If someone is in need of treatment for drug addiction and is fortunate enough to be covered under health insurance, many drug rehabilitation facilities in Monterey Park, California will accept any type of health insurance and will liaise with clients to find out which rehab services are approved. Many private health insurance companies will cover outpatient and residential alcohol and drug rehab, although the time in rehab which is considered covered can vary. Private health insurance most often covers the first month of drug rehab, although there are persons whose insurance is more extensive and can cover a more significant residence in a drug and alcohol treatment program. It is best to consult with their plan as soon as possible in liaison with the treatment program to find out what is and what is not included by their private health insurance.