HHS OCR report ยท 2025
Centers for Medicare & Medicaid Services data breach
Centers for Medicare & Medicaid Services, a health plan in Maryland, reported a breach affecting 107,154 individuals to HHS OCR on Jun 30, 2025.
OCR report facts
- Covered entity
- Centers for Medicare & Medicaid Services
- Entity type
- Health Plan
- State
- Maryland
- Individuals affected
- 107,154
- Submission date
- Jun 30, 2025
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Network Server
- Business associate present
- No
- Status
- Under investigation
Other reports by Centers for Medicare & Medicaid Services
| Covered entity | State | Entity type | Individuals | Submitted | Type of breach | Status |
|---|---|---|---|---|---|---|
| Centers for Medicare & Medicaid Services | MD | Health Plan | 3,112,815 | Sep 6, 2024 | Hacking/IT Incident | Archive (closed) |
| Centers for Medicare & Medicaid Services | MD | Health Plan | 2,342,357 | Jul 28, 2023 | Hacking/IT Incident | Archive (closed) |
| Centers for Medicare & Medicaid Services | MD | Health Plan | 10,011 | Apr 7, 2023 | Unauthorized Access/Disclosure | Archive (closed) |
Frequently asked questions
How many people were affected by the Centers for Medicare & Medicaid Services data breach?
The report to HHS OCR lists 107,154 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Jun 30, 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?
Yes. The OCR portal lists this report as under investigation.
Is a breach notice letter from Centers for Medicare & Medicaid Services 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 Centers for Medicare & Medicaid Services.