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44 disclosed this week · 26,355 on record

Arizona Oncology Associates

Disclosed Mar 5, 2021717 affectedConfirmed

Official notice

The covered entity (CE), Arizona Oncology Associates, reported that an employee lost documents that contained the protected health information (PHI) of 717 individuals. The PHI involved included names, addresses, dates of birth, Social Security numbers, and health insurance information. The CE notified HHS, affected individuals, the media, local law enforcement, and posted substitute notice on its website. Following the breach incident, the CE sanctioned the workforce member and implemented additional administrative and technical safeguards and retrained its staff on safeguarding PHI.

What is known

People affected717 (as reported to HHS)
DisclosedMar 5, 2021
AttackLost or stolen device
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

History of this record
Added2026-09-25
First recordedby backfillSource

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

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