If an individual requires treatment for drug and alcohol addiction and dependence and is lucky enough to be covered under health insurance, many drug and alcohol rehab centers in Whittier, CA. accept health insurance and will cooperate with clients to find out what is and is not approved. The majority of private health insurance companies will cover outpatient and residential drug and alcohol rehabilitation, although the timeframe which is covered can vary. Private health insurance will more than likely cover the first 30 days of drug rehab, although there are people whose plan is more substantial and could also include a longer stay in a drug treatment facility. It is asked that potential clients seek advice of their plan as soon as possible with the help of their rehab program to figure out what is approved by your private health insurance.