HHS OCR report ยท 2023
Dean Health Service Company, LLC (referenced herein as "WellFirst Health") data breach
OCR report facts
- Covered entity
- Dean Health Service Company, LLC (referenced herein as "WellFirst Health")
- Entity type
- Business Associate
- State
- Minnesota
- Individuals affected
- 1,027
- Submission date
- Jul 28, 2023
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Network Server
- Business associate present
- Yes
- Status
- Archive (closed)
OCR description
Dean Health Service Company, the business associate (BA), reported that its subcontractor experienced a cyber-attack that compromised the protected health information (PHI) of 1,027 individuals. The PHI involved included names, addresses, dates of birth, social security numbers, claims information, and healthcare provider information. The BA notified HHS, affected individuals, the media, and posted substitute notice on its website. In response to the breach the BA and its subcontractor implem...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the Dean Health Service Company, LLC (referenced herein as "WellFirst Health") data breach?
The report to HHS OCR lists 1,027 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Jul 28, 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 Dean Health Service Company, LLC (referenced herein as "WellFirst Health") 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 Dean Health Service Company, LLC (referenced herein as "WellFirst Health").