HHS OCR report ยท 2016
CalOptima data breach
OCR report facts
- Covered entity
- CalOptima
- Entity type
- Health Plan
- State
- California
- Individuals affected
- 1,000
- Submission date
- Aug 22, 2016
- Type of breach
- Unauthorized Access/Disclosure
- Location of breached information
- Other Portable Electronic Device
- Business associate present
- No
- Status
- Archive (closed)
OCR description
An employee of CalOptima, the covered entity (CE), impermissibly copied data files containing the protected health information (PHI) of patients to an unauthorized electronic mobile storage device (a universal serial bus (USB)) on her last days of employment with the CE. The CE discovered the breach through its data loss prevention system. The breach affected approximately 15,800 individuals. The types of PHI involved included full names, addresses, dates of birth, claims information, diag...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the CalOptima data breach?
The report to HHS OCR lists 1,000 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Aug 22, 2016.
What type of breach was it?
The OCR portal lists the type of breach as Unauthorized Access/Disclosure, with the breached information located in: Other Portable Electronic Device.
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 CalOptima 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 CalOptima.