A: Medicare will typically always cover a large portion of the cost of a prosthesis. They require medical justification for the prosthesis that is supported by evidence found in your medical record. If you are a new amputee, simply not having a prosthesis is usually a sufficient reason for them to pay. If you already have a prosthesis and are looking at getting a new one, it is critical that you arrange to see your primary care physician to get your issues with the prosthesis documented in your medical record. By doing this you will greatly speed up the approval process and will shorten your wait for a new device.