Medicare is a kind of medical health insurance created by the federal government for seniors, in addition to individuals with certain disabilities and diseases. If an individual who has Medicare needs rehabilitation for cases of substance abuse, their rehab will be either covered in full by their Medicare insurance or to a great extent. The only real exception is, the individual must receive treatment from the drug rehab facility which accepts Medicare. Before the person will be permitted to start rehab, they may also have to visit their physician who must declare that treatment services are medically necessary, and the physician will usually approve what sort of rehab the individual will do. Medicare Part An and Part B cover a variety of rehab providers. Part A covers an inpatient stay in a Medicare accepted program when the individual should be hospitalized for his or her problem, along with the costs that they will have to cover personally are identical to every other stay in a hospital. Medicare Part B will partially cover outpatient rehabilitation within a Medicare accepted center, and the individual will need to cover whatever Medicare Part B doesn't cover with supplemental insurance or they're going to have to self pay.