HHS OCR report ยท 2025
CareSTL Health, Inc. data breach
OCR report facts
- Covered entity
- CareSTL Health, Inc.
- Entity type
- Healthcare Provider
- State
- Missouri
- Individuals affected
- 501
- Submission date
- Oct 3, 2025
- 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), CareSTL Health, reported that it experienced a ransomware attack that compromised the protected health information (PHI) of 501 individuals. The PHI involved clinical and demographic information. In its mitigation efforts, the CE revised its policies and procedure regarding the HIPAA Privacy and Security Rules, trained or retrained its workforce, and mailed notification letters to all affected individuals. 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 CareSTL Health, Inc. data breach?
The report to HHS OCR lists 501 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Oct 3, 2025.
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 CareSTL Health, Inc. 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 CareSTL Health, Inc..