HHS OCR report ยท 2023
MHMR Authority of Brazos Valley data breach
OCR report facts
- Covered entity
- MHMR Authority of Brazos Valley
- Entity type
- Healthcare Provider
- State
- Texas
- Individuals affected
- 78,984
- Submission date
- Feb 28, 2023
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Network Server
- Business associate present
- No
- Status
- Archive (closed)
OCR description
The covered entity (CE), MHMR Authority of Brazos Valley, reported that it experienced a ransomware incident that affected the protected health information (PHI) of approximately 78,984 individuals who were patients of the CE. The PHI involved included names, addresses, dates of birth, Social Security numbers, claims information, and diagnoses or conditions. The CE notified HHS, the affected individuals, the media, and posted substitute notice on its website. In response to the breach, the CE...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the MHMR Authority of Brazos Valley data breach?
The report to HHS OCR lists 78,984 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Feb 28, 2023.
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 MHMR Authority of Brazos Valley 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 MHMR Authority of Brazos Valley.