- State
- CA
- Covered entity type
- Healthcare Provider
- Individuals affected
- 5,000
- Business associate present
- No
- Type of breach
- Unauthorized Access/Disclosure
- Location of breached information
- Other
- First seen by InfoSec Signals
- 9/23/2026
- Last seen in OCR export
- 9/23/2026
OCR description
On November 13, 2018, OCR received a breach notification report from San Mateo Medical Center (SMMC). SMMC reported that the breach affected approximately 5,000 individuals. After an internal investigation, SMMC determined that the report was filed in error, the incident did not amount to a breach and, the incident should not have been reported since no breach occurred. Based on this information, OCR closed the case.
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.