Medicaid is a type of medical health insurance available for individuals who are in certain income brackets which qualifies them to obtain this government provided insurance. Whether or not someone is qualified for Medicaid doesn't only depend upon their earnings however, and individuals shouldn't assume they don't qualify because they make a fair income. By way of example, people who have many dependents may qualify for Medicaid even when they make what might be described as a fair income. Medicaid can also cover the expenses of rehab, if a person has been abusing alcohol or drugs and requires treatment. There are lots of drug and alcohol rehabilitation programs which accept Medicaid, but different states have distinct rules for what forms of rehabilitation are covered. Certain states only cover outpatient rehab services for example while other states cover far more extensive treatment such as a residential stay in long-term drug and alcohol rehabilitation facility. If somebody is involved in drug use and desires help, they are able to use their Medicaid health coverage to get this treatment. If they don't have Medicaid and also don't have the funds or any other type of medical insurance to cover rehab, they could find out if they qualify for Medicaid and then sign up for an alcohol and drug treatment program which is approved in their state.