I received a letter from Mayo that Mayo is not in network for any Medicare Advantage plans. They accept regular Medicare and Medigap supplementals. My research found that Plan G (open to anyone who pays the premium) or F (special qualifiers based on when you turned 65 and applied). Checked Forbes and Consumer Reports and determined for my husband and me, Fla Blue, United Healthcare or Humana had the best options. You should do some research as many insurance providers have plan G. We based it in coverage (most are comparable) and cost. Still have not chosen the winner.