HHS OCR report ยท 2019
Midwest Medical Center data breach
OCR report facts
- Covered entity
- Midwest Medical Center
- Entity type
- Healthcare Provider
- State
- Illinois
- Individuals affected
- 8,010
- Submission date
- May 10, 2019
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Business associate present
- Yes
- Status
- Archive (closed)
OCR description
Midwest Medical Center (MMC), the covered entity (CE), reported that an employee of its business associate (BA), OS, Inc., (OS), was the victim of an email phishing scheme that affected the protected health information (PHI) of 8,010 individuals. The PHI involved included names, addresses, dates of birth, medical record numbers, and treatment information. MMC notified HHS, the media, and posted substitute notice on its website. MMC and OS notified affected individuals and offered complimen...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the Midwest Medical Center data breach?
The report to HHS OCR lists 8,010 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on May 10, 2019.
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 Midwest Medical Center 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 Midwest Medical Center.