Dr. Leah Marks is a licensed clinical psychologist and Nationally Certified School Psychologist who provides both therapy and comprehensive evaluations for children and adolescents. She takes an ecological approach to her work, meaning she considers the many systems that influence a child’s development—including home, school, peers, and community settings—to understand how they are functioning across environments.
Whether working as a therapist or evaluator, Leah strives to create a warm, friendly, developmentally appropriate and culturally responsive experience. In therapy, she meets children and adolescents where they are and works collaboratively with families to address emotional, behavioral, developmental, and learning concerns using evidence-based interventions. In evaluations, she takes time to understand each family’s goals, the questions they are hoping to answer, how to best provide realistic recommendations to help children and families across settings. Although she has specialized expertise in early childhood, and behavioral interventions, she has broad experience working with children and adolescents from birth through age 21.
Leah earned her Ph.D. in School Psychology from Illinois State University. She has worked in a variety of school and clinical settings with a particular focus on young children, developmental concerns, autism spectrum disorder, learning differences, ADHD. Her experience includes work in primary care settings, a multidisciplinary developmental clinic, and a clinic specializing in behavioral interventions for young children. She has also worked within the Illinois Early Intervention system. Previously, Leah served as a faculty member and Clinical Coordinator in the School Psychology Program at Loyola University Chicago, where she trained future school psychologists and oversaw clinical training experiences.Currently, she serves as a clinical supervisor for RCC’s training program.
As both a school and clinical psychologist, Leah places a strong emphasis on understanding how a child is functioning across multiple settings. Families can expect detailed, individualized recommendations for home, school, and community environments. Her work is grounded in data-based decision making, and she is committed to providing recommendations that are evidence-based, developmentally appropriate, and tailored to each child’s unique strengths and needs.
Outside of the office, Leah enjoys spending time with family, trying out local coffee shops and playing the violin in community orchestra. She is also an active member of leadership through the National Association of School Psychologists (NASP).
Services Leah provides:
Please note. Dr. Marks will begin accepting clients for assessment and therapy September 1, 2026.
Dr. Marks’s Contact Information:
773-417-6342 ext. 2015
