HHS OCR report · 2016
The Ambulatory Surgery Center at St. Mary (ACASM) data breach
OCR report facts
- Covered entity
- The Ambulatory Surgery Center at St. Mary (ACASM)
- Entity type
- Healthcare Provider
- State
- Pennsylvania
- Individuals affected
- 13,000
- Submission date
- Jul 7, 2016
- 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), The Ambulatory Surgery Center at St. Mary, experienced a ransomware attack affecting the electronic protected health information (ePHI) of approximately 13,000 individuals. The ePHI involved included names, addresses, dates of birth, Social Security numbers, drivers’ license information, and clinical information. Following the breach, the CE implemented additional technical and security safeguards and retrained its staff. OCR provided technical assistance to the CE.
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the The Ambulatory Surgery Center at St. Mary (ACASM) data breach?
The report to HHS OCR lists 13,000 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Jul 7, 2016.
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 The Ambulatory Surgery Center at St. Mary (ACASM) 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 The Ambulatory Surgery Center at St. Mary (ACASM).