The Los Angeles County district attorney's office says Dykstra and two other men were charged Monday with grand theft auto, identity theft and other crimes. He faces up to 12 years in prison if convicted.
Prosecutors claim Dykstra, his accountant and a friend leased three high-end cars from a Southern California dealership this year by providing phony information and claiming credit through a phony business.
Police who arrested Dykstra at his Los Angeles home in April allegedly found cocaine, Ecstasy and synthetic human growth hormone.
Dykstra tells the Daily News of New York that he's not guilty. It's not immediately clear whether he has an attorney.
Dykstra's charged with federal bankruptcy fraud in an earlier case.