If you have the means, private testing is probably worth it. Depending on how far from the norm your dc is will help determine if a gifted program will help or if he will need something different. Also, get achievement testing to go with the IQ testing. (We found the outside testing to be invaluable.)

My ds just finished 1st, and with pullout for math and differentiation in a highly rated district was not enough. We are trying a private school next year.

Keep us posted.