Medicaid is a type of health insurance available for those who are in specific income brackets which qualifies them to obtain this government provided insurance coverage. Whether or not someone qualifies for Medicaid doesn't only depend upon their earnings however, and people shouldn't assume they don't qualify because they make a good income. For instance, people who have quite a few dependents may be entitled to Medicaid even when they earn what would certainly be a fair income. Medicaid also can cover the expense of rehab, if a person has been abusing drugs or alcohol and requires rehab. There are many drug and alcohol treatment programs which accept Medicaid, but various states have distinct rules for what forms of rehab are covered. Some states only include outpatient rehabilitation services for example while other states cover more extensive rehab like a residential stay in long-term alcohol and drug treatment center. If somebody is involved in substance abuse and needs help, they can use their Medicaid insurance coverage to obtain this treatment. If they don't have Medicaid and in addition don't have the cash or another kind of health insurance to cover treatment, they can check if they are eligible for a Medicaid and then sign up for a drug and alcohol rehabilitation center which is approved inside their state.