• BREAKING NEWS ABC shows live and on-demand -- Download the WATCH ABC app!

Kaiser Permanente in Anaheim missing info on 49K patients

A Kaiser Permanente facility is seen in this undated file photo.

December 11, 2013 12:00:00 AM PST
A computer flash drive containing the medical records of 49,000 Kaiser Permanente patients has gone missing from a facility in Anaheim, officials said Tuesday.

The drive containing patient names, birth dates and medication information was last seen in a secure area of the nuclear medicine department at the Anaheim location in September. The drive may have simply been misplaced, officials said.

The health care provider says no social security numbers were stored on the drive, and criminal activity is not believed to be involved.

Patients were notified of the incident last week and are being encouraged to review their medical statements.

The Associated Press contributed to this report.