Need Help on how to get health insurance while traveling

We have Blue Cross Blue Shield and they cover us anywhere in the US. They pay for any medically necessary procedures wherever we are. It's a PPO so we need to use "in network" providers, but there are lots everywhere. We are in Mobile Alabama at the moment and there are 470 different doctors we can use within 20 miles of our current location. It's a bit pricey, but until Medicare kicks in it is what we use.