HHS OCR report ยท 2026
One Medical Group, Inc. data breach
One Medical Group, Inc., a healthcare provider in California, reported a breach affecting 153,174 individuals to HHS OCR on Jul 17, 2026.
OCR report facts
- Covered entity
- One Medical Group, Inc.
- Entity type
- Healthcare Provider
- State
- California
- Individuals affected
- 153,174
- Submission date
- Jul 17, 2026
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Network Server
- Business associate present
- No
- Status
- Under investigation
Frequently asked questions
How many people were affected by the One Medical Group, Inc. data breach?
The report to HHS OCR lists 153,174 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Jul 17, 2026.
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?
Yes. The OCR portal lists this report as under investigation.
Is a breach notice letter from One Medical Group, Inc. 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 One Medical Group, Inc..