Oak Valley Hospital District
Disclosed Sep 15, 2023284,629 affectedConfirmed
Oak Valley Hospital District, the covered entity (CE), reported that it experienced a cyber-attack that compromised the protected health information (PHI) of 284,629 individuals. The PHI involved included names, addresses, dates of birth, Social Security numbers, health insurance information, diagnoses, lab results, medications, and claims information. The CE notified HHS, affected individuals, the media, and posted substitute notice on its website. In response to the breach and OCR’s investigation, the CE revised its policies and procedures, retrained its workforce members, and implemented additional technical safeguards.
What is known
| People affected | 284,629 (as reported to HHS) |
|---|---|
| Disclosed | Sep 15, 2023 |
| Happened | Apr 21, 2023 |
| Attack | Hacking |
| Data exposed | NamesHealth |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
Notices filed
History of this record
First seen 2026-09-25 (California AG), confirmed by California AG. Record counts are as reported. Not legal advice.