HHS OCR report ยท 2019
Choctaw Nation Health Service Authority data breach
OCR report facts
- Covered entity
- Choctaw Nation Health Service Authority
- Entity type
- Healthcare Provider
- State
- Oklahoma
- Individuals affected
- 500
- Submission date
- Sep 27, 2019
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Business associate present
- No
- Status
- Archive (closed)
OCR description
The covered entity (CE), Choctaw Nation Health Service Authority, reported that an employee was the subject of an email phishing scheme that affected the protected health information (PHI) of 500 individuals. The PHI involved included names, Social Security numbers, dates of birth, diagnoses, medications, and other treatment information. The CE notified HHS, the affected individuals, the media, and provided substitute notice. In response to the breach, the CE provided complimentary credit mon...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the Choctaw Nation Health Service Authority data breach?
The report to HHS OCR lists 500 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Sep 27, 2019.
What type of breach was it?
The OCR portal lists the type of breach as Hacking/IT Incident, with the breached information located in: Email.
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 Choctaw Nation Health Service Authority 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 Choctaw Nation Health Service Authority.