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Regulator-posted notice

Breach notice filed by Dean Health Service Company, LLC (referenced herein as "WellFirst Health") (July 2023)

Organization named: Dean Health Service Company, LLC (referenced herein as "WellFirst Health") Provisional: identity as filed, not yet matched to the directory
Type as the source lists it: Hacking/IT Incident

What the sources say

HHS OCR breach portal (HIPAA breaches affecting 500 or more individuals) Primary notice

Posted on the HHS Office for Civil Rights breach portal with a submission date of July 28, 2023.

Organization as reported
Dean Health Service Company, LLC (referenced herein as "WellFirst Health"), MN
Entity type as reported
Business Associate
Category as reported
Hacking/IT Incident
Location of information as reported
Network Server
Submission date
July 28, 2023
Observed by BreachRecords
2026-10-18 16:15 UTC (revision 10563, row:1702)
Archived copy
Held in the private archive (provenance)

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 implemented additional administrative, technical, and security safeguards.

The source's own words, from the revision above.

Figures, per source

  • 1,027 individuals affected (total reported), according to the HHS Office for Civil Rights breach portal, source date July 28, 2023, revision observed 2026-10-18.

Each figure is one source's figure with the basis that source gave. Figures from different sources are shown side by side and are not added, averaged or chosen between.

Timeline

Source dates are the dates the sources give. Observation dates are when BreachRecords recorded each revision.

  • Submission date (HHS Office for Civil Rights breach portal)
  • Observed by BreachRecords (revision 10563)
  • Approved by a reviewer

Organizations linked by a reviewer

Archived evidence

  • 3dbc27dd5742e041cc1e7fe18cc669e2901fbd3b86b7007ed27948ff4d406e1f
    text/csv, 5,530,996 bytes, retrieved from HHS Office for Civil Rights breach portal, 2026-10-18 16:15 UTC. Archived privately · Provenance · Source page

Records reflect source filings as of the dates shown. BreachRecords is not a regulator.

Request a correction

A record that disagrees with its source, names the wrong organization or duplicates another is corrected after review. This form is about Breach notice filed by Dean Health Service Company, LLC (referenced herein as "WellFirst Health") (July 2023). We acknowledge every request within two business days. We reply by email.

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