All Team Members

Renee Hartz In 2009, I crossed paths with an ABA program in NJ, fell in love with the service, the science, and the people, and never looked back. I’ve worked in a private school, public school, in-home, center-based, and behavior…

Chelsea Gamache, M.S., BCBA, LABA Hi, I’m Chelsea! I have been working in the field of Applied Behavior Analysis for over 5 years. I received my Master’s degree in ABA from Simmons University.  In addition to my work as a…

Jill Mengel, BCBA, PhD, LABA Jill has over 20 years of experience working with children and adults on the Autism spectrum.  She received her Master’s degree from Northeastern University and acquired her BCBA in 2007.  She has worked in clinics,…

Dee Viscount Dee has been part of ABI since the organization’s early days, growing with the company through every stage. She is a proud mother of four grown children: including one with special needs, and a grandmother to three granddaughters…

Yasmin Messaggi Hi, I’m Yasmin! I come to ABI with over five years of recruitment experience along with a passion for developing relationships and recruiting top talent.

William Agganis As the CEO of Applied Behavior Institute, William “Bill” Agganis is responsible for developing strategies and business solutions to assist families and ABA therapy teams with the challenges children with autism face on a day-to-day basis. Bill brings…

Kelsey St. George M. Ed., BCBA, LABA Hello! My name is Kelsey St. George. I’ve been working in the field of Applied Behavior Analysis since 2015. I received my bachelors degree in social work from Rhode Island College and my…

Cassidy Doggett, M.S., BCBA, LABA, DSS Hello! My name is Cassidy, and I have almost 12 years of education and experience in the field, having taken my first course in ABA all the way back in 2014. I will have…