If an individual requires help for drug addiction and dependence and is fortunate enough to have health insurance, many drug rehab facilities in Modesto, CA. accept payment in the form of health insurance and will cooperate with clients to see which types of treatment are covered. Most private health insurance entities cover outpatient and inpatient alcohol and drug rehab, although the timeframe which is covered can vary. Private health insurance will more than likely cover the first 4 weeks of drug and alcohol rehabilitation, but there are clients whose plan is more extensive and could also include a longer stay in a drug treatment center. It is best to seek advice of their insurance company as soon as possible in liaison with the rehabilitation center to establish what is and what is not included by your private health insurance.