Federal narcotics agents from the Drug Enforcement Administration raided several Kaiser Permanente pharmacies along the West Coast Sept. 18, according to The Oregonian.
The inquiry is part of a Los Angeles-based investigation. Federal narcotic officers from the agency's diversion control office used administrative inspection warrants to search records to determine if legitimately made controlled substances were being diverted for illicit drug use.
"We are fully cooperating with the DEA to provide the agency with the information they are seeking. As always, we are committed to complying with all state and federal regulations and ensuring the safety of our patients and members," Mike Foley, a spokesperson for Kaiser Permanente, told The Oregonian.
It is unclear how many warrants were served, but a pharmacy in Portland, Ore., Woodland Hills, Calif., and Riverside, Calif., were searched, according to California news station KTLA 5.