If an individual must receive treatment for drug and alcohol addiction and is fortunate enough to have health insurance, most drug treatment centers in San Quentin, California accept health insurance and will work with potential clients to determine which rehab services are approved. Many private health insurance companies will cover outpatient and residential drug treatment, although the timeframe which is considered covered can vary. Private health insurance most often covers the first month of drug and alcohol treatment, but there are persons whose plan is more extensive and can extend to a more long-term time in an alcohol and drug treatment program. It is best to speak with their insurance company as soon as possible and to ask for any help as needed from their rehab program to find out which services may be included by their private health insurance.