I'm not sure what esophageal specialists are called to be honest (possibly Gastroenterologist?), I was scheduled to meet with our local one when we were first trying to figure out what was going on with me and they just called him the esophageal specialist when talking to me about him. If your primary care guy is not looking after you, I think you're right to be looking for a new one. That's really hard to do where I live, good luck with that.

Heh... When I was given my diagnosis, my wife and I both declared "much better than the alternatives, I choose this one" Of course, I'd prefer not to have any health issues.