How could I have my OXYGEN TANKS filled while travelling in another STATE, either by MEDICARE or...?

Have just been told by oxygen co. in city where I'me visiting that Medicare cannot pay two companies at the same time. How else could I be able to get my oxgyen tanks filled?

you need to contact medicare and tell them you're traveling or get extra canisters

Call Medicare. If you let them know in advance, and ask them where you can go in the place you are visiting, they should be able to help you out...any company is usually more willing to assist you if you let them know about changes in advance as much as possible.

Good luck!

Contact you local Oxygen supplier to get your oxygen to you in the state you're visiting.