AARP United Healthcare seems to be a good plan nationwide; it is what we chose recently. Our local Council on Aging, a respected nonprofit senior advice center, recommended against Medicare Advantage plans, which they said replace, rather than supplement, traditional Medicare. They recommended the AARP United Healthcare plan that gives you a choice of providers, plus an AARP prescription drug plan (Part D). We are in Arizona but expect to travel extensively. Do look carefully, as there are a lot of pitfalls, traps and quirks built into the system. The Council on Aging provided excellent classes and materials to help us through the thicket. Good luck with your choice.