HHS OCR report ยท 2023
Greater Dallas Healthcare Enterprises data breach
OCR report facts
- Covered entity
- Greater Dallas Healthcare Enterprises
- Entity type
- Healthcare Provider
- State
- Texas
- Individuals affected
- 143,833
- Submission date
- Sep 29, 2023
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Business associate present
- No
- Status
- Archive (closed)
OCR description
The covered entity (CE), Tenet Healthcare, on behalf of Greater Dallas Healthcare Enterprises, reported that an employee of the CE experienced a phishing attack that affected the protected health information (PHI) of 143,833 individuals. The PHI involved included names, addresses, dates of birth, claims and treatment information, diagnoses, and other treatment information. The CE notified HHS, the affected individuals, the media, and provided substitute notice. In response to the breach, the ...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the Greater Dallas Healthcare Enterprises data breach?
The report to HHS OCR lists 143,833 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Sep 29, 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: 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 Greater Dallas Healthcare Enterprises 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 Greater Dallas Healthcare Enterprises.