HHS OCR report · 2020
Munson Healthcare data breach
OCR report facts
- Covered entity
- Munson Healthcare
- Entity type
- Healthcare Provider
- State
- Michigan
- Individuals affected
- 75,202
- Submission date
- Feb 26, 2020
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Business associate present
- No
- Status
- Archive (closed)
OCR description
The covered entity (CE), Munson Healthcare, reported that several employees were the subjects of an email phishing incident that affected the protected health information (PHI) of 75,202 individuals. The PHI involved included names, dates of birth, health insurance information, medical record numbers, prescription information, diagnoses, Social Security numbers, financial information, drivers’ license numbers, and other treatment information. The CE notified HHS, affected individuals, the med...
Text as published on the HHS OCR breach portal.
Other reports by Munson Healthcare
| Covered entity | State | Entity type | Individuals | Submitted | Type of breach | Status |
|---|---|---|---|---|---|---|
| Munson Healthcare | MI | Healthcare Provider | 1,186 | Sep 17, 2025 | Unauthorized Access/Disclosure | Archive (closed) |
Frequently asked questions
How many people were affected by the Munson Healthcare data breach?
The report to HHS OCR lists 75,202 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Feb 26, 2020.
What type of breach was it?
The OCR portal lists the type of breach as Hacking/IT Incident, with the breached information located in: Email.
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 Munson Healthcare 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 Munson Healthcare.