If an individual requires treatment for drug addiction in Walnut, California and is fortunate enough to be covered through health insurance, most drug and alcohol rehab programs accept payment in the form of health insurance and will cooperate with individuals to see which treatment programs are approved. A number of private health insurance companies in Walnut cover outpatient and inpatient drug and alcohol rehabilitation, although the length of time which is covered can differ. Private health insurance most often covers the first month of drug and alcohol treatment, although there are people whose insurance coverage is more substantial and can cover a longer length of time in a Walnut, California alcohol and drug rehab facility. It is recommended that individuals seek advice of their insurance company from the get go with the help of their treatment facility to decide what is and what is not included by their private health insurance.