About ACI

Executive & Director Profiles

Nancy Champlin, BCBA, is the owner and CEO of ACI Learning Centers located in Colorado, Kansas, Oklahoma, and Texas. Ms. Champlin has worked with children with developmental disabilities for 30 years. She has lectured and trained on principles and procedures derived from applied behavior analysis locally and internationally, as well as conducted and presented research on a behavioral approach to teaching developmental play skills to children with autism.She has developed and distributes materials utilized by professionals and parents. PlayTubs were developed to teach symbolic play skills to preschool-aged children. The Verbal Behavior Analysis Teaching and Tracking (VBATT) Program and The ABLLS-R Data and Task Organizer are both language and learning curriculums for children with autism spectrum disorders and other developmental delays. These tools were developed in conjunction with the Verbal Behavior Milestones Assessment and Placement Program (VB-MAPP) and The Assessment of Basic Language and Learning Skills-Revised (ABLLS-R).
Ian Santus, BCBA, is the Executive Director for ACI Learning Centers. Ian graduated from Western Michigan University with his bachelor’s degree in psychology with an emphasis in applied behavior analysis and received his BCaBA credential in 2011. He also earned a master’s degree from Sage Colleges of Albany in applied behavior analysis with an emphasis on autism and acquired his BCBA in 2013. Ian joined the ACI team in May 2011 and has more than eight years experience in the field of ABA with extensive experience in implementation, training, and understanding of verbal behavior across all ages from children through young adults. He has worked as a behavioral therapist implementing one-on-one behavior intervention, a parent trainer and educator, as well as a supervisor for several programs in the state of Michigan. In addition to his exceptional background, Ian brings his passion for the field of ABA and an unparalleled professionalism to the team at ACI. Ian provides clinic oversight for our learning centers by offering support and training to the BCBA/Clinical Director on location and is a vital member of the ACI team for behavior plan development, research, and program design.
Melissa Schissler, BCBA, is the Regional Director for ACI, she has her Master’s degree in Applied Behavior Analysis with an emphasis in Autism and received her BCBA credential in 2012. Melissa joined the ACI team in 2009 as a therapist and has worked her way up with the guidance, training, and expertise of Nancy Champlin. She has experience and expertise researching and developing social skills packages, developing and implementing behavior intervention plans to increase appropriate behavior and decrease socially significant inappropriate behaviors, and designing individualized, research-based programs for children and adolescents diagnosed with autism. She is responsible for center operations, program development, and staff training at ACI’s KS center.