HHS OCR report · 2023
Health Alliance Hospital Mary's Avenue Campus data breach
OCR report facts
- Covered entity
- Health Alliance Hospital Mary's Avenue Campus
- Entity type
- Healthcare Provider
- State
- New York
- Individuals affected
- 264,197
- Submission date
- Dec 11, 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) HealthAlliance Hospital Mary’s Avenue Campus reported that it experienced a security incident that affected the protected health information (PHI) of 264,197 individuals. The PHI involved included demographic, clinical, and financial information. The CE notified HHS, the media and affected individuals. In response to the breach, the CE implemented additional technical and security safeguards.
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the Health Alliance Hospital Mary's Avenue Campus data breach?
The report to HHS OCR lists 264,197 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Dec 11, 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 Health Alliance Hospital Mary's Avenue Campus 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 Health Alliance Hospital Mary's Avenue Campus.