Meet the Duffology Team

Duffology Behavioral Insights is led by a dedicated team of professionals who share a passion for improving quality of life through compassionate, evidence-based behavioral and therapeutic consultative services. Founded by Board Certified Behavior Analysts Matthew and Abby Duffy, our multidisciplinary team values collaboration, integrity, and person-centered care. We work closely with individuals, families, and provider agencies to create meaningful, lasting change.

Matthew Duffy, M.Ed., BCBA, LBA Owner & Head of Operations

As the co-founder of Duffology Behavioral Insights, Abby Duffy brings an established history of providing NC Specialized Consultative Services (SCS) for adults with intellectual and developmental disabilities. She specializes in designing practical, function-based behavior plans focused entirely on sustainable, everyday success. Beyond her clinical qualifications, Abby’s most profound perspective comes from home. As a special needs mom, she holds an intimate, firsthand understanding of the daily journey, which fuels her deep passion to empower care teams and deliver meaningful, long-term outcomes for individuals and families alike.

Anthony “Tony” Wing is a Board Certified Behavior Analyst whose career has been shaped by serving alongside individuals, families, and support teams in a variety of roles and settings. He has supported children and adults in homes, schools, clinics, workplaces, communities, and other natural environments. An Asheville native, Tony has spent his career serving Western North Carolina and remains deeply connected to the region. His professional passions include Acceptance and Commitment Training, Verbal Behavior, expanding freedom and autonomy, and developing flexible, non-linear approaches valued by the people receiving services. He is committed to collaborative, socially significant work that promotes genuine choice, positive connections, improved quality of life, and relief of suffering for individuals and families in his community.

Recreational Therapy

Leadership Team

Valerie Scott is a licensed Occupational Therapist who is passionate about the holistic lens that occupational therapy brings to supporting individuals and their families. She has cultivated a rich clinical background across a wide range of treatment environments, including acute rehab settings, homes, schools, sensory clinics, teletherapy practices, and acute behavioral health facilities as a psychiatric OT. This diverse experience allows Valerie to support individuals across the entire lifespan, tailoring her approach to each person's unique strengths, needs, and goals. She has an established history of working closely with NC Innovations Waiver families, focusing her clinical interests on occupational justice, occupational enrichment, and sensory integration. Valerie is dedicated to improving functional independence and everyday quality of life, helping individuals experience a true sense of accomplishment and intrinsic reward. In addition to her clinical work, Valerie is a dancer, a somatic movement educator and therapist, and serves as an adjunct faculty member at Warren Wilson College teaching embodied anatomy and expressive arts.

Karlie Wylie, M.Ed., BCBA, LBA

Valerie Scott, M.S., OTR/L

Serving as the co-founder and Head of Operations, Matthew Duffy has dedicated his career to expanding access to care by developing impactful, multidisciplinary programs across the Asheville region. He is deeply committed to bridging gaps in service delivery, relying on strong, collaborative relationships with families, local community providers, and funders to build seamless, sustainable systems of support. While his professional background is rooted in clinical leadership and regional advocacy, Matthew’s most profound insights are shaped at home. Living the daily reality as a dad to children with autism allows him to bridge the gap between clinician and caregiver—a dual lens that drives his dedication to delivering practical solutions that support care teams and create lasting change.

Staci Kolko brings a deeply rooted history of working alongside individuals with developmental and behavioral disabilities. With a strong foundational background in Special Education and a Master’s in Education focused on Applied Behavior Analysis, she has successfully held diverse leadership roles as a BCBA and Behavior Consultant across clinic, home, group, and school settings. Staci is passionate about bridging the gap for families by helping them navigate and access vital services, meaningful resources, and training to enhance their everyday quality of life. She also remains actively committed to contributing to the broader scientific community through ongoing clinical research and practice.

Celeste R. Helling is a licensed, ASHA-certified Speech-Language Pathologist and credentialed Assistive Technology Professional (ATP) through RESNA, based in Charlotte, North Carolina. She earned her Master of Arts in Speech-Language Pathology from the University of North Texas and has dedicated her career to providing advanced assistive technology services for children and adults with developmental and acquired disabilities. Throughout her career, Celeste has been recognized statewide for her clinical expertise and innovative service, receiving the NC Augmentative Communication Association Honors of the Association, the NC Assistive Technology Expo Award of Excellence, and the NC Vocational Rehabilitation All-Star Award for Creativity. In recognition of her exemplary career and lasting contributions to the state, she was awarded North Carolina’s prestigious Order of the Long Leaf Pine.

Staci Kolko, M.Ed., BCBA, LBA

Sydney Zafran, M.S., CCC-SLP

Behavior Support

Occupational Therapy

Kylie Birdsong, M.S., BCBA, LBA

Karlie Wylie is a Board Certified Behavior Analyst with an extensive background in Applied Behavior Analysis and an established history as a practicing BCBA. She specializes in supporting individuals with autism, ADHD, ODD, IDD, anxiety, and complex behavioral needs through compassionate, individualized, and evidence-based care. Karlie is deeply invested in creating person-centered interventions that foster long-term independence and improve overall quality of life for the individuals she serves. Outside of her clinical practice, she is a proud mom who enjoys connecting with nature through hiking, tending to her plant collection, crocheting, and spending time with her family.

Dayna Miller, M.S., BCBA, LBA

With more than 25 years of experience in the fields of special education and behavioral health, Kylie serves as a Licensed Behavior Analyst dedicated to providing highly individualized, specialized treatment for children, adults, and their families. She specializes in supporting individuals navigating autism, coexisting mental health diagnoses, and traumatic brain injuries, focusing her clinical approach on collaborative, adaptive solutions that empower care teams to achieve sustainable, meaningful progress. Beyond her extensive clinical credentials, Kylie’s most profound perspective is shaped at home in Asheville, North Carolina. Raising two vibrant, adventurous teenagers alongside their dogs keeps her deeply connected to the daily realities of family dynamics—a personal lens that drives her dedication to delivering real-world, compassionate strategies that support care teams and create lasting success for the entire family.

Abby Duffy, M.Ed., BCBA, LBA Owner & Head of Clinical Care

With more than 20 years of clinical experience spanning private practices, school systems, and international programs, Dayna Lauren Miller serves as a Board Certified Behavior Analyst (BCBA), graduate professor, and consultant. She specializes in building collaborative, multidisciplinary services and clinical programs, focusing her approach on practical solutions tailored to the unique, real-world needs of the families and communities she serves. Beyond her extensive clinical and academic credentials, Dayna’s most profound impact is driven by a deep commitment to individual autonomy, safety, and well-being. Her specialized passion for comprehensive sexuality education for individuals with disabilities serves as a vital lens—fueling her dedication to protecting safety, fostering healthy relationships, and empowering every individual to achieve long-term, sustainable success.

Anthony Wing, M.Ed., BCBA, LBA

Sydney is a licensed and ASHA-certified Speech-Language Pathologist with degrees from Kansas State University and licensure in both North Carolina and Florida. She has built a diverse clinical foundation providing comprehensive evaluation and treatment across outpatient rehabilitation, hospitals, home health, and skilled nursing settings. Sydney brings specialized expertise to the team in augmentative and alternative communication (AAC), with an established history of directing complex evaluations, device trials, and custom communication systems. Dedicated to collaborative, family-centered care, she prioritizes training caregivers and interdisciplinary teams to ensure individuals with complex communication needs are fully empowered. Her broad clinical experience spans speech, language, voice, cognitive-communication, feeding, and fluency disorders, supported by advanced training in the Beckman Oral Motor approach and a specialized Sensory Certificate. Sydney is passionate about delivering individualized, evidence-based interventions that help clients achieve meaningful, functional outcomes in their everyday lives.

Celeste R, Helling, M.A., CCC-SLP, ATP

Speech Therapy

Andrea Deming, LRT, CTRS

Andrea Deming is a Licensed Recreational Therapist with over thirteen years of experience supporting individuals with diverse needs, including intellectual and developmental disabilities, autism, traumatic brain injuries, spinal cord injuries, stroke, and amputations. Through Specialized Consultative Services, Andrea collaborates closely with care managers, families, and support teams to develop person-centered recreation therapy plans that enhance quality of life and promote functional independence. Her practice focuses on leisure education, social skill development, recreation exposure, and meaningful activity planning tailored to each individual's specific interests and abilities. A dedicated advocate for community integration, Andrea connects individuals to enriching local programs—including Equine-Assisted Therapies, Expressive Arts Workshops, and Special Olympics—while delivering comprehensive caregiver training to ensure continued engagement beyond direct services.