Laura,
I am from Texas, too. Being in 2 districts at central Texas (Austin area).
Texas has mandated Gifted program but some districts do more than the others. Many districts has nomination form for Gifted testing. Most of the time, the teacher will initiate and nominate the kids but sometimes, the parents has to get the ball rolling. Most of them do group testing like OLSAT or individual Naglieri (NNAT).
But I think your DS needs full neuropsych evaluation. Most of the times, the insurance will cover some of it. They will not cover individual gifted testing like WISC IV.
My DD11 is having headache and migraine for the last 3 months and we are making an appointment with the neuropsych as well.
