Medicaid is a form of medical health insurance available for those who are in certain income brackets which qualifies them to acquire this government provided insurance coverage. Whether someone qualifies for Medicaid doesn't only depend upon income however, and people shouldn't presume they don't qualify simply because they earn a good income. As an example, men and women who have quite a few dependents may be eligible for Medicaid even though they make what would be considered a reasonable income. Medicaid can also cover the expense of rehab, if someone has been abusing drugs or alcohol and needs treatment. There are lots of alcohol and drug rehab programs which accept Medicaid, but different states have different rules for what types of treatment are covered. Some states only cover outpatient treatment services for example while other states cover far more extensive rehab like a residential stay in long-term drug and alcohol rehabilitation program. If a person is involved with drug abuse and desires help, they are able to use their Medicaid insurance coverage to get this help. If they do not have Medicaid plus don't have the funds or some other form of health care insurance to pay for rehab, they can determine if they qualify for Medicaid and then sign up for a drug rehab program that is approved in their state.