HHS OCR report · 2016
Warren Clinic data breach
OCR report facts
- Covered entity
- Warren Clinic
- Entity type
- Healthcare Provider
- State
- Oklahoma
- Individuals affected
- 2,938
- Submission date
- Oct 7, 2016
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Network Server
- Business associate present
- No
- Status
- Archive (closed)
OCR description
An unauthorized user deployed ransomware to invade the covered entity’s (CE) computer server and demanded payment to recover the CE’s patient data. The breach involved the protected health information (PHI) of 2,938 individuals and included demographic and clinical information. The CE, the Warren Clinic, operated by St. Francis Health Systems, provided breach notification to HHS, affected individuals and the media and provided affected individuals with complimentary identity protection cove...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the Warren Clinic data breach?
The report to HHS OCR lists 2,938 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Oct 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 Warren Clinic 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 Warren Clinic.