HHS OCR report · 2022
Grayling Anesthesia Associates PC data breach
OCR report facts
- Covered entity
- Grayling Anesthesia Associates PC
- Entity type
- Healthcare Provider
- State
- Michigan
- Individuals affected
- 15,328
- Submission date
- Sep 23, 2022
- 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), Grayling Anesthesia Associates, reported that its business associate (BA) was the subject of a ransomware attack that affected the protected health information (PHI) of 15,328 individuals. The PHI involved included names, addresses, dates of birth, drivers’ license and Social Security numbers, claims and financial information, diagnoses, medications, and other treatment information. The CE notified HHS, the affected individuals, the media, and provided substitute noti...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the Grayling Anesthesia Associates PC data breach?
The report to HHS OCR lists 15,328 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Sep 23, 2022.
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 Grayling Anesthesia Associates PC 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 Grayling Anesthesia Associates PC.