Medicaid is a form of medical health insurance available for those who are in certain income brackets which qualifies them to acquire this government funded insurance. Whether a person qualifies for Medicaid doesn't only depend upon income however, and people shouldn't presume they don't qualify just because they earn a reasonable income. As an example, people who have a lot of dependents may be entitled to Medicaid even though they make what might certainly be a reasonable income. Medicaid also can cover the costs of rehab, if someone has been abusing drugs or alcohol and requires treatment. There are numerous drug and alcohol rehab programs which accept Medicaid, but different states have distinct rules for what sorts of treatment are covered. Some states only cover outpatient rehab services for example while other states cover more extensive rehab say for example a residential stay in long-term drug and alcohol rehab center. If someone is involved with drug abuse and desires help, they can use their Medicaid health coverage to acquire this treatment. If they don't have Medicaid and in addition don't have enough cash or some other type of medical health insurance to pay for rehab, they could find out if they are eligible for a Medicaid and then sign up for a drug and alcohol treatment facility which is approved in their state.