Leigh Grannan

Chief of Clinic Services

Leigh Grannan serves as the Chief of Clinic Services for Hope and leads the teams of The Autism Clinic at Hope and Therapy Relief at Hope. Leigh, a Board Certified Behavior Analyst, earned a Master of Science in Behavior Analysis and Therapy from Southern Illinois University Carbondale in 2004. She worked as a Clinical Instructor and School Coordinator for eight years at The Autism Program of IL at Southern Illinois University Carbondale. There she collaborated with the program’s Speech-Language Pathologist to provide supervision to graduate students in the Behavior Analysis and Therapy and Communication Disorders and Sciences programs. In addition to clinic therapy services, she supervised graduate students providing consultation services in area schools. Leigh is a graduate of the Illinois Leadership Education in Neurodevelopmental and related Disabilities (LEND) training program. She has conducted research in language acquisition with children with ASD and is trained in administration of the Autism Diagnostic Observation Schedule – 2nd Edition. Leigh has provided didactic training’s on a number of topics including challenging behavior, toilet training, and supporting students with ASD in the classroom. 

About us

To provide state of the art services in the most inclusive environment to encourage persons to fulfill their individual potential through evidence based treatment, advocacy and community education.



15 East Hazel Dell Lane
Springfield, IL 62712