HHS OCR report ยท 2023
Regal Medical Group,Lakeside Medical Organization, ADOC Acquisition, & Greater Covina Medical Group data breach
OCR report facts
- Covered entity
- Regal Medical Group,Lakeside Medical Organization, ADOC Acquisition, & Greater Covina Medical Group
- Entity type
- Healthcare Provider
- State
- California
- Individuals affected
- 3,388,856
- Submission date
- Feb 1, 2023
- 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), Regal Medical Group, Inc., Lakeside Medical Organization, A Medical Group, Inc., ADOC Acquisition Co., & Greater Covina Medical Group, Inc., reported that it experienced a ransomware incident that affected the protected health information (PHI) of approximately 3,388,856 individuals who were patients of the CE. The PHI involved included names, addresses, dates of birth, Social Security numbers, health plan member numbers, phone numbers, treatment information, diagnose...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the Regal Medical Group,Lakeside Medical Organization, ADOC Acquisition, & Greater Covina Medical Group data breach?
The report to HHS OCR lists 3,388,856 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Feb 1, 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: 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 Regal Medical Group,Lakeside Medical Organization, ADOC Acquisition, & Greater Covina Medical Group 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 Regal Medical Group,Lakeside Medical Organization, ADOC Acquisition, & Greater Covina Medical Group.