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Our Story

Working Towards a Better Tomorrow

Bethea-Miller Behavioral Consulting, LLC was founded in 2016 by Vanessa Bethea-Miller, M.A., BCBA, LBS. We utilize the principles of Applied Behavior Analysis to provide socially significant services to our community. We also use these principles to decrease socially inappropriate behaviors while increasing more socially appropriate behaviors for children and adults with Autism or Intellectual Disabilities as well as those who are dually diagnosed with a mental illness. We focus on teaching socially appropriate behaviors, training families and staff, social skills, activities of daily living, the acquisition of functional communication, and much more.

About: About Us

Our Team

Who We Are


Vanessa Bethea-Miller, M.A., BCBA, LBS

CEO and Founder

Vanessa Bethea-Miller is a Board Certified Behavior Analyst and PA Licensed Behavior Specialist. Vanessa is the founder of Bethea-Miller Behavioral Consulting and Shaping Tomorrow Child Care Services, an ABA based daycare and preschool, and the co-founder of the ABA Task Force. She is also the author of “I Know What I Want to Be”, a sweet children's book about a young girl exploring different careers in science before deciding she wants to be a Behavior Analyst. Vanessa is pursuing her doctorate of philosophy in Applied Behavior Analysis (ABA) and currently holds a Master of Arts in Applied Psychology with a concentration in ABA, a Bachelor of Arts in Criminal Justice, and an Associate's degree in Business Administration.

Vanessa has dedicated her time to working with children and adults with Autism and/or Developmental Disabilities, with or without a co-occurring mental illness. She is passionate about providing quality and effective ABA services to this population as well as children in need of behavior supports. In addition to this, Vanessa provides coaching and mentoring to other individuals starting their own ABA practices. Vanessa also teaches courses in behavior analysis at the college level. She has presented internationally on various topics such as the application of ABA to the juvenile justice population, implicit racial bias, etc. Lastly, Vanessa has utilized components of school-wide positive behavior support with an emphasis on behavior analysis and applied them to a juvenile detention center during a practicum experience. 

When Vanessa is not working, she spends her time raising and educating her 3 daughters and son. She enjoys traveling and experience the world. Vanessa also volunteers as a District Equity Leadership Team Member for her local school district.

Christopher J. Tallmadge, M.A., BCBA

Part-Time Behavior Analyst

Christopher Tallmadge is the Clinical Director of Bethea-Miller Behavioral Consulting and joined the team in September 2020. He attended The College of New Jersey where he received a Bachelor of Arts Degree in Psychology and obtained his Master of Arts Degree in Psychology at Kean University. He also received his Certificate in Applied Behavior Analysis from Ball State University and has been a Board Certified Behavior Analyst since February 2018. He has worked in school, in-home, and adult service programs for over ten years, specializing in serving clients with severe maladaptive behaviors and impaired communication skills. He also has experience in crisis management, abuse/neglect investigations, and social skill development. Previous to his new role, he has most recently worked as a contractor to provide ABA services to families in the U.S. military. 

Christopher lives in Florence Township with his wife and their 18-month-old daughter. He enjoys film, music, playing guitar, swimming, and spending time with his extended families. He is also an ordained wedding officiant and has married several of his best friends and family members. 

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Michael Zelek, M. Ed., BCBA

Clinical Director

Michael Zelek joined our team in May 2022. He attended

Rowan University for his Bachelor of Psychology where he ran and worked on an applied behavior analysis study that examined gambling behavior using pigeons for approximately 5 years. He obtained his Master's degree in Applied Behavior Analysis from Arizona State University. 

Michael has worked in a variety of settings including private schools, public schools, residential, provided in-home services, and ran a clinic that was designed for children who were unsuccessful with out-of-district placement in schools. He has worked with clients varying in age from 2 years old all the way to 69 years old.

Michael has experience working with individuals diagnosed with Autism, Down Syndrome, Fragile X Syndrome, and comorbidities including bipolar disorder, schizophrenia, and dementia.

Michael has a 9-year-old daughter and a son on the way. He used to be a volunteer firefighter for a short time and his hobbies include spending time with family, friends, and his dog, taking care of my aquariums, hiking and anything nature-related, and playing guitar. His personal values at work include seeing progress from both clients, but also watching staff flourish and advance through their careers. 

Shantell Lewis, M.S., BCBA, LBS

Director of Community Relations

Shantell Lewis joined our team in May 2017. She attended Brooklyn College, obtaining her Bachelor's Degree in Speech Pathology, Audiology, and Communication Sciences. Shantell holds a Master of Science in Psychology with a concentration in  Applied Behavior Analysis from Purdue Global University. 

Shantell has dedicated her time to working with children with and without special needs. For about 3 years, Shantell has worked at our sister company as a Center Director. She has also worked at Bethea-Miller for over 5 years as a Registered Behavior Technician (RBT), Program Coordinator, and now a Behavior Analyst. Shantell comes to us with a wealth of knowledge related to Applied Behavior Analysis.

Shantell has a teenage daughter and a pre-teen son. Her hobbies include singing, dancing, and crafting. She enjoys blogging and creating social media content. 

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About: Team Members
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