Medicare is a form of health insurance created by the federal government for seniors, in addition to those that have specific disabilities and diseases. When someone who has Medicare needs rehabilitation for cases of drug or alcohol abuse, their treatment will be either covered entirely by their Medicare health insurance or to a significant extent. The one exception is, the person will need to obtain treatment from a drugs and alcohol detox facility which accepts Medicare. Before the person will be permitted to start rehabilitation, they may also have to see their doctor who must declare that treatment services are medically needed, and the doctor will usually approve which kind of rehabilitation the person will do. Medicare Part An and Part B cover various kinds of rehabilitation services. Medicare Part A covers an inpatient stay in a Medicare accepted facility in the event that the individual must be hospitalized because of their issue, as well as the costs that they will have to pay for personally are the same as any other hospital stay. Part B will partially cover outpatient rehab within a Medicare accepted facility, and the individual will need to cover whatever Medicare Part B doesn't pay for with supplemental insurance coverage or they'll have to self pay.