HHS OCR report · 2021
North Oklahoma County Mental Health Center d/b/a NorthCare data breach
OCR report facts
- Covered entity
- North Oklahoma County Mental Health Center d/b/a NorthCare
- Entity type
- Healthcare Provider
- State
- Oklahoma
- Individuals affected
- 128,556
- Submission date
- Jul 21, 2021
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Network Server
- Business associate present
- No
- Status
- Archive (closed)
OCR description
The covered entity (CE), North Oklahoma County Mental Health dba NorthCare, reported that it was the subject of a cyber-attack that affected the protected health information (PHI) of 128,556 individuals. The PHI involved included names, dates of birth, addresses, Social Security and drivers’ license numbers, claims information, diagnoses, lab results, medications, and other treatment information. The CE notified HHS, affected individuals, the media, and provided substitute notice. In response...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the North Oklahoma County Mental Health Center d/b/a NorthCare data breach?
The report to HHS OCR lists 128,556 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Jul 21, 2021.
What type of breach was it?
The OCR portal lists the type of breach as Hacking/IT Incident, with the breached information located in: Network Server.
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 North Oklahoma County Mental Health Center d/b/a NorthCare 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 North Oklahoma County Mental Health Center d/b/a NorthCare.