HHS OCR report · 2025
BayMark Health Services, Inc. data breach
OCR report facts
- Covered entity
- BayMark Health Services, Inc.
- Entity type
- Business Associate
- State
- Texas
- Individuals affected
- 265,701
- Submission date
- Jan 8, 2025
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Network Server
- Business associate present
- Yes
- Status
- Archive (closed)
OCR description
The business associate (BA), BayMark Health Services, reported that an unauthorized individual gained access to its system through brute force and launched a ransomware attack affecting the electronic protected health information (ePHI) of approximately 265,701 individuals. The ePHI involved included names, dates of birth, social security numbers, drivers’ license numbers, insurance, and medical information. The BA notified HHS, the affected covered entities, the affected individuals, and the...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the BayMark Health Services, Inc. data breach?
The report to HHS OCR lists 265,701 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Jan 8, 2025.
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 BayMark Health Services, Inc. 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 BayMark Health Services, Inc..