Meet The Team

The professionals of The Autism Clinic.

Clinical Leadership

Leigh Grannan, M.S., BCBA

Chief of Clinic Based Services

Leigh Grannan serves as Chief of Clinic Based Services at Hope, located in Springfield, Edwardsville, and O’Fallon, IL and Kirkwood, MO. 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 trainings on a number of topics including challenging behavior, toilet training, and supporting students with ASD in the classroom.

Site Leads 

Joanna Morrissey, M.S., BCBA

Site Lead, Springfield

Joanna, a BCBA, at The Autism Clinic at Hope, has been working with individuals on the Autism Spectrum in various capacities since 2006. She completed her undergraduate degree in Deaf Education from Illinois State University and Lincoln Christian University and subsequently spent 7 years teaching special education. During her time as a teacher, she began working on her Master’s Degree in Behavioral Analysis and Therapy through Southern Illinois University, Carbondale; Joanna graduated with her Master’s in December 2016 and obtained her BCBA credential in May 2016. Her professional interests include organizational behavioral management and supporting children with ASD and their teachers in the classroom.

Falyn Lockenour, M.S., BCBA

Site Lead, Edwardsville

Falyn Lockenour, a Board Certified Behavior Analyst (BCBA), serves as a supervising clinician and clinical site lead at The Autism Clinic in Edwardsville. She has been working with children diagnosed with developmental and intellectual disabilities since 2010. She has provided applied behavior analytic services in a variety of contexts including home, school, daycare, and clinic. She completed her undergraduate degree in Psychology (with a specialization in Developmental Psychology) from the University of Illinois-Springfield. During her undergraduate career she completed her internship hours at The Autism Clinic in Springfield at which time she realized her passion for helping children with autism. She then furthered her education and completed a Master of Science Degree in Behavior Analysis and Therapy from Southern Illinois University – Carbondale (SIUC). At SIUC she served as a research assistant leading and supporting research projects in preschool and clinic settings. Her research on Decreasing Toe-Walking Through Implementation of Feedback and Reinforcement is published in the journal of Education and Treatment of Children and her research on Children’s Physiological Responding during Implementation of Differential Reinforcement and Response Cost is currently in the review process. Her professional interests include ameliorating severe challenging behaviors, functional communication training, promoting rapid skill acquisition, staff and parent training, and supporting children with developmental disabilities in the classroom.

Anna Hogg, M.S., BCBA

Site Director, O'Fallon, IL

Anna Hogg serves as the Site Director at The Autism Clinic at Hope located in O’Fallon, IL. Anna, a Board Certified Behavior Analyst (BCBA), earned a Master of Science in Behavior Analysis and Therapy from Southern Illinois University Carbondale in 2009. Anna has worked with individuals with Autism Spectrum Disorders since 2007 in home, school, community, and clinical settings. Throughout her experience, Anna has collaborated with Speech-Language Pathologists, Occupational Therapists, Psychologists, Social Workers, Medical Doctors, and teachers to provide consistent services for her clients and their families. In addition to clinical work as a BCBA, Anna supervised graduate students in the Applied Behavior Analysis (ABA) program at the University of Missouri while working at the Thompson Center for Autism and Neurodevelopmental Disorders in Columbia, MO. During her five years at the Thompson Center, Anna also conducted and assisted with research in the following areas of ABA: Assessing preference for and reinforcing efficacy of a therapy dog; Animal assisted social skills intervention; Free operant durations and reinforcer assessments; Competing stimulus assessments and parent interview; Tolerating haircutting through differential reinforcement of other behavior; Cultural competence within behavioral skills training; Decreasing problem behavior during haircuts in children with Autism Spectrum Disorder: systematic replication and extension.

Meika Valerio, M.Ed., BCBA, LBA

Site Lead, Kirkwood, MO

Meika has worked with individuals on the Autism Spectrum providing Applied Behavior Analysis services 2011. She completed her undergraduate degree in Psychology from the University of Illinois and Master of Education in Foundations of Applied Behavior Analysis from the University of Cincinnati in December of 2015. Meika has worked at The Autism Clinic in various capacities. She began as an intern and behavior technician in the Springfield clinic in 2013 and transitioned into the role as a lead behavior technician in 2014. Meika obtained certification as a Board Certified Behavior Analyst in 2016 and moved to St. Louis in 2017. Her clinical interests include systematic desensitization, intensive toilet training, and functional communication training. When she’s not in the clinic, she enjoys cheering on the St. Louis Cardinals!

Hope Pavilion
5220 S. Sixth Street, Suite 1700
Springfield, IL  62703

Toll Free: 866-5-ABA-HOPE

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