HHS OCR report · 2024
Dignity Health Lassen Medical Clinic data breach
OCR report facts
- Covered entity
- Dignity Health Lassen Medical Clinic
- Entity type
- Healthcare Provider
- State
- California
- Individuals affected
- 64,946
- Submission date
- Dec 23, 2024
- 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), Dignity Health Lassen Medical Clinic, reported that it experienced a ransomware incident that affected the protected health information (PHI) of 64,946 individuals. The PHI involved included names, addresses, dates of birth, social security numbers, drivers’ license numbers, and financial and health insurance information. The CE notified HHS, affected individuals, and the media. In response to the breach, the CE implemented additional administrative, technical, and se...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the Dignity Health Lassen Medical Clinic data breach?
The report to HHS OCR lists 64,946 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Dec 23, 2024.
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 Dignity Health Lassen Medical Clinic 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 Dignity Health Lassen Medical Clinic.