Hello Mouthbreather,
With all due respect to my fellow Cpapers and definitely with the idea that many of us have different opinions.
My opinion only:
1. Even if you are in a rural area, try your utmost to locate a physician who is Board Certified in Sleep Medicine. Then find a second Board certified Sleep Disorders Specialist and get a second opinion.
After you get a second opinion post again here, remember we are not Physicians.
2. The American Academy of Sleep Medicine [ASSM] is a start.
3. Google "AASM", THEN FOLLOW LINKS TO YOUR STATE and Board Certified
in Sleep Medicine or Board Certified in Sleep Disorders; I am not sure of the exact term.
4. Get your friends to use the internet to find someone Board Certified in Sleep Medicine
5. Ask for a definition of a sleep doctor on this forum again.
6. In the spirit of cooperation and maybe I am having a really bad day; I thought the people on this forum would have a more precise answer.
7. Pulmonologists, ENT's are probably not good enough unless they are also Board Certified in Sleep Medicine /Sleep Disorders. Even then, expect the unexpected and good luck.
I wish my answers were better.