HHS OCR report ยท 2020
McLaren Oakland data breach
OCR report facts
- Covered entity
- McLaren Oakland
- Entity type
- Healthcare Provider
- State
- Michigan
- Individuals affected
- 2,219
- Submission date
- Oct 8, 2020
- Type of breach
- Unauthorized Access/Disclosure
- Location of breached information
- Network Server
- Business associate present
- No
- Status
- Archive (closed)
OCR description
The covered entity (CE), McLaren Oakland, reported that an employee inadvertently made the electronic protected health information (ePHI) of 2,219 individuals viewable via the Internet. The ePHI involved included names, diagnoses, dates of birth, medications prescribed, and additional clinical information. The CE notified HHS, affected individuals, and the media. In response to the breach, the CE strengthened its administrative and technical safeguards to better protect its ePHI. OCR prov...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the McLaren Oakland data breach?
The report to HHS OCR lists 2,219 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Oct 8, 2020.
What type of breach was it?
The OCR portal lists the type of breach as Unauthorized Access/Disclosure, 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 McLaren Oakland 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 McLaren Oakland.