HHS OCR report · 2023
Marshall & Melhorn, LLC data breach
OCR report facts
- Covered entity
- Marshall & Melhorn, LLC
- Entity type
- Business Associate
- State
- Ohio
- Individuals affected
- 9,412
- Submission date
- Jun 7, 2023
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Network Server
- Business associate present
- Yes
- Status
- Archive (closed)
OCR description
Marshall and Melhorn, a business associate (BA), reported that it experienced a ransomware incident that affected the protected health information (PHI) of 9,412 individuals. The PHI involved included names, addresses, dates of birth, Social Security and drivers’ license numbers, and financial and treatment information. The BA notified HHS, affected individuals, the media and posted substitute notice on its website. In response to the breach, the BA offered free credit monitoring services and...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the Marshall & Melhorn, LLC data breach?
The report to HHS OCR lists 9,412 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Jun 7, 2023.
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 Marshall & Melhorn, LLC 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 Marshall & Melhorn, LLC.