Our Team
Leadership
Elisabeth Hayes, BCBA
Elisabeth has been a Board Certified Behavior Analyst (BCBA) since 2013. She earned a Bachelor’s degree in History and Psychology from the University of Michigan and a Master of Arts in Applied Behavior Analysis from Teachers College, Columbia University. Elisabeth has been part of One House since its inception in 2024.
Isabella Howerton, BCBA
With a Master of Arts in Exceptional Student Education, specializing in Applied Behavior Analysis, from the University of West Florida, Isabella is dedicated to increasing independence and improving the quality of life of children and adults with autism and related disabilities.
Team
Daquan Ferris
Daquan has a background in luxury management within high-end residences in Sunny Isles, where he developed a strong foundation in client relations and service excellence. Recently, he transitioned into the field of behavioral health, becoming a Registered Behavior Technician. In this role, Daquan brings patience, dedication, and a passion for helping individuals achieve meaningful progress.
Rohan Lawrence
Rohan has a background in Building Technology and holds an Associate Degree in Electronic Engineering. After moving to the United States several years ago, he discovered a passion for helping others. He began his career as a Home Health Aide and has since earned his Associate Degree in Nursing (ASN). Rohan is excited to bring his dedication and enthusiasm to the field of nursing.
Oscar Perez
Oscar is a Registered Behavior Technician who works with individuals on the autism spectrum, providing support to help them thrive and integrate successfully into their communities. His responsibilities include assisting with the development of functional and practical life skills, fostering independence, and enhancing overall quality of life.
Tim Simpson
A Florida native with 17 years of experience in behavioral healthcare, Tim is a Registered Behavior Technician skilled in supporting diverse populations. He has extensive experience in psychiatric, residential, and school-based settings. Tim is dedicated to fostering growth and achieving positive outcomes through compassionate care.
William Torres
William has worked as a Behavior Therapist since 2019, providing direct services and case management to support individualized client goals. With a background in IT, he also manages data collection systems and analysis, ensuring accuracy and creating streamlined workflows.
Consultants
Ray Cepeda, M.Ed., BCBA, LBA, IBA (he/him)
Ray is the Chief Clinical Officer at the Groden Network in Providence, RI. The Groden Network provides services to individuals with developmental differences from Early Intervention through Adulthood (which includes multiple residential settings in Rhode Island and Massachusetts). Ray was the Founder and Director of ABAskills, LLC for 22 years, a group that provided behavioral consultation to families and school districts in multiple states. He is a former clinic supervisor for the Lovaas Institute and has over 30 years of experience supervising intensive home-based programs for learners with autism, working in applied behavior analysis schools, consulting with school-based programs, integrating and mainstreaming learners into typical learning environments, training parents, and speaking on topics regarding the use of behavior analytic teaching methodologies and program individualization for children with autism. Ray is also a recipient of the Award of Distinction from Long Island Advocates for his dedication to the autism community. His current area of interest is language/communication development for individuals with autism of all ages.
Jillian Doran, M.S., BCBA, LBA
Jillian is a licensed and certified Behavior Analyst in New York State with over 10 years of experience in Applied Behavior Analysis (ABA). With a unique skill set in managing severe behaviors, she has partnered with individuals and families in crisis, developing customized strategies that help learners regain independence and transition back to less restrictive settings.
Jillian received her behavioral training at the Marcus Autism Center in Atlanta, Georgia, where she gained valuable experience in both the Language and Learning Clinic and the Severe Behavior Clinic. Her career has provided her with the opportunity to work in a variety of settings, including group homes, telehealth, home-based services, schools, and behavior clinics.
She holds a Master’s Degree in Neuroscience, Developmental Disabilities, and Mental Retardation, along with a certification and licensure in Applied Behavior Analysis. Jillian also earned a Bachelor's degree in Psychology. Outside of her clinical work, she is an active member of the New York State Association for Behavior Analysis (NYSABA) and the Association for Behavior Analysis International (ABAI).
Dr. Sarah Heller, BCBA, LBA-NY
Dr. Heller is a nationally recognized behavioral analyst, educator, and executive consultant specializing in inclusive education, neuroaffirming practices, and scalable behavior systems. With advanced degrees in educational leadership, special education, early intervention, and applied behavior analysis, she brings over 15 years of experience supporting families, schools, clinical teams, and institutions.
As the Founder of Meaningful Metrics, Dr. Heller helps families and organizations implement data-driven strategies that lead to measurable improvements in client outcomes, educator effectiveness, and staff climate. Her work bridges clinical rigor with strengths-based, sustainable practices. Through Meaningful Metrics she also provides supervision to RBTs and BACB Supervisees.
Dr. Heller is also a frequent presenter at conferences, schools and organizations such as ABAI and NYSRCASD. She pursues her passion to shape and build the field through her roles as an Adjunct Professor at Fordham University and Committee Chair at Long Island University.