Medicare program is an insurance program by the federal government that provides healthcare fro people aged 65 years and above ,younger people with disabilities and those kidney patients with the end-stage kidney condition. The program has for parts namely A, B, C and D. Each part outlines the benefits given to a patient. In this case Part B may cover provider fees without the use of a private insurer.
Cholesterol (especially LDL*) tend to get into macrophages which migrate into blood vessels. Macrophages with cholesterol cannot get out of the vessels and stay there which causes a lipid mass in arteries. That causes atherosclerosis.