SANTA ANA, Calif. — A former California physician assistant has been convicted of federal drug-trafficking charges for allegations that she wrote prescriptions for narcotics without a medical purpose.

The Orange County Register reports ( ) that a jury on Monday found 32-year-old Kaitlyn Phuong Nguyen guilty of illegally distributing oxycodone, methadone and alprazolam in 2012. Prosecutors say four people had died of drug overdoses after receiving prescriptions from Nguyen.

Dr. Victor Boon Huat Siew, who ran Fountain Valley medical clinic during the crimes, was sentenced last week to nearly six years in prison after pleading guilty to two counts of illegal distribution of a controlled substance.

Prosecutors said the doctor and his assistant issued prescriptions without a medical need in exchange for cash and insurance payments.

Information from: The Orange County Register,

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