Your regular doctor can order the test to start.
You should then start with a regular endo but they are generally not qualified to treat pituitary. So find a university or larger hospital as they generally will have a pituitary center there. Atlanta has, to my knowledge, several. But I don't know how good they are.
And no: no problems with spacing of the teeth; there are no headaches either, apart from the common headaches that everyone gets from time to time, but nothing of a severe or regular occurrence.
How would one go about this? Are there any physicians in the Atlanta area i could see about this?
I am only a layman but I would go ask for a IGF-1 and other hormones. It can be controlled now with medications, so you need a good doctor to see if you have the issue.
Do you have any problems with spacing of your teeth, or headaches?
If you have elevated IGF-1, find a pituitary center.