If someone must receive treatment for drug addiction in Mill Valley, California and is lucky enough to have some type of health insurance, the majority of drug rehab facilities accept health insurance and will cooperate with men and women to see which treatment programs are covered. The majority of private health insurance entities in Mill Valley cover the costs of outpatient and inpatient drug and alcohol treatment, although the time which is included can differ. Private health insurance will most likely cover the first 4 weeks of drug rehab, although there are people whose insurance coverage is more substantial and can include a longer length of time in a Mill Valley, California drug and alcohol rehabilitation center. It is best to seek advice of their insurance company directly in liaison with the rehabilitation facility to determine what is approved by their private health insurance.