Narconon of Southern California Narconon San Diego is an extended-stay residential treatment program located in Warner Springs that offers substance abuse treatment and other drug rehab services. Narconon of Southern California Narconon San Diego in San Mateo has a special program for men, in addition to general drug and alcohol rehab. Narconon of Southern California Narconon San Diego accepts self payment and private health insurance as payment for drug and alcohol rehab services. Narconon of Southern California Narconon San Diego offers drug treatment programs in American Sign Language.