OUR TEAM

At Hopelight, hope is the solid foundation of every service we provide! The caring Hopelight team is dedicated to supporting the “whole” person as a unique individual, full of potential. At Hopelight Behavioral Health, we combine the evidence based science of Applied Behavior Analysis (ABA) with a compassionate personally supportive approach for each and every client. As often as possible, we treat the behavior of the individual within the context of the family to foster and support sustainable positive behavioral change. At Hopelight Behavioral Health, our goal is to empower each and every client to make positive behavioral changes for meaningful personal growth and development.

Shyll Bowen, M.Ed., BCBA

Senior Director

Shyll Bowen is the senior director of Hopelight Behavioral Health.  She holds a master’s degree in special education and is a Board Certified Behavior Analyst (BCBA). Shyll has worked with children, both typically developing and with special developmental needs, for over 40 years. She has taught and served as a behavioral specialist for children in preschool through high school in both private and public settings in the various locations in the United States and abroad. Shyll provides professional development for teachers and parent training courses. Shyll founded Hopelight Behavioral Health in 2015, and it has embodied her passion to bring hope and joy to the lives of our clients and their families as it has grown through the years.

Assistant Director of Behavioral Health

Trevor Dahl, BCBA

Deputy Director

Trevor Dahl serves as the Deputy Director of Hopelight Behavioral Health, bringing both professional expertise and personal passion to his work supporting children and families. Born in California and raised in Longmont, Colorado, Trevor has dedicated his career to helping individuals with disabilities achieve meaningful growth and success.
Trevor joined Hopelight Behavioral Health in 2018 and quickly developed a strong reputation for his commitment to compassionate, evidence-based care. In 2020, he earned his Board Certified Assistant Behavior Analyst (BCaBA) credential, and in 2023, he completed his Master’s degree in Applied Behavior Analysis while earning his Board Certified Behavior Analyst (BCBA) certification.
Trevor’s dedication to the field is deeply influenced by his own life experiences. He was born with Hypoplastic Left Heart Syndrome (HLHS) and Transposition of the Great Arteries, challenges that have shaped his resilience and determination. Rather than allowing these obstacles to define him, Trevor has used them as motivation to advocate for and support children and families navigating their own unique journeys.
As Deputy Director, Trevor is passionate about fostering a welcoming, inclusive, and supportive community at every level of Hopelight Behavioral Health. He is committed to ensuring that clients, families, and team members feel valued, respected, and empowered. Through strong leadership and a genuine desire to serve others, Trevor continues to advance Hopelight’s mission of making a positive and lasting impact in the lives of those it serves.

Hannah Klein, BCBA

Director of Behavior Analyst Supervision

Hannah is a Colorado native who received her BCBA in 2023. She has a passion for working with people with diverse diagnoses and behavioral needs. She works to develop and implement treatment plans to increase skills and decrease interfering behaviors for children and adults in the Longmont community. She has a passion for increasing the quality of life of her clients and their families. In her free time, Hannah enjoys digging into a good mystery novel or spending time with friends

Aubree Grinstead, BCBA

Coordinator of RBT Development and Supervision

John Allen, BCBA

Coordinator of School Based ABA Services

Madelyn Sauer, BCBA

Coordinator of Verbal Behavior Interventions

Kim Dahl, BCaBA

Behavioral Operations Coordinator

Kim is a Colorado Native who graduated with a Bachelor of Arts degree in psychology with a minor in criminology and criminal justice from the University of Northern Colorado. She has been working with this community for two years and is passionate to see the growth our clients make. She is currently pursuing her BCaBA certificate with Florida Institute of Technology in order to better serve the children and families within the Hopelight community.

Tiffany Cooley

Behavior Analyst

Michelle Kramer, OTR/L

Pediatric Occupational Therapist

Michelle is a pediatric occupational therapist with 20 years of experience working with children and their families. She has a passion for working with kids and enjoys building relationships with the families she works with and supporting the child’s development. She has a special interest and expertise in the areas of ADHD, sensory integration, handwriting, coordination difficulties, fine motor skills and social skills. Michelle is a Colorado native and lives in Lyons with her husband and two daughters.

Speech Language Pathologist

Lindsey Wilson, PT, DPT

Physical Therapist