HHS OCR report ยท 2023
Maimonides Medical Center data breach
OCR report facts
- Covered entity
- Maimonides Medical Center
- Entity type
- Healthcare Provider
- State
- New York
- Individuals affected
- 33,000
- Submission date
- Jun 1, 2023
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Network Server
- Business associate present
- No
- Status
- Archive (closed)
OCR description
The covered entity (CE), Maimonides Medical Center, reported that it experienced a cyber-attack that compromised the protected health information (PHI) of 33,000 individuals. The PHI involved included names, addresses, dates of birth, Social Security numbers, diagnoses, lab results, medications, and other treatment information. The CE notified HHS, affected individuals, the media, and provided substitute notice. In response to the breach, the CE provided complimentary credit monitoring servic...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the Maimonides Medical Center data breach?
The report to HHS OCR lists 33,000 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Jun 1, 2023.
What type of breach was it?
The OCR portal lists the type of breach as Hacking/IT Incident, with the breached information located in: Network Server.
Is the investigation still open?
No. The report is in the OCR portal archive, which holds reports where OCR has closed its review.
Is a breach notice letter from Maimonides Medical Center legitimate?
This site cannot verify letters. Check the sender against the organisation's official website and the HHS OCR breach portal, and avoid calling numbers or clicking links only listed in an unexpected message. See our guide on what to do after a data breach notice.
Source: HHS OCR Breach Portal, OCR export October 2026. Network USA is not affiliated with HHS or Maimonides Medical Center.