If an individual requires treatment for drug addiction in Calexico, CA. and is lucky enough to have health insurance, the majority of drug rehab programs accept health insurance and will work with individuals to discover what treatment services are approved. The majority of private health insurance companies in Calexico, California cover the costs of outpatient and inpatient drug rehabilitation, although the length of time which is included can differ. Private health insurance will most likely cover the first 4 weeks of drug rehab, but there are individuals whose coverage is more extensive and may cover a more long-term length of time in a Calexico, CA. drug rehab facility. It is best to consult with their insurance company directly with the help of their rehab facility to establish what services are included by their private health insurance.