Medicaid is a medical insurance available for those who are in certain income brackets which qualifies them to receive this government funded insurance. Whether someone qualifies for Medicaid doesn't only depend upon income however, and people shouldn't presume they don't qualify simply because they earn an acceptable income. As an example, people who have many dependents may be entitled to Medicaid regardless of whether they earn an amount be considered a sensible income. Medicaid can also cover the expense of rehab, if someone has been abusing drugs or alcohol and requires rehabilitation. There are numerous drug treatment centers which accept Medicaid, but different states have distinct rules for what forms of rehab are covered. Some states only include outpatient rehabilitation services for example while other states cover far more extensive rehab say for example a residential stay in long-term drug and alcohol treatment facility. If someone is involved with drug abuse and needs help, they could use their Medicaid insurance coverage to obtain this help. If they don't have Medicaid and in addition don't have the money or some other kind of health insurance to cover rehabilitation, they can check if they qualify for Medicaid and then sign up for a drug treatment program which is approved within their state.