There are traveler insurances, although most of them are oriented toward international travelers.
The catch is that they are not "Obamacare compliant" which means they have some cost changes and eligibility changes based on
medical history and other issues, and almost impossible to get if you do not now have
insurance.
Ours (with geo blue) covers us anywhere with a very deep set of
network providers in the
USA and around the world.
It might not be suitable for you because it DOES require you to be "scheduled" to be outside the
USA for 3 months a year. Don't give up becasue some none experts say it is not possible. Take to
insurance brokers, and do some more
google research. If you
work outside the official "Obamacare" pool you might find something suited.