Gardner Health Services

Disclosed Apr 1, 202526,000 affectedConfirmed

The covered entity (CE), Gardner Health Services, reported that a subcontractor of its business associate (BA) experienced a cyberattack that compromised the protected health information (PHI) of 6,197 individuals. The PHI involved includes names, addresses, dates of birth, Social Security numbers, health insurance information, and treatment information. The CE notified HHS, affected individuals, the media, and published substitute notice on its website. The CE provided free credit monitoring to the affected individuals. OCR provided technical assistance to the CE regarding the HIPAA Rules.

What is known

People affected	26,000 (as reported to HHS)
Disclosed	Apr 1, 2025
Attack	Insider
Data exposed	NamesHealth
Sector	Healthcare · US
Status	Confirmed

Sources

Official noticeoag.ca.gov

California Attorney General breach notice: Gardner Health Services

Official noticeocrportal.hhs.gov

HHS OCR breach report (archive, resolved): Gardner Health Services (Healthcare Provider, CA)

Notices filed

TotalApr 1, 2025

HHS archive26,000 people

TotalDec 22, 2025

HHS archive6,197 people

Residents of CADec 23, 2025

California AGCount not stated

History of this record

records2026-09-25

6197 to 26000by backfillSource

disclosed2026-09-25

2025-12-22 to 2025-04-01by backfillSource

attack2026-09-25

unknown to insiderby backfillSource

data_types2026-09-25

[] to ["names","health"]by backfillSource

records_basis2026-09-25

empty to hhsby backfillSource

records2026-09-25

empty to 6197by backfillSource

disclosed2026-09-25

2025-12-23 to 2025-12-22by backfillSource

summary2026-09-25

empty to The covered entity (CE), Gardner Health Services, reported that a subcontractor of its business associate (BA) experienced a cyberattack that compromised the protected health information (PHI) of 6,197 individuals. The PHI involved includesby backfillSource

Added2026-09-25

First recordedby backfillSource

First seen 2026-09-25 (California AG), confirmed by California AG. Record counts are as reported. Not legal advice.

Everything about Gardner Health Services