I don't know the doc but i would certainly get another opinion. His AFO's should not break the skin, that means they haven't been moulded properly, they shouldn't even leave red marks. If he needs them then you should seek another opionion and get something done.
Doctors like to pass you around so keep looking and get him another docotor.
Also even if no one knows the docotor, you've got nothing to loose if your son needs treatment.