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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.

Falyn Lockenour, M.S., BCBA

Director of Clinical Quality

Falyn Lockenour serves as the Director of Clinical Quality at The Autism Clinic, based in Springfield, Glen Carbon, O’Fallon, and Herrin, IL, Kirkwood, MO and Gallatin, TN. Falyn, a Board Certified Behavior Analyst, began her career at Hope in 2014 as a Behavior Technician Intern while she was working towards her Bachelor of Arts in Psychology at the University of Illinois Springfield. She later earned her Master of Science in Behavior Analysis and Therapy from Southern Illinois University Carbondale in 2017. There she served as a Research Assistant leading and supporting research projects with typically developing children and children with developmental disabilities. She also served as a Teaching Assistant for an Assistant Professor within the Behavior Analysis and Therapy program, where she helped teach undergraduate students pursuing a Bachelor of Science in Behavior Analysis and Therapy. Furthermore, she completed a Graduate Assistantship where she provided in-home behavioral parent training to parents involved with the Illinois Department of Children and Family services. Falyn returned to The Autism Clinic in 2017, where she has spent the majority of her time serving as the Clinical Site Lead at the Glen Carbon location prior to transitioning into her current role as Director of Clinical Quality. Falyn works diligently to ensure all clients at The Autism Clinic receive the highest quality service within their community and that each child reaches their fullest potential. Her clinical interests include functional communication training, ameliorating challenging behavior, promoting rapid skill acquisition, and staff training.

Monica Hammel

Credentialing Manager

Monica has been working in the credentialing field for the last 8 years. Monica comes to Hope from ABA Billing, where she got to know the Hope organization as a client. Monica has supported growth in a variety of businesses by facilitating their contracting and credentialing needs through a number of insurance companies. In her role, she is supporting both Hope Clinical Care and Therapy Relief with their insurance credentialing needs.

Kate Ogilvy

Billing Manager

Kate oversees the billing efforts for The Autism Clinic at Hope, as well as Therapy Relief at Hope. Kate has been with Hope for four years. In her time here, she has held the roles of Intake and Records Specialist, and most recently, Billing Specialist.

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.

Jenny Martin, LBA, BCBA

Director, Gallatin, TN

Jenny Martin has 20 years of experience working with kids with autism. She worked in the school system in Sumner County for over 10 years as a Board Certified Behavior Analyst. Prior to that she was a clinical instructor for The Center for Autism Spectrum Disorders at Southern Illinois University where she trained graduate students to work with children with autism.

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!

Mary Hoerner, M.S.W., BCBA, LBA

Site Lead, Glen Carbon/ Edwardsville, IL

Mary has been a Clinician at The Autism Clinic at Hope since March 2018, and the Site Lead at the Edwardsville (now Glen Carbon) Clinic since July 2020. She has been working with individuals on the Autism Spectrum since September 2012. She earned her bachelor’s degree in Psychology from Eastern Illinois University with a concentration in Pre-Occupational Therapy.  After working with a BCBA during her Occupational Therapy Internship at Sarah Busch Hospital in 2011, she decided to pursue a master’s degree in Social Work, with an emphasis in Applied Behavior Analysis at St. Louis University. Mary completed her practicum at Perando Special Education Cooperative and became a BCBA in 2014. Her clinical interests are in behavior management, play skills, intensive toilet training and functional communication skills.

Kirsten Schaper, M.S., CCC-SLP, BCBA

Site Lead, Herrin, IL

Kirsten Schaper, M.S., CCC-SLP, BCBA is dual certified as a speech/language pathologist and board certified behavior analyst and has provided services for children with autism spectrum disorder since 2004.   From 2004 until 2015, she served as an instructor and clinic director at the Center for Autism Spectrum Disorders at Southern Illinois University – Carbondale where she supervised students providing service in individual and group formats.  She owned and operated her own private practice from 2016 until November 2020, where she treated privately children and through Illinois’s Early Intervention program via in-home services.  In November 2020 she became the clinic site director for The Autism Clinic at Hope in Herrin, IL.  Ms. Schaper is fluent on many teaching procedures, including naturalistic teaching, discrete trial training, the Picture Exchange Communication System, Phonemic Restructuring of Oral Motor Phonetic Targets (PROMPT), and the Early Start Denver Model.  She is also reliability certified in Modules 3 and 4 of the Autism Diagnostic Observation Schedule – 2 (ADOS-2) and has evaluated over a thousand children for the presence of ASD.  Her approach focuses on teaching functional skills that are enjoyable to the child while incorporating developmental sequences and each family’s priorities.   

Melanie Tillman, M.S., BCBA, LBA

Site Lead, Huntsville, AL

Melanie Tillman, M.S., BCBA, LBA, serves as Clinic Site Director of The Autism Clinic at Hope, Huntsville, AL. Melanie, a Board Certified Behavior Analyst, began working with children on the Autism Spectrum in 2001 and earned a Master of Science in Behavior Analysis and Therapy from Southern Illinois University Carbondale in 2004. She worked as a Clinical Instructor and Program Evaluation Coordinator for six years at The Autism Program of IL at Southern Illinois University Carbondale, where she collaborated with University Speech Language Pathologists to provide supervision to graduate students in the Behavior Analysis and Therapy and Communication Disorders and Sciences programs. Melanie also served as the Site Director for The Autism Program of Illinois (TAP) at Southern Illinois University Carbondale. She has provided direct ABA services and supervision in a variety of settings, including Early Intervention, in-home, and clinic-based services for children diagnosed with Autism.

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

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