Medicaid is a health insurance available for individuals who are in specific income brackets which qualifies them to receive this government funded insurance. Whether or not someone qualifies for Medicaid doesn't only determined by income however, and people shouldn't assume they don't qualify simply because they make an acceptable income. For instance, people who have quite a few dependents may qualify for Medicaid even if they make an amount be considered a sensible income. Medicaid could also cover the expenses of rehab, if someone has been abusing alcohol or drugs and needs treatment. There are many drug and alcohol treatment programs which accept Medicaid, but various states have distinct guidelines for what kinds of treatment are covered. Some states only cover outpatient rehabilitation services for example while other states cover more extensive rehabilitation like a residential stay in long-term drug rehab center. If somebody is involved with substance abuse and needs help, they can use their Medicaid insurance coverage to get this treatment. If they don't have Medicaid and also don't have enough cash or any other kind of health care insurance to cover rehab, they could find out if they are eligible for a Medicaid and then enroll in an alcohol and drug treatment center that is approved inside their state.