Part A – This could be called the hospital. It includes some other things. Part A most people qualify for at no cost. You get this automatically when going on Medicare.
Part B – Part B is Doctors, Labs, and similar items. Part B a person pays for, usually as a deduction from their Social Security check.
Part C – Part C is not really a “part” in the same sense as A & B. It combines Part A and Part B into a private plan administered by an Insurance Company. A person opting for Part C (sometimes called Medicare Advantage) continues to pay for Part B out of their Social Security check. Each of these plans differ by COUNTY. What may be good in one county may not be available or as good in another.
Part D – Again, this is not a “part” in the same sense as A & B. Since Medicare does not cover most prescription drugs, this is a way of getting one’s drugs covered. This changes every year and so must be re-evaluated considering changes to the plans, possible new plans, and changes in a person’s own medications.