If someone is in need of treatment for drug addiction in Calistoga, California and is lucky enough to be covered through health insurance, a great number of drug and alcohol treatment facilities work with those who have health insurance and will work with clients to determine which treatment programs are covered. A number of private health insurance companies in Calistoga cover outpatient and inpatient drug and alcohol rehabilitation, but the timeframe which is covered can vary. Private health insurance will most likely cover the first 4 weeks of alcohol and drug treatment, although there are individuals whose plan is more substantial and may include a longer stay in a Calistoga, California alcohol and drug rehabilitation center. It is best to their insurance company directly in liaison with the rehabilitation program to decide what is and what is not covered by their private health insurance.