I'm not sure about the Omaha area, but since you are willing to consider someone from Lincoln. Try the Women's Clinic of Lincoln. It is a friendly place. They are located just off "O" Street by the Gateway (Westgate) Mall.
http://www.womensclinicoflincoln.com/
Is their website. Ummm.... if nothing else maybe give them a call and see if who they would recommend in Omaha?
The Nurses and Docs at the Women's Clinic have been very friendly with me. I usually work with the nurses who are assigned to Dr. Swanson. Their dietician was great and willing to take a little extra time to explain things. They are also associated with a Family Clinic for general medical stuff, so it's really easy going between them and a GP for other things.
Dr. Nafach is the endocrinologist they refered me to and he has been helpful so far in explaining what tests, why, and all that.
I hope this at least gives you a lead for someone who will help you with things.
Since you work near the Med Center maybe just give them a call and see who they may recommend?
Lots of luck,
D.