Since I will be traveling for a year I called my healthcare provider/medicare advantage plan for information. Here's what I found out:
MODA - my medicare advantage plan insurer - I am fully covered in all states if I use a provider on the PHCS network. PHCS stands for private health care systems. If I see a provider not in the network I will be covered as under my plan for out of network. Canada or other countries I will be covered for emergency only, will need to pay up-front, and then file for reimbursement. Since I'm an RN and can usually tell if I need care I think this will work for me. Finding out that I don't need additional insurance is a big relief for me!