Medicaid is a type of health insurance which is accessible to people in certain low-income tax brackets. Eligibility for Medicaid depends greatly on income and other circumstances including 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 rehabilitation, and there are many drug and alcohol rehabilitation programs throughout the country which are covered through Medicaid. Most drug rehab programs which are covered through Medicaid may only deliver a limited treatment curriculum and may only provide such treatment on a short term basis, typically 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 reap the full rewards of such a program.