Anesthesia Services Of San Joaquin
Disclosed Sep 23, 20224 years ago43,924 affectedConfirmed
The covered entity (CE), Anesthesia Services of San Joaquin, reported that its business associate (BA) experienced a ransomware attack that affected the protected health information (PHI) of 43,924 CE patients. The PHI involved included names, addresses, dates of birth, drivers’ license and Social Security numbers, claims and financial information, medications prescribed, and other treatment information. The CE notified HHS, affected individuals, the media, and provided substitute notice. In its mitigation efforts, the BA strengthened its administrative, technical, and security safeguards.
What is known
| People affected | 43,924 (as reported to HHS) |
|---|---|
| Disclosed | Sep 23, 2022 |
| Happened | Jul 9, 2022 |
| Attack | Hacking |
| Data exposed | Names, Health |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| California Attorney General breach notice: Anesthesia Services Of San Joaquinoag.ca.gov · Official notice | Official notice |
| HHS OCR breach report (archive, resolved): Anesthesia Services of San Joaquin (Healthcare Provider, NY)ocrportal.hhs.gov · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| HHS archivetotal | Sep 23, 2022 | 43,924 |
| California AGresidents of CA | Oct 25, 2022 |
History of this record
- 2026-09-25 · sector: other to health · backfill source
- 2026-09-25 · attack: unknown to hacking · backfill source
- 2026-09-25 · data_types: [] to ["names","health"] · backfill source
- 2026-09-25 · records_basis: empty to hhs · backfill source
- 2026-09-25 · records: empty to 43924 · backfill source
- 2026-09-25 · disclosed: 2022-10-25 to 2022-09-23 · backfill source
- 2026-09-25 · summary: empty to The covered entity (CE), Anesthesia Services of San Joaquin, reported that its business associate (BA) experienced a ransomware attack that affected the protected health information (PHI) of 43,924 CE patients. The PHI involved included nam · backfill source
- 2026-09-25 · added · backfill source
First seen 2026-09-25 (California AG), confirmed by California AG. Record counts are as reported. Not legal advice.