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Board Certified Behavior Analyst: Provides ongoing supervision for your child's therapy including staff and parent training, analyzing treatment outcomes, and making data driven decisions. The BCBA is your "go-to" person for everything from clinical questions to sharing excitement over reaching a milestone.

Michael “Mike” Nazzaro


Clinical Supervisor

Since 2012 I have worked with children and adults with a variety of abilities and disabilities.  I have a passion for providing care and training in the home and in the community where children spend the majority of their lives.  Over my time in the field I have most enjoyed building relationships, seeing children and families develop new skills and improve their lives together. 

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Sarah Helm-Dunbar


Director of Clinic Operations and Supervision

I began my career in ABA in 2008 and graduated with my Masters in Applied Behavior Analysis in 2012 from Westfield State University.  I was the clinical director of the May Center School for Autism and Developmental Disabilities in West Springfield and I have participated in a wide variety of services related to those with special needs. I have a passion for services that provide individuals with quality of life through leisure and recreation. When I am not practicing ABA I enjoy whittling and woodworking, playing volleyball, and enjoying the great outdoors. 

Emily Drury

I have always loved teaching, first as a Karate Instructor, then as an English teacher in South Korea, and now as a BCBA! I received my bachelor's from UMass Lowell with concentrations in Psychology and English and later got my Master's from Arizona State in Special Education with an ABA concentration. I love helping clients find new and different ways to express themselves and their needs. In my free time I love spending time with my family, playing card and video games, and going for very long walks with my family's dog.

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Casey Harrington

I graduated from UNH with my bachelors in Psychology and then went on to graduate from Endicott college with my masters in ABA and Autism Spectrum Disorders. I have worked in a variety of settings including public schools, private schools, home based, and center based settings. I enjoy building close relationships with the families I work with and love being able to celebrate all of the progress and growth! Outside of work I enjoy traveling, gardening, and being by the water with my dog! 

Nelvi Diaz


I have a Bachelor of Science in Psychology from Evangel University and a Master of Science in Behavior Analysis from Simmons University. For the past 17 years I have worked with children and families as a social worker. It is my passion to work to improve outcomes, build positive working relationships, and find joy in everyday things. I especially enjoy Natural Environment Teaching and using the child’s interests to teach relevant skills. Outside of ABA, I love to read, crochet, and playing The Legend of Zelda. It is always a pleasure to meet new families and I look forward to working with you!

Hillary Riley


I graduated from Umass Lowell with my B.S. in psychology with a focus on developmental disabilities and received my M.S. from Simmons University in Behavior Analysis. I've worked as a special ed. paraprofessional, RBT, RBT trainer, and clinical BCBA coordinator. I have supported individuals with Autism in home, center, and school settings to learn necessary skills and achieve milestones. I love teaching social and group skills, contriving opportunities for mand training in novel, functional ways, and Natural Environment Teaching! In my free time I love to explore with my husband, exercise, travel, paint/draw, cook, decorate, and snowboard!

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Isabel Rombult

In 2019, I graduated with my bachelor’s in psychology and recently completed my master’s program in Applied Behavior Analysis at Endicott College. I started working in ABA in 2018 and have since worked in a variety of settings and with different age groups. I love working with clients and families to build meaningful skills. Outside of work I enjoy spending time at the beach, camping, and a wide variety of arts and crafts!

Kylee Kurto

I graduated from Florida Institute of Technology with my M.A. in Behavior Analysis Practice. Before becoming a BCBA , I was lead Behavior Technician for BEST and prior was a supervisor at a day habilitation center that provided services to persons with Developmental and Intellectual Disabilities. Outside of work, you will find me in the gym or on a mountain! 

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