HHS OCR report ยท 2024
Pomona Valley Hospital Medical Center data breach
OCR report facts
- Covered entity
- Pomona Valley Hospital Medical Center
- Entity type
- Healthcare Provider
- State
- California
- Individuals affected
- 13,516
- Submission date
- Mar 20, 2024
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Network Server
- Business associate present
- Yes
- Status
- Archive (closed)
OCR description
The covered entity (CE), Pomona Valley Hospital Medical Center, reported that its business associate (BA) experienced a cybersecurity incident that affected the protected health information (PHI) of 13,516 individuals. The PHI involved included names, dates of birth, diagnoses, medications, and other treatment information. The CE notified HHS, affected individuals, and the media. In response to the breach, the CE implemented additional administrative and technical safeguards. The CE also disc...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the Pomona Valley Hospital Medical Center data breach?
The report to HHS OCR lists 13,516 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Mar 20, 2024.
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 Pomona Valley Hospital Medical Center 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 Pomona Valley Hospital Medical Center.