Do I have to enroll in Medicare? Do I have to be 65 to enroll in Medicare? Do I have to enroll in Medicare or is it automatic? Who is eligible for Medicare? What does Medicare Cover? What is the difference between original Medicare, Medicare Advantage, or Medigap? What is and who pays for Part A, Part B, and Part D? If I am not ready to retire at 65, do I need to enroll in Medicare? If I am going to work part-time, do I need to enroll in Medicare? Contact your www.ssa.gov and www.medicare.gov to enroll www.medicare.gov is the official website of the United States government's Medicare program And many other questions.