Which specialist is best??? | ADHD Information

My son has a neuropsychologist who is a godsend. In addition to doing an
extremely thorough testing, he gave me an 8 page report of specific aids for
my son. Simple things, like give him a checklist. In addition to helping my
son tremendously, it was a great document to hand to the school so they
would know what to do to help him.

His pediatrician prescribes his meds, but he is an ADHD specialist and he
works closely with a meds specialist.

And he also sees a therapist to fill in the gaps in his social learning.

Currently working w/ a Behaviorial Pediatrician (and school) in determining if my 9 year old son has AD/HD.... but now wondering upon reading many posts here if my son should be seen by a different specialist (i.e., neuro doctor) or seen by multiple drs. 

What type of dr is treating your child?

Thanks so much in advance.