Medicare is a type of health care insurance designed by the government for older folks, along with people who have certain disabilities and sicknesses. If someone who has Medicare needs rehab for cases of substance abuse, their treatment will either be covered fully by their Medicare health insurance or to a significant extent. The only real catch is, the person will have to acquire treatment coming from a drug rehab facility which accepts Medicare. Before the person will be permitted to begin treatment, they may also have to see their medical doctor who must declare that rehab services are medically necessary, and the physician will usually approve what type of rehab the person will do. Medicare Part An and Part B cover various kinds of rehab services. Part A pays for an inpatient stay in a Medicare accepted facility in the event that the individual must be hospitalized for his or her issue, as well as the costs that they will have to pay for personally are the same as any other hospital stay. Medicare Part B will partially cover outpatient rehab in a Medicare accepted program, 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.