Medicaid is a type of health insurance available for many people who are in specific income brackets which qualifies them to acquire this government provided insurance coverage. Whether or not somebody is qualified for Medicaid doesn't only depend on income however, and people shouldn't assume they don't qualify because they make a fair income. As an example, people who have many dependents may be eligible for Medicaid even when they make what would be described as a fair income. Medicaid also can cover the expense of treatment, if a person has been abusing alcohol or drugs and requires rehabilitation. There are many drug and alcohol rehab centers which accept Medicaid, but different states have different rules for what kinds of rehab are covered. Certain states only cover outpatient rehab services for example while other states cover more extensive rehab like a residential stay in long-term alcohol and drug rehab facility. If somebody is involved in drug use and desires help, they're able to use their Medicaid insurance coverage to get this help. If they do not have Medicaid and also don't have enough cash or another kind of health insurance to pay for rehabilitation, they can see if they are eligible for a Medicaid and then enroll in a drug rehabilitation program which is approved in their state.