Natalie AStacey,
We live in Sacramento and use an pediatric endo for our daughter since she is only 11. I hope we dont have difficulty in finding someone when she gets older. When we lived in the Bay Area we used the same endo, just so happened he moved up here to Sacramento about the same time we did. Lucky us, we love him!
Good luck in finding someone, I will ask around and let you know if I hear of anyone.
Natalie