If an addict requires treatment for drug and alcohol addiction and is fortunate enough to be covered through health insurance, most drug rehab facilities in Chester, CA. accept payment in the form of health insurance and will work with potential clients to determine which types of treatment are insured. Many private health insurance entities will cover outpatient and inpatient drug and alcohol treatment, but the timeframe which is considered covered can fluctuate. Private health insurance will more than likely cover the first 30 days of alcohol and drug rehab, but there are people whose plan is more extensive and could also extend to a longer residence in an alcohol and drug treatment center. It is best to speak with their insurance company as soon as possible and to ask for any help as needed from their treatment program to find out what is approved by their private health insurance.