Medicaid is a form of medical insurance available for many people who are in certain income brackets which qualifies them to receive this government funded insurance coverage. Whether someone qualifies for Medicaid doesn't only depend on their earnings however, and people shouldn't assume they don't qualify because they earn a good income. For instance, people who have quite a few dependents may be entitled to Medicaid regardless of whether they earn what would be considered a sensible income. Medicaid also can cover the expenses of treatment, when someone has been abusing drugs or alcohol and needs rehabilitation. There are many alcohol and drug rehab facilities which accept Medicaid, but various states have different rules for what sorts of rehabilitation are covered. Certain states only cover outpatient rehab services for instance while other states cover more intensive treatment say for example a residential stay in long-term drug rehab program. If a person is involved in substance abuse and desires help, they can use their Medicaid health coverage to obtain this treatment. If they don't have Medicaid plus don't have the cash or another kind of health insurance to cover treatment, they could find out if they qualify for Medicaid and then sign up for an alcohol and drug rehab program that is approved within their state.