Medicaid is a type of health insurance which is offered to people in certain low-income tax brackets. Eligibility for Medicaid is dependent on income and other circumstances such as whether or not the person has dependents and if they receive any other financial assistance. Medicaid may even cover the costs associated with drug or alcohol treatment, and there are a lot of drug and alcohol rehabilitation centers throughout the country which are covered through Medicaid. Most drug rehab facilities which are covered through Medicaid may only provide a limited treatment curriculum and may only supply such treatment on a short term basis, usually 30 days or less. People who have Medicaid should explore which programs cover the greatest amount of treatment for the most amount of time to reap the full benefits of a Medicaid rehab program.