If someone is in need of treatment for drug addiction and is lucky enough to be covered through health insurance, many drug treatment centers in Vacaville, CA. accept payment in the form of health insurance and will cooperate with potential clients to see which rehab services are insured. The majority of private health insurance companies cover outpatient and residential drug rehab, but the time in rehab which is covered can fluctuate. Private health insurance will typically cover the first 4 weeks of drug and alcohol treatment, but there are individuals whose plan is more extensive and could also cover a more long-term time in a drug rehabilitation facility. It is recommended that individuals speak with their insurance company as soon as possible in liaison with the treatment program to determine what is and what is not approved by their private health insurance.