HHS OCR report · 2018
Kaiser Foundation Health Plan of Colorado data breach
OCR report facts
- Covered entity
- Kaiser Foundation Health Plan of Colorado
- Entity type
- Health Plan
- State
- Colorado
- Individuals affected
- 900
- Submission date
- Aug 3, 2018
- Type of breach
- Unauthorized Access/Disclosure
- Location of breached information
- Paper/Films
- Business associate present
- No
- Status
- Archive (closed)
OCR description
On June 5, 2018, Kaiser Foundation Health Plan of Colorado, the covered entity (CE), discovered that due to an employee error in performing a mail merge, approximately 900 members’ names were mismatched with other members' addresses. The types of protected health information (PHI) involved in the incident included members' names and the names of their former primary care physicians. The CE provided breach notification to affected individuals, the media, and HHS. Following the breach, the C...
Text as published on the HHS OCR breach portal.
Other reports by Kaiser Foundation Health Plan of Colorado
| Covered entity | State | Entity type | Individuals | Submitted | Type of breach | Status |
|---|---|---|---|---|---|---|
| Kaiser Foundation Health Plan of Colorado | CO | Health Plan | 11,551 | Aug 12, 2014 | Other, Unauthorized Access/Disclosure | Archive (closed) |
Frequently asked questions
How many people were affected by the Kaiser Foundation Health Plan of Colorado data breach?
The report to HHS OCR lists 900 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Aug 3, 2018.
What type of breach was it?
The OCR portal lists the type of breach as Unauthorized Access/Disclosure, with the breached information located in: Paper/Films.
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 Kaiser Foundation Health Plan of Colorado 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 Kaiser Foundation Health Plan of Colorado.