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SPBS offers a range of psychological and consultation services, including those related to autism spectrum disorder (ASD), ADHD, educational, and other evaluation and therapeutic services. SPBS was established in 2016 in Valdosta, GA to provide much needed services and supports to children, adolescents, and young adults in the South Georgia area, given the significant need in the area. 

Dr. Twyla L. Mancil 

Dr. Twyla L. Mancil is the owner and licensed psychologist of SPBS. She has extensive training and experience in working with children, adolescents, young adults, and families with a variety of psychological needs. She has specific training in the assessment and treatment of ASD. Dr. Mancil graduated with her doctoral degree from the University of Florida in 2012. She completed both an internship (at FSU) and postdoctoral fellowship (in Moore, OK) in the area of autism services and has since devoted a large portion of her practice to supporting individuals and families with ASD. She has training in leading autism therapies, including those using ABA-related principles and social skills training. She also has specialized training in early childhood assessment and intervention, as well as experience working with individuals with anxiety, depression, disruptive behaviors, and mood disorders. Dr. Mancil sees individuals ages 18 months through adulthood. 

Dr. G. Richmond Mancil, BCBA-D

Dr. G. Richmond Mancil, BCBA-D is a doctoral level board certified behavior analyst at SPBS. He earned his doctorate from the University of Florida where he gained clinical experience working with individuals with such complex issues as self-injurious behavior, rumination, and sleep disorders as well as complex communication issues. He has over 18 years’ experience working with individuals with autism spectrum disorders, cognitive disabilities, developmental disabilities, and psychiatric disorders. Prior to moving to being at SPBS, Dr. Mancil created the Master’s program in ABA at Louisiana Tech University and the first BACB™ approved course sequence in northern Louisiana. He also created and directed the Autism and Behavior Analysis Research Institute located at Louisiana Tech University. At the Institute, he oversaw direct services to children and adults, set and oversaw the research agenda as well as provided Organizational Behavior Management to various schools, agencies, and businesses in the state of Louisiana. Before living in Louisiana, he was the executive director of the Kentucky Autism Training Center where he designed and set up model classrooms across the state of Kentucky for preschool, elementary, middle school, and high school students on the autism spectrum.

Click on the PDF to download Dr. Rich Mancil's vita

Suzanne N. Mancil, M.Ed., BCBA

Suzi Mancil is the clinical director with over 15 years’ experience working with children from Birth to 21 years of age. She has experience teaching high school Social Studies, middle and elementary school Spanish, elementary Remedial Reading and Math, Kindergarten, and Pre-School. She has worked with students with Severe/Profound Intellectual Disabilities and Autism at the high school and elementary school levels. These students were in need of learning functional skills including: basic hygiene, washing hands, potty training, functional communication training (most were non-verbal), as well as assistance with feeding and mobility. She has also enjoyed and had the privilege to work with students with emotional and behavior disorders. Suzi became interested in Applied Behavior Analysis almost immediately after receiving her Master of Education in Special Education (with emphasis in teaching people with Intellectual Developmental Disabilities). She realized very quickly that the science of ABA could be applied to help all her students enjoy school and reach his/her full potential. She began studying ABA via Florida Institute of Technology. While studying for her BCBA, she gained experience working in-home and in clinical settings with children at varying levels of the Autism Spectrum. Applied Behavior Analysis has been incorporated into all aspects of Suzi's life. She truly believes in this science and has used it to bring about long-lasting changes that improve the quality of life for everyone she knows, including herself. Her mantra is a quote by B.F. Skinner: "...have you the courage to take up and wield the science of behavior for the good of mankind?"

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