Medicaid is a kind of medical insurance available for many people who are in certain income brackets which qualifies them to obtain this government provided insurance coverage. Whether or not an individual is qualified for Medicaid doesn't only depend upon income however, and people shouldn't assume they don't qualify because they earn a good income. For example, people who have a lot of dependents may be entitled to Medicaid even when they make what might certainly be a reasonable income. Medicaid may also cover the expenses of treatment, when someone has been abusing alcohol or drugs and requires rehabilitation. There are many drug and alcohol rehabilitation facilities which accept Medicaid, but different states have different guidelines for what forms of rehabilitation are covered. Some states only include outpatient rehab services for example while other states cover more intensive rehabilitation such as a residential stay in long-term alcohol and drug treatment facility. If anyone is involved in substance abuse and wants help, they are able to use their Medicaid insurance coverage to obtain this treatment. If they don't have Medicaid and also don't have the funds or another type of health insurance to pay for treatment, they can determine if they qualify for Medicaid and then sign up for a drug and alcohol rehabilitation center which is approved inside their state.