HHS OCR report ยท 2020
Kaiser Health Plan, Southern California data breach
OCR report facts
- Covered entity
- Kaiser Health Plan, Southern California
- Entity type
- Health Plan
- State
- California
- Individuals affected
- 167,095
- Submission date
- Feb 6, 2020
- Type of breach
- Unauthorized Access/Disclosure
- Location of breached information
- Paper/Films
- Business associate present
- No
- Status
- Archive (closed)
OCR description
The covered entity (CE), Kaiser Health Plan, Southern California, reported that an employee inadvertently mailed the protected health information (PHI) of 167,095 individuals to the wrong addresses. The PHI involved included names, addresses, birthdates, diagnoses, lab results, medications prescribed, and claims information. The CE notified HHS, affected individuals, the media, and posted substitute notice on its website. A toll-free telephone number was established for questions or concer...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the Kaiser Health Plan, Southern California data breach?
The report to HHS OCR lists 167,095 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Feb 6, 2020.
What type of breach was it?
The OCR portal lists the type of breach as Unauthorized Access/Disclosure, with the breached information located in: Paper/Films.
Is the investigation still open?
No. The report is in the OCR portal archive, which holds reports where OCR has closed its review.
Is a breach notice letter from Kaiser Health Plan, Southern California legitimate?
This site cannot verify letters. Check the sender against the organisation's official website and the HHS OCR breach portal, and avoid calling numbers or clicking links only listed in an unexpected message. See our guide on what to do after a data breach notice.
Source: HHS OCR Breach Portal, OCR export October 2026. Network USA is not affiliated with HHS or Kaiser Health Plan, Southern California.