I would find a gifted psych, if only because your son is so gifted, he may feel more comfortable with an adult who *gets* him, particularly if he isn't feeling the love from the teachers at school!!
The re-testing issue is something to consider. He can't be re-tested on the WISC, however, out of level achievement testing wouldn't be unreasonable to look at unless it would be a financial hardship..........
I would meet with the person you are considering, listen to what he/she offers and take some time to think about it.
It's kind of hard to tell if the pysch is a good fit for your son/family until you meet that person and hear what they suggest and why. Good luck.
Neato
