Medicaid is a type of health insurance which is made available to people in certain low-income tax brackets. Eligibility for Medicaid depends greatly on income and other factors including whether or not the person has dependents and if they receive any other assistance. Medicaid may possibly even cover the costs associated with drug or alcohol rehab, and there are many drug treatment centers throughout the country which are covered through Medicaid. Most drug treatment facilities which are covered through Medicaid may only provide a limited treatment curriculum and may only deliver such treatment on a short term basis, typically 30 days or less. People who have Medicaid should research which programs cover the greatest amount of treatment for the most amount of time to acquire the full benefits of a Medicaid rehab program.