Medicare is a kind of health care insurance developed by the U.S. government for older folks, as well as people who have certain disabilities and diseases. If someone who has Medicare needs treatment for cases of drug or alcohol abuse, their rehab will either be covered completely by their Medicare insurance or to a significant extent. The only exception is, the individual must receive treatment from the drug rehab facility which accepts Medicare. Before the person will be permitted to begin treatment, they may also have to visit their physician who must declare that rehab services are medically necessary, and the physician will usually approve what type of treatment the person will take part in. Medicare Part An and Part B cover a variety of rehabilitation solutions. Part A covers an inpatient stay in a Medicare accepted program when the individual must be in a hospital for their problem, along with the costs that they will have to cover personally are the same as any other stay in a hospital. Medicare Part B will partly cover outpatient treatment inside a Medicare accepted center, and the individual will have to cover whatever Medicare Part B doesn't pay for with supplement insurance or they'll have to self pay.