Life-Changing Outcomes for Exceptional Kids

Diagnostic Services

First Children Services has immediate appointments for evaluations for autism spectrum disorder, ADHD, anxiety disorders, and behavioral disorders in our Colmar, PA location! Call 888-966-0746 now for an appointment!

Specialized psychological testing for children and adolescents including:

  • Autism Spectrum Disorder
  • Anxiety Disorders
  • ADHD
  • Behavioral Disorders

We work with various private health insurances and help families in identifying the behavioral healthcare benefits they are qualified to receive.  To learn more about insurance coverage for our behavioral health services, please call our intake and referral hotline at (888) 966-0746.

Diagnostic services are only available in our PA office.

Meet our licensed psychologist, Dr. John Siegler, PsyD

Dr. Siegler provides all of our diagnostic services in our Colmar, PA center.  He is a licensed psychologist with over 20 years of clinical, supervisory, and management experience in acute in-patient, psychiatric residential, intensive home-based, school-based, and outpatient treatment settings.  Dr. Siegler provides comprehensive psychological evaluation services including biopsychosocial diagnostic assessments, psycho-educational assessments, and specialized evaluations for children and adolescents.

Dr. Siegler previously served as the clinical director of the Child’s Outreach Services Program at Resources for Human Development in Philadelphia.  Prior to that role, he served as a clinical director of Children’s Behavioral Health Services at the Devereux Foundation and served a member of the teaching faculty at the Devereux Institute of Clinical Training and Research.

Dr. Siegler earned his Doctorate of Psychology in Clinical Psychology from Chestnut Hill College in Philadelphia with a specialization in psychological assessment.  He also earned a Master’s of Science in Counseling Psychology & Human Services with a specialization in marital & family therapy from Chestnut Hill College.  Dr. Siegler completed a predoctoral psychology internship in professional psychology at the Devereux Foundation Institute of Clinical Training and Research in Villanova, PA and a professional externship at the Center for Management of ADHD at Children’s Hospital of Philadelphia