Zachary J Thieneman Author

Tony L. Sheppard, PsyD, CGP, AGPA-F, is a psychologist in private practice and has been involved with group work with children and adolescents for over 20 years.

Zachary J. Thieneman, PsyD, CGP, is a psychologist in private practice and has worked with children and adolescents for over 15 years.