HHS OCR report · 2022
Partnership HealthPlan of California data breach
OCR report facts
- Covered entity
- Partnership HealthPlan of California
- Entity type
- Health Plan
- State
- California
- Individuals affected
- 852,375
- Submission date
- May 18, 2022
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Network Server
- Business associate present
- No
- Status
- Archive (closed)
OCR description
Partnership HealthPlan of California, the covered entity (CE), reported that it experienced a ransomware incident that affected the protected health information (PHI) of 852,375 individuals. The PHI involved included names, addresses, drivers’ license and Social Security numbers, dates of birth, diagnoses, lab results, medications, and claims information. The CE notified HHS, affected individuals, the media, and posted substitute notice on its website. In its mitigation efforts, the CE imp...
Text as published on the HHS OCR breach portal.
Other reports by Partnership HealthPlan of California
| Covered entity | State | Entity type | Individuals | Submitted | Type of breach | Status |
|---|---|---|---|---|---|---|
| Partnership HealthPlan of California | CA | Health Plan | 1,526 | Sep 4, 2026 | Unauthorized Access/Disclosure | Archive (closed) |
Frequently asked questions
How many people were affected by the Partnership HealthPlan of California data breach?
The report to HHS OCR lists 852,375 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on May 18, 2022.
What type of breach was it?
The OCR portal lists the type of breach as Hacking/IT Incident, with the breached information located in: Network Server.
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 Partnership HealthPlan of 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 Partnership HealthPlan of California.