Medicaid is a health care insurance available for those who are in specific income brackets which qualifies them to obtain this government funded insurance coverage. Whether or not someone is qualified for Medicaid doesn't only depend on their earnings however, and individuals shouldn't assume they don't qualify just because they make an acceptable income. For example, people who have many dependents may be eligible for Medicaid even though they make what can certainly be a reasonable income. Medicaid could also cover the expenses of treatment, when someone has been abusing drugs or alcohol and requires rehabilitation. There are many drug and alcohol rehabilitation facilities which accept Medicaid, but different states have different guidelines for what forms of rehabilitation are covered. Certain states only cover outpatient rehab services for example while other states cover far more intensive treatment like a residential stay in long-term drug and alcohol rehab program. If somebody is involved with substance abuse and needs help, they're able to use their Medicaid health coverage to acquire this treatment. If they don't have Medicaid plus don't have enough cash or some other form of medical health insurance to cover treatment, they can find out if they qualify for Medicaid and then sign up for an alcohol and drug rehabilitation facility which is approved in their state.