HHS OCR report ยท 2022
Common Ground Healthcare Cooperative data breach
OCR report facts
- Covered entity
- Common Ground Healthcare Cooperative
- Entity type
- Health Plan
- State
- Wisconsin
- Individuals affected
- 133,714
- Submission date
- Aug 12, 2022
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Network Server
- Business associate present
- Yes
- Status
- Archive (closed)
OCR description
The covered entity (CE), Common Ground Healthcare Cooperative, reported that its business associate (BA) was the victim of a breach affecting the protected health information (PHI) of 133,714 individuals. The PHI involved included names, dates of birth, addresses, Social Security numbers, and diagnostic codes. The CE notified HHS and assisted the BA in notifying the media and affected individuals. Substitute notice was also provided. In response to the breach, the CE provided complimentary c...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the Common Ground Healthcare Cooperative data breach?
The report to HHS OCR lists 133,714 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Aug 12, 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 Common Ground Healthcare Cooperative 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 Common Ground Healthcare Cooperative.