HHS OCR report ยท 2011
TriWest Healthcare Alliance Corp. data breach
OCR report facts
- Covered entity
- TriWest Healthcare Alliance Corp.
- Entity type
- Business Associate
- State
- Arizona
- Individuals affected
- 4,500
- Submission date
- Mar 1, 2011
- Type of breach
- Unauthorized Access/Disclosure
- Location of breached information
- Paper/Films
- Business associate present
- Yes
- Status
- Archive (closed)
OCR description
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Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the TriWest Healthcare Alliance Corp. data breach?
The report to HHS OCR lists 4,500 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Mar 1, 2011.
What type of breach was it?
The OCR portal lists the type of breach as Unauthorized Access/Disclosure, with the breached information located in: Paper/Films.
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 TriWest Healthcare Alliance Corp. 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 TriWest Healthcare Alliance Corp..