Medicare is a type of medical health insurance created by the U.S. government for senior citizens, in addition to people who have certain disabilities and sicknesses. When someone who has Medicare needs rehabilitation for cases of substance abuse, their rehabilitation will either be covered completely by their Medicare insurance or to a significant extent. The only exception is, the person will have to obtain treatment from a drugs and alcohol detox facility which accepts Medicare. Before the individual will be permitted to start rehabilitation, they will also have to see their primary care physician who must declare that rehab services are medically necessary, and the physician will typically approve which kind of rehabilitation the individual will take part in. Medicare Part An and Part B cover various kinds of treatment services. Medicare Part A pays for an inpatient stay in a Medicare accepted program in the event that the individual needs to be in a hospital because of their problem, and the costs that they will have to cover personally are the same as any other stay in a hospital. Part B will partially cover outpatient treatment inside a Medicare accepted program, and the individual will have to cover whatever Medicare Part B doesn't pay for with supplemental insurance coverage or they're going to have to self pay.