Medicaid is a kind of health care insurance available for many people who are in certain income brackets which qualifies them to receive this government funded insurance. Whether someone qualifies for Medicaid doesn't only determined by income however, and people shouldn't presume they don't qualify because they earn a good income. As an example, people who have quite a few dependents may qualify for Medicaid even when they earn what might be considered a fair income. Medicaid could also cover the expenses of rehab, when someone has been abusing alcohol or drugs and requires rehab. There are lots of drug treatment facilities which accept Medicaid, but various states have distinct rules for what kinds of rehabilitation are covered. Some states only cover outpatient rehab services for instance while other states cover far more extensive treatment say for example a residential stay in long-term alcohol and drug rehabilitation program. If anyone is involved with drug abuse and needs help, they are able to use their Medicaid insurance coverage to obtain this help. If they don't have Medicaid plus don't have the funds or any other form of medical health insurance to pay for rehab, they could see if they are eligible for a Medicaid and then enroll in a drug rehab center which is approved in their state.