According to officials, staff discovered the clinic had been burglarized upon arriving at work on Oct. 1.
The suspected burglars broke into filing cabinets and a locked room containing the clinic's medical records. Breached information on patients included their names, medical record numbers, addresses, social security numbers, birth dates, and health conditions.
Officials do not believe the burglars, who authorities said stole a television, were interested in obtaining medical records but have notified patients to keep watch for fraudulent use.
"There has been no indication that personal or protected health information has been used by unauthorized individuals, Meaghan Ellis, Chief of Community Health Services and Health Center Director, said in a released statement. "We sincerely regret that this situation occurred."
The clinic's management system accounted and verified 1,370 records after the burglary. A security guard has also been posted at the side during the Adelanto clinic's closing hours.
Anyone suspecting or concerned about fraudulent use of personal information can contact one of the following credit bureaus to request a credit report or to establish credit monitoring: Equifax (800) 525-6285, Experian (888) 397-3742 or TransUnion (800) 680-7289.
Anyone with questions regarding the burglary was asked to contact the Department of Public Health at (888) 589-0010.