LOS ANGELES -- More than 1,000 patients of Cedars-Siani Medical Center may have had personal information taken by a former employee, who allegedly used their identities to defraud insurance companies.

A search of the home of James Allen Wilson, 44, turned up the patients' information, the hospital's chief financial officer said in a letter to the affected persons last week.

In the letter, prosecutors said Wilson set up a fake company. He apparently used the names of actual workers' compensation beneficiaries to submit claims for services that were never performed at the fictitious lab, the letter said. The insurers sent payments by check to a post office box that Wilson set up, the letter said.

Wilson was arrested Nov. 6. He pleaded not guilty to identity theft, insurance fraud, grand theft and other charges.

The district attorney's office estimates that Wilson nabbed at least $69,000 in the scheme, but their investigation into ongoing.

Wilson is currently in jail in lieu of $895,000 bail.

Wilson worked in Cedars-Sinai's workers' compensation accounts department from January 2003 and until March 2007, when he left the hospital for reasons unrelated to the case, Cedars-Sinai spokeswoman Elise Anderson said.

At UCLA Medical Center, at least 165 staff members have been disciplined for improperly accessing the files of more than 1,000 patients, including California First Lady Maria Shriver, actress Farrah Fawcett and singer Britney Spears.