Our Team

Our team includes more than 100 treatment professionals who are highly trained in implementing ABA with individuals with autism spectrum disorder. Our supervisory team includes a pediatric neuropsychologist, a clinical psychologist, licensed counselor, and over 20 BCBAs/BCaBAs.


Dr. Julie Knapp, Ph.D., BCBA-D, COBA
Executive Director
Pediatric Neuropsychologist
Board Certified Behavior Analyst-Doctorate

Dr. Knapp holds a license to practice psychology in Ohio and practice ABA in Ohio, Massachusetts and Virginia. Previously, Dr. Knapp was a Consultant for University Hospitals Rainbow Babies and Children’s Hospital and held an appointment at Case Western Reserve University for six years. Dr. Knapp was also a Staff Psychologist at Cleveland Clinic Center for Autism, and she was a faculty member in psychology education forums for Duquesne University and Chatham University. She completed a two-year post-doctoral fellowship in neuropsychology and autism spectrum disorders at The Watson Institute, followed by completing additional training at Pennsylvania State University in behavioral analysis for children with autism. Dr. Knapp was a committee member for two years for National Academy of Neuropsychology. Dr. Knapp currently holds certifications in both the Autism Diagnostic Observation Schedule (ADOS) and the Autism Diagnostic Interview–Revised (ADI-R). Dr. Knapp has published numerous articles or abstracts on autism related topics in professional journals, and has presented research posters at national conferences. She edited a resource guide for autism services in the state of Ohio (funded and published by the Cleveland Clinic). Dr. Knapp was the primary investigator on a drug trial for toddlers with autism through the National Institute of Health (NIH) while on staff at Cleveland Clinic. She has over 15 years of experience in working with children with developmental disabilities and has presented over 75 workshops or talks on autism-related topics at local, state, and national conferences or meetings. Dr. Knapp co-authored three books and authored a fourth book, all on ABA curriculum for children with autism and all which are sold internationally.

Carrie Snyder, M.S., BCBA
Chief Clinical Coordinator
Board Certified Behavior Analyst

Carrie Snyder M.S., BCBA, COBA is a Board Certified Behavior Analyst, Certified Ohio Behavior Analyst and Chief Clinical Coordinator of the Knapp Center for Childhood Development. Carrie earned her Master’s of Science degree in Applied Behavior Analysis and has over 10 years of clinical experience working with children with autism and developmental delays. Prior to joining the Knapp Center in 2012, Carrie served as a Behavior Specialist Consultant and Licensed Behavior Specialist in PA, providing Behavior Health Rehabilitation Services to children ages 2-17 in public schools and home-based settings. In her position at the Knapp Center, she coordinates all clinical and staff training programs while also assisting in diagnostic, neuropsychological and psycho-educational evaluations.

Diagnostics & Counseling

Dr. April Topfer, Ph.D.
Diagnosing Clinical Psychologist
Denise James, MS.Ed. BCBA, COBA, LPCC-S
Licensed Clinical Counselor
Board Certified Behavior Analyst

Board Certified Behavior Analysts

Amy Lockney, BCBA
Initial Steps Day Treatment
Clinical Supervisor

Fanta Cannon, BCBA
Outreach Program

Lisa Feezle, BCBA
Outreach Program

Suzanna Frye, BCBA
Initial Steps Day Treatment
Program Coordinator

Marie Capichioni, BCBA
Outreach Program

Richard Justin Flick, BCBA
Initial Steps Day Treatment

Amber Hill, BCaBA
STEPS Program Coordinator
Crisis Team Trainer

Chloe Peterkin, BCBA
Outreach Program

Sara Tokarsky, BCaBA
Initial Steps Day Treatment

Andrea Holtz, BCBA
Enrichment Clinical Supervisor

Ashley Romina, BCaBA
Outreach Program


Kara Kautz

Human Resources Generalist


Becca Muntean

ABA Program Assistant


Nolan Bonham

Intake Coordinator


Tammy Bodrick

Office Manager

Monica Hall

Billing Department Lead


Nicole Schriner

Billing Specialist

Barb Gentile

Billing Specialist