Medicare is a form of health care insurance created by the government for senior citizens, and also people with certain disabilities and illnesses. If someone that has Medicare needs treatment for cases of drug or alcohol abuse, their rehabilitation will either be covered entirely by their Medicare health insurance or to a significant degree. The only real exception is, the person will need to obtain treatment from an alcohol and drugs rehab facility which accepts Medicare. Before the person will be allowed to start rehab, they will also have to see their primary care physician who must declare that rehabilitation services are medically essential, and the doctor will generally approve which kind of treatment the person will take part in. Medicare Part An and Part B cover different types of treatment providers. Part A pays for an inpatient stay in a Medicare accepted program when the individual needs to be hospitalized for his or her problem, as well as the costs that they will have to cover personally are identical to every other hospital stay. Medicare Part B will partially cover outpatient treatment in the Medicare accepted facility, and the individual will need to cover whatever Part B doesn't pay for with supplement insurance or they'll have to self pay.