HHS OCR report · 2024
Cornerstone Healthcare Group Management Services LLC data breach
OCR report facts
- Covered entity
- Cornerstone Healthcare Group Management Services LLC
- Entity type
- Business Associate
- State
- Kentucky
- Individuals affected
- 484,957
- Submission date
- Mar 14, 2024
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Network Server
- Business associate present
- Yes
- Status
- Archive (closed)
OCR description
Cornerstone Healthcare Group Management Services, the business associate (BA), reported that it experienced a hacking incident that compromised the protected health information (PHI) of 484,957 individuals. The PHI involved included names, addresses, dates of birth, Social Security numbers, drivers’ license numbers, financial information, health insurance information and clinical information. The notified HHS, the affected individuals, and the media. In response to the breach, the BA strength...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the Cornerstone Healthcare Group Management Services LLC data breach?
The report to HHS OCR lists 484,957 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Mar 14, 2024.
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 Cornerstone Healthcare Group Management Services LLC 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 Cornerstone Healthcare Group Management Services LLC.