011TheftArchive (closed)
EISENHOWER MEDICAL CENTERHealthcare Provider514,330Mar 30, 2011TheftArchive (closed)
County of Los AngelesHealthcare Provider667Mar 30, 2011TheftArchive (closed)
Long Beach Memorial Medical CenterHealthcare Provider2,250Feb 11, 2011Unauthorized Access/DisclosureArchive (closed)
California Therapy SolutionsHealthcare Provider1,250Dec 22, 2010TheftArchive (closed)
Memorial Hospital of GardenaHealthcare Provider771Nov 25, 2010Unauthorized Access/DisclosureArchive (closed)
Northridge Hospital Medical CenterHealthcare Provider716Nov 2, 2010LossArchive (closed)
LORENZO BROWN, MD INC.Healthcare Provider928Sep 29, 2010TheftArchive (closed)
Eden Medical CenterBusiness Associate1,474Sep 23, 2010TheftArchive (closed)
Oroville HospitalBusiness Associate1,474Sep 23, 2010TheftArchive (closed)
County of Los AngelesHealthcare Provider33,000Sep 17, 2010TheftArchive (closed)
Loma Linda University School of DentistryHealthcare Provider10,100Aug 11, 2010TheftArchive (closed)
Care 1st Health PlanBusiness Associate29,000Jul 6, 2010Loss, OtherArchive (closed)
Children's Hospital & Research Center at OaklandHealthcare Provider1,000Jun 29, 2010OtherArchive (closed)
Silicon Valley Eyecare Optometry and Contact LensesHealthcare Provider40,000May 13, 2010TheftArchive (closed)
John Muir Physician NetworkHealthcare Provider5,450Apr 24, 2010TheftArchive (closed)
St. Joseph Heritage HealthcareHealthcare Provider22,012Apr 23, 2010TheftArchive (closed)
Advanced NeuroSpinal CareHealthcare Provider3,500Feb 23, 2010TheftArchive (closed)
Lucille Packard Children's HospitalHealthcare Provider532Feb 21, 2010OtherArchive (closed)
University of California, San FranciscoHealthcare Provider7,300Jan 27, 2010TheftArchive (closed)
Kaiser Permanente Medical Care ProgramHealthcare Provider15,500Jan 12, 2010TheftArchive (closed)
University of California, San FranciscoHealthcare Provider610Dec 15, 2009OtherArchive (closed)
Kern Medical CenterHealthcare Provider596Dec 10, 2009TheftArchive (closed)
City of Hope National Medical CenterHealthcare Provider5,900Nov 23, 2009TheftArchive (closed)
Michele Del Vicario, MDHealthcare Provider6,145Nov 20, 2009TheftArchive (closed)
L. Douglas Carlson, M.D.Healthcare Provider5,257Nov 20, 2009TheftArchive (closed)
Mark D. Lurie, MDHealthcare Provider5,166Nov 20, 2009TheftArchive (closed)
Joseph F. Lopez, MDHealthcare Provider952Nov 20, 2009TheftArchive (closed)
David I. Cohen, MDHealthcare Provider857Nov 20, 2009TheftArchive (closed)

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