Medicaid is a kind of medical insurance available for many people who are in specific income brackets which qualifies them to acquire this government funded insurance. Whether somebody qualifies for Medicaid doesn't only depend on income however, and individuals shouldn't assume they don't qualify simply because they make a reasonable income. For example, people who have many dependents may be eligible for Medicaid even if they earn what might be considered a reasonable income. Medicaid can also cover the price of treatment, when someone has been abusing alcohol or drugs and requires rehabilitation. There are numerous drug rehab facilities which accept Medicaid, but various states have different rules for what kinds of rehab are covered. Some states only include outpatient treatment services for example while other states cover more extensive rehabilitation like a residential stay in long-term alcohol and drug rehab program. If somebody is involved in substance abuse and needs help, they are able to use their Medicaid insurance coverage to acquire this treatment. If they don't have Medicaid and also don't have enough cash or some other kind of health insurance to cover treatment, they can check if they are eligible for a Medicaid and then enroll in a drug and alcohol treatment center that is approved in their state.