I PM'd you but I wanted to add- there are very few psychologists that specialize in gifted children. Most see kids with LD issues, on the Autism spectrum or with SPD. But that doesn't mean that they don't have experience with gifted children- which I think is what you really want to find.

My son was originally tested by a university student and it was a disaster- she was being trained to work with much older children and had never seen kid for gifted testing before. She wouldn't answer his questions and when she did, the answers were totally inappropriate for his age. Who would tell a 5 year old that behind the two-way mirror are people watching him to see what he is doing? Not a good way to get accurate results!

So you want to focus on experience- both with the age and the giftedness!