; The purpose of the Williamsburg Behavioral Psychology, LLC is to bring exemplary psychotherapy services based on the clinical psychology fields of expertise and to build a successful, profession, and friendly working environment.Individual, Family, Group Therapy. Diane C. Marti Ed.S., LMHP, LLC; Joseph S. Swobada, PhD, LLC, Asperger's Disorder, Autism, Child & Adult A.D.D., A.D.H.D., Anxiety,...