HHS OCR report ยท 2021
Memorial Hermann Health System data breach
OCR report facts
- Covered entity
- Memorial Hermann Health System
- Entity type
- Healthcare Provider
- State
- Texas
- Individuals affected
- 1,893
- Submission date
- Mar 31, 2021
- Type of breach
- Unauthorized Access/Disclosure
- Location of breached information
- Network Server
- Business associate present
- Yes
- Status
- Archive (closed)
OCR description
The covered entity (CE), Memorial Hermann Health System, reported that an employee of its business associate (BA) uploaded the protected health information (PHI) of 1,893 individuals to the Internet; the data was then viewable by the public. The PHI involved included names, addresses, dates of birth, Social Security numbers, diagnoses, claims and health insurance information, and other treatment information. The CE notified HHS, affected individuals, the media, and provided substitute notice....
Text as published on the HHS OCR breach portal.
Other reports by Memorial Hermann Health System
| Covered entity | State | Entity type | Individuals | Submitted | Type of breach | Status |
|---|---|---|---|---|---|---|
| Memorial Hermann Health System | TX | Healthcare Provider | 507 | Jul 2, 2019 | Unauthorized Access/Disclosure | Archive (closed) |
| Memorial Hermann Health System | TX | Healthcare Provider | 604 | May 13, 2019 | Unauthorized Access/Disclosure | Archive (closed) |
| Memorial Hermann Health System | TX | Healthcare Provider | 10,604 | Aug 29, 2014 | Unauthorized Access/Disclosure | Archive (closed) |
Frequently asked questions
How many people were affected by the Memorial Hermann Health System data breach?
The report to HHS OCR lists 1,893 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Mar 31, 2021.
What type of breach was it?
The OCR portal lists the type of breach as Unauthorized Access/Disclosure, 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 Memorial Hermann Health System 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 Memorial Hermann Health System.