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Regulator-posted notice

Breach notice filed by Western Washington Medical Group (October 2023)

Organization named: Western Washington Medical Group 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 OCR breach portal (HIPAA breaches affecting 500 or more individuals) with a submission date of Oct. 26, 2023.

Organization as reported
Western Washington Medical Group, MS
Entity type as reported
Healthcare Provider
Category as reported
Hacking/IT Incident
Location of information as reported
Network Server
Submission date
Oct. 26, 2023
Observed by BreachRecords
2026-10-18 16:15 UTC (revision 10393, row:1532)
Archived copy
Held in the private archive (provenance)

The covered entity (CE), Western Washington Medical Group, reported that it was the subject of a ransomware attack that affected the protected health information (PHI) of 350,863 individuals. The PHI involved included names, addresses, Social Security numbers, dates of birth, claims information, and diagnoses. The CE notified HHS, the affected individuals, the media, and provided substitute notice. In response to the breach, the CE provided complimentary credit monitoring services and implemented additional administrative, technical, and security safeguards. Staff were retrained on the requirement to protect and secure PHI.

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

Figures, per source

  • 350,863 individuals affected (total reported), as reported by the HHS OCR breach portal (HIPAA breaches affecting 500 or more individuals), source date Oct. 26, 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 at the HHS OCR breach portal (HIPAA breaches affecting 500 or more individuals)
  • Observed by BreachRecords (revision 10393)
  • Approved by a reviewer

Organizations linked by a reviewer

  • Western Washington Medical Group Named as the covered entity Provisional: identity as filed, not yet matched to the directory Linked 2026-10-19, method provisional.

Archived evidence

  • 3dbc27dd5742e041cc1e7fe18cc669e2901fbd3b86b7007ed27948ff4d406e1f
    text/csv, 5,530,996 bytes, from the HHS OCR breach portal (HIPAA breaches affecting 500 or more individuals), retrieved 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.

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