HHS OCR report · 2017
Capital Nephrology data breach
OCR report facts
- Covered entity
- Capital Nephrology
- Entity type
- Healthcare Provider
- State
- Maryland
- Individuals affected
- 4,000
- Submission date
- May 2, 2017
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Electronic Medical Record, Network Server
- Business associate present
- No
- Status
- Archive (closed)
OCR description
The covered entity’s (CE) electronic medical records (EMR) system and backup computer server were affected by ransomware. The breach included the protected health information (PHI) of 4,000 individuals and included names, as well as clinical information. The CE provided breach notification to HHS, affected individuals, and the media. Following the breach, the CE upgraded its EMR system to a cloud-based, encrypted EMR system with additional security features, and implemented additional antivi...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the Capital Nephrology data breach?
The report to HHS OCR lists 4,000 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on May 2, 2017.
What type of breach was it?
The OCR portal lists the type of breach as Hacking/IT Incident, with the breached information located in: Electronic Medical Record, 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 Capital Nephrology 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 Capital Nephrology.