HHS OCR report · 2022
Michigan Avenue Immediate Care data breach
OCR report facts
- Covered entity
- Michigan Avenue Immediate Care
- Entity type
- Healthcare Provider
- State
- Illinois
- Individuals affected
- 144,104
- Submission date
- Jun 30, 2022
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Network Server
- Business associate present
- No
- Status
- Archive (closed)
OCR description
Michigan Avenue Immediate Care, the covered entity (CE), reported that it experienced a cyber-attack that compromised the protected health information (PHI) of 144,104 individuals. The PHI involved included names, addresses, telephone numbers, dates of birth, Social Security numbers, drivers’ license numbers, and health insurance and treatment information. The CE notified HHS, affected individuals, the media, and posted substitute notice on its website. In its mitigation efforts, the CE imple...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the Michigan Avenue Immediate Care data breach?
The report to HHS OCR lists 144,104 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Jun 30, 2022.
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?
No. The report is in the OCR portal archive, which holds reports where OCR has closed its review.
Is a breach notice letter from Michigan Avenue Immediate Care 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 Michigan Avenue Immediate Care.