OUR TALENTED TEAM
Christina Rizzo Tatreau, MFA, BCBA, LABA
Owner/CEO
Program Director of the Tate Learning Center
Christina founded Tate Behavioral in 2013 with the goal of bringing high-quality in-home and school-based ABA services to Western MA. After supporting individuals of all ages and abilities for over 16 years, Christina currently oversees the day-to-day operations of Tate Behavioral and is the Program Director for the Tate Learning Center. Christina holds a BA from Clark University, an MFA from Bennington College, and completed her coursework in Applied Behavior Analysis at Florida Institute of Technology. A former writer, her clinical passions are Applied Verbal Behavior, social skills instruction, and schedules of reinforcement. She enjoys running, cooking, gardening, and spending time with her family. Christina received a spot on the Forbes NEXT1000 2021 list, a designation honoring small business entrepreneurs redefining the American dream.
Erica Nason, M.A., BCBA, LABA
Director of Adult Services
Erica earned a B.A. in Psychology and an M.A. in Applied Behavior Analysis from Westfield State University. She then became a Board Certified Behavior Analyst and received her License in Applied Behavior Analysis. Since 2010, Erica has worked with individuals with Autism, Social & Emotional Disorders, Intellectual Disabilities, and Developmental Disabilities who display challenging behaviors. She has worked training families and after-school program staff on implementing programs and procedures in applied behavior analysis. Additionally, she has participated in and run social skills groups with children and adults. In October 2023 Erica received the Jerry Shook Practitioner Award from BABAT for “exceptional and enduring contributions to the quality of life of individuals through the practice of ABA”. In April 2023, Erica opened the Tate Behavioral Community-Based Day Supports program that serves adults in Western Ma. Erica is passionate about working with adults to reach their full potential, connecting them to their communities, and helping them live thier fullest happiest lives.
Beyond Erica’s passion for ABA, Erica cares deeply about social and environmental justice. She loves music, dance, and comedy.
Abby Wellspeak, M.A., BCBA, LABA
Director of In Home ABA
Abby Wellspeak is the Director of the Tate At Home division of Tate Behavioral. With more than 10 years of experience in the field of ABA, she is our resident expert on all things insurance-related, including writing treatment plans and working to secure funding for home programs. She also works in homes training parents and supervising future BCBAs.
Abby has been providing ABA services to families and individuals with disabilities in homes, residential settings, and public and private schools throughout Western Massachusetts since 2008. Abby graduated with a Master’s in Applied Behavior Analysis from Westfield State University in 2013 and has been a Board Certified Behavior Analyst and Licensed Behavior Analyst since 2014.
One of her passions is working directly with families to help integrate her clients into their community, through doctor's appointments, dance classes, and family vacations. Outside of the office, Abby is most likely to be found spending time with her son “PJ”, sipping on iced coffee, or conquering any board game challenge.
John Lempart
Director of Education
Tate Learning Center
Zack Mullane, RBT
Educational Team Leader
Tate Learning Center
Tony Watt, BCBA, LABA
Director of Clinical Training
Tate Learning Center
Anthony Watt, MA, BCBA, LABA, is the Director of Clinical Training at the TLC, where he integrates clinical expertise in applied behavior analysis with a strong focus on leadership and staff development. He is dedicated to fostering a culture of reinforcement-based, assent-driven practice that empowers students to thrive and equips staff with the tools to grow as confident, compassionate professionals. Anthony has a passion for mentoring emerging clinicians and shaping programs that balance consistency, creativity, and ethical integrity. Outside of his professional role, he enjoys strength training, creative writing for tabletop role-playing games, and most of all, spending time with his wife and two young sons.
Nerissa Hall, PhD. CCC-SLP
Co-Director of Speech Language and Literacy
Hillary Jellison, MS, CCC-SLP
Co-Director of Speech Language and Literacy
Emily Donoghue, MA, CCC-SLP
Speech Language Pathologist
Julia Serra
Speech Pathologist
Sarah Laushance
Floor Manager
Tate Learning Center
Coordinator Tate Community Programming
Adrianna Bullock
TLC
Administrative Assistant
Tate Learning Center
