Medicaid is a medical insurance available for individuals who are in specific income brackets which qualifies them to obtain this government funded insurance coverage. Whether somebody is qualified for Medicaid doesn't only depend upon their earnings however, and people shouldn't presume they don't qualify simply because they earn a good income. For example, individuals who have quite a few dependents may be entitled to Medicaid even when they make what would be described as a fair income. Medicaid may also cover the costs of rehab, if someone has been abusing alcohol or drugs and requires rehab. There are many drug and alcohol treatment programs which accept Medicaid, but various states have distinct guidelines for what forms of rehabilitation are covered. Certain states only include outpatient treatment services for instance while other states cover more extensive treatment like a residential stay in long-term drug and alcohol treatment facility. If somebody is involved in drug use and needs help, they could use their Medicaid health coverage to obtain this help. If they don't have Medicaid and in addition don't have the cash or some other type of health insurance to cover rehab, they could find out if they are eligible for a Medicaid and then enroll in a drug and alcohol rehab program that is approved inside their state.