Medicaid is a medical insurance available for many people who are in specific income brackets which qualifies them to receive this government funded insurance. Whether or not an individual qualifies for Medicaid doesn't only depend upon their earnings however, and people shouldn't assume they don't qualify just because they make a fair income. For example, people who have many dependents may be entitled to Medicaid even if they make an amount be considered a fair income. Medicaid may also cover the expense of treatment, when someone has been abusing drugs or alcohol and needs rehabilitation. There are numerous drug rehab programs which accept Medicaid, but various states have distinct guidelines for what sorts of rehab are covered. Certain states only cover outpatient treatment services for example while other states cover more extensive treatment like a residential stay in long-term drug and alcohol treatment program. If someone is involved in substance abuse and needs help, they are able to use their Medicaid insurance coverage to get this treatment. If they don't have Medicaid plus don't have enough cash or some other type of medical health insurance to pay for treatment, they can check if they qualify for Medicaid and then sign up for a drug rehabilitation facility that is approved inside their state.