Technically, in order to have a healthcare plan, to cover the things Medicare Parts A&B do not cover, and limit your maximum out of pocket medical expenses, you need a permanent address that you live at more than six months a year. Since a good portion of American retirees, are in motor homes traveling around America, do not have a permanent residence, I did some research and came up with an unorthodox but semi legal way to save money, on health insurance. Since you don't have a residence, you could get a P.O Box. A little on the internet and find a state with good coverage but an inexpensive premium and you will save a bundle. One thing that most retirees forget is, especially those who cycle, if they need healthcare, when traveling out of the country. They don't realize that Medicare Parts A&B only covers health care in the US, or in some situations near the U.S. border. Some Medicare Supplement Plans that works with Medicare Parts A&B, have a lifetime fund of up to 50k per person for emergency care outside the US. (Most group insurances don't have coverage either) This doesn't solve your other issues, (especially who will clean out your mailbox of all the junk mail) so ultimately, if you had a family member or friend who would let you use their residence as your permanent address this might be a better alternative.