Back to the register

Centrelake Medical Group, Inc.

ArchivedSubmitted 04/16/2019
State
CA
Covered entity type
Healthcare Provider
Individuals affected
197,661
Business associate present
No
Type of breach
Hacking/IT Incident
Location of breached information
Network Server
First seen by InfoSec Signals
9/23/2026
Last seen in OCR export
9/23/2026

OCR description

Centrelake Medical Group, Inc., a business associate (BA), reported that it was the victim of cyber-attack involving ransomware that affected the protected health information (PHI) of 197,661 individuals. The PHI involved included names, addresses, phone numbers, drivers’ license information, Social Security numbers, claims information, diagnoses/conditions, and treatment information. The BA notified HHS, affected covered entities, affected individuals, the media, and provided substitute notice. The BA also provided complimentary credit monitoring and identity restoration services to affected individuals. In its mitigation efforts, the BA implemented additional administrative, technical, and security safeguards to better protect its PHI. During the investigation, OCR provided the BA with technical assistance regarding its security management process.

Change history

  • 9/23/2026Added to OCR's archive list

Source: HHS OCR Breach Portal, U.S. Department of Health and Human Services, Office for Civil Rights about this source

Records are reproduced as published; entity names and figures are OCR's.

Your cookie choices
We use essential cookies to run this site, and, only with your consent, an advertising cookie from Google to measure whether our ads lead to sign-ups and subscriptions. See our for details.