[annapurna]

Are you capable financially of going to Europe? With you already near the east coast, it's a shorter set of hops for you. I recognize your sitting tolerance is a problem but you could check out first class and use the reclining seat options. If you can manage a Americas to UK hop, you have the possibility of taking trains the rest of the way and may even be able to book sleepers for a large fraction of the travel. It would be draining travel but you have the option of breaking it up and resting in hotels. That's the only other option that springs to mind over looking for surgeons within the US.