Medicaid is a type of health insurance which is offered to people in certain low-income tax brackets. Eligibility for Medicaid depends greatly 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 rehab, and there are many drug and alcohol treatment facilities throughout the country which are covered through Medicaid. Many drug rehab facilities which are covered through Medicaid may only provide a limited treatment curriculum and may only provide such treatment on a short term basis, usually 30 days or less. People who have Medicaid should look for which programs cover the greatest amount of treatment for the most amount of time to acquire the full rewards of a Medicaid rehab program.