If someone must receive treatment for drug addiction in Castroville, CA. and is fortunate enough to be covered through health insurance, most drug rehab facilities work with those who have health insurance and will work with men and women to discover what treatment services are approved. The majority of private health insurance companies in Castroville, California cover outpatient and inpatient drug and alcohol treatment, but the time which is included can vary. Private health insurance will more than likely cover the first 4 weeks of drug treatment, but there are individuals whose coverage is more substantial and can include a longer length of time in a Castroville, CA. drug treatment program. It is best to their plan directly in liaison with the rehabilitation center to establish what is and what is not approved by their private health insurance.