Some GI's do treat hemmis, Alcie (mine did)...if they require surgery, they will send you to the colorectal surgeon (I've had thrombosed necrotized hemmies)...they will also be able to tell if you indeed have a hemorrhoid or fissures (many people get fissures and mistake them for hemmies). fissures are breaks in the lining in the anus (see the wiki site: en.wikipedia.org/wiki/Anal_fissure
Just a thought, but you could also ask for help in the Crohn's disease and UC forums as we tend to deal a LOT with GI's and these issues and we tend to have a lot more traffic there
I agree with a previous poster in that you will probably give a history, and depending, they may want to see what's going on (but nothing too invasive at the start)...depending on the issue, you may start out with ointments...
I hope all goes well, take care!