Medicaid is a medical insurance available for many people who are in certain income brackets which qualifies them to obtain this government funded insurance. Whether someone qualifies for Medicaid doesn't only determined by their earnings however, and people shouldn't presume they don't qualify just because they earn a fair income. As an example, people who have many dependents may be entitled to Medicaid even when they make what would be described as a fair income. Medicaid may also cover the price of rehabilitation, when someone has been abusing drugs or alcohol and needs treatment. There are many drug rehab facilities which accept Medicaid, but different states have different rules for what kinds of rehabilitation are covered. Certain states only include outpatient treatment services for instance while other states cover far more extensive treatment such as a residential stay in long-term alcohol and drug rehabilitation center. If someone is involved with drug abuse and desires help, they could use their Medicaid health coverage to acquire this treatment. If they don't have Medicaid and in addition don't have the funds or any other kind of medical health insurance to pay for treatment, they can check if they qualify for Medicaid and then sign up for an alcohol and drug rehabilitation program that is approved in their state.