Mid Michigan Medical Billing Service, Inc.

Under investigationSubmitted 01/05/2026

State: MI
Covered entity type: Business Associate
Individuals affected: 28,185
Business associate present: Yes
Type of breach: Hacking/IT Incident
Location of breached information: Network Server
First seen by InfoSec Signals: 9/23/2026
Last seen in OCR export: 9/23/2026

OCR description

OCR has not published a description. Descriptions usually appear when an investigation is closed and the report moves to the archive.

Change history

9/23/2026Added to OCR's under investigation list

Source: U.S. Department of Health and Human Services, Office for Civil Rights, Breach Portal. Records are reproduced as published; entity names and figures are OCR's.