HHS OCR report ยท 2016
McLaren Greater Lansing Cardiovascular Group data breach
OCR report facts
- Covered entity
- McLaren Greater Lansing Cardiovascular Group
- Entity type
- Healthcare Provider
- State
- Michigan
- Individuals affected
- 1,000
- Submission date
- Sep 21, 2016
- Type of breach
- Unauthorized Access/Disclosure
- Location of breached information
- Desktop Computer, Electronic Medical Record, Other
- Business associate present
- No
- Status
- Archive (closed)
Frequently asked questions
How many people were affected by the McLaren Greater Lansing Cardiovascular Group data breach?
The report to HHS OCR lists 1,000 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Sep 21, 2016.
What type of breach was it?
The OCR portal lists the type of breach as Unauthorized Access/Disclosure, with the breached information located in: Desktop Computer, Electronic Medical Record, Other.
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 Greater Lansing Cardiovascular Group 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 Greater Lansing Cardiovascular Group.