Medicare is not to be confused with Federal Emergency Care minimal standards.
Evaluating and stabilizing a patient is not to be mistaken for availability of all possible Medicare services.
Once the minimum standards of evaluation and stabilization under the Fed requirements have been met, referral will depend on whether such services are available at all, (many are not), or if they are available, whether they will be offered without additional cost to a Medicare dependent patient is not a sure thing.
Rather than relying on assurances from an individual on a public message board, if it was a concern of mine, I'd want a bit more information before I headed out, if the possibility of needing Medicare dependent health care is of much concern.
Myself, I'd fire off some emails and ask Medicare representatives some pointed questions about coverage where I intended to travel,
.....and I might even suggest looking into some of the State health care sites for some more clearly delineated answers.
I do know that Medicare coverage is limited in the case of foreign travel, and in a state like Alaska, it's not unlikely that one may find themselves far from any total coverage one may be used to in a more populous state.
http://www.medicare.gov/Publications/Pubs/pdf/11037.pdf
http://www.medicare.gov/Publications/Pubs/pdf/11152.pdf
Main page Medicare
Medicare.gov - The Official U.S. Government Site for People with Medicare
Contact page Medicare
</title> <title>Overview
.
..