Medicaid is a kind of medical health insurance available for those who are in specific income brackets which qualifies them to receive this government provided insurance coverage. Whether or not somebody qualifies for Medicaid doesn't only depend on income however, and people shouldn't assume they don't qualify just because they make an acceptable income. As an example, individuals who have many dependents may be entitled to Medicaid even when they make what would be considered a fair income. Medicaid may also cover the price of rehab, if a person has been abusing alcohol or drugs and requires rehabilitation. There are many alcohol and drug rehab centers which accept Medicaid, but different states have distinct rules for what types of rehabilitation are covered. Certain states only cover outpatient treatment services for example while other states cover far more intensive rehabilitation say for example a residential stay in long-term alcohol and drug treatment program. If someone is involved with drug abuse and wants help, they could use their Medicaid insurance coverage to get this treatment. If they do not have Medicaid and in addition don't have the money or some other kind of health insurance to pay for rehabilitation, they can see if they qualify for Medicaid and then enroll in an alcohol and drug rehabilitation center that is approved within their state.