For even more help I refer all to what I consider the most helpful thread in the history of the SDMB:
The main takeaway from that thread: Get a Medicare Supplement (Medigap) unless you absolutely cannot afford the monthly premiums (or if you live in Florida or California). If you cannot swing a supplement plan, go with Medicare Advantage (but really, find a way to afford Medigap). But for the love of Pete, don’t sit tight with just Part A and Part B.
mmm