HHS OCR report · 2015
Mayo Clinic Health System- Red Wing data breach
OCR report facts
- Covered entity
- Mayo Clinic Health System- Red Wing
- Entity type
- Healthcare Provider
- State
- Minnesota
- Individuals affected
- 601
- Submission date
- Jul 13, 2015
- Type of breach
- Unauthorized Access/Disclosure
- Location of breached information
- Electronic Medical Record
- Business associate present
- No
- Status
- Archive (closed)
OCR description
On May 18, 2015, an access audit revealed that the covered entity's (CE) employee accessed patients’ electronic medical records beyond the scope of authorized access and assigned job responsibilities. The CE discovered that the unauthorized access dated back to 2009. The breach affected approximately 601 individuals and the types of protected health information (PHI) involved in the breach included patients' diagnoses and medical conditions. The CE provided breach notification to HHS, affe...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the Mayo Clinic Health System- Red Wing data breach?
The report to HHS OCR lists 601 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Jul 13, 2015.
What type of breach was it?
The OCR portal lists the type of breach as Unauthorized Access/Disclosure, with the breached information located in: Electronic Medical Record.
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 Mayo Clinic Health System- Red Wing 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 Mayo Clinic Health System- Red Wing.