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Meet the Team at Great Lakes Center for Autism Treatment and Research

Our team is comprised of experienced, qualified, and compassionate individuals who serve children and families affected by autism and similar disabilities. We partner with individuals and families affected by autism to improve their quality of life through effective and efficient diagnosis, assessment, and behaviorally based treatment. Click ‘View Bio’ below for more information about our team members.

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Jeana joined the Great Lakes Center for Autism Treatment and Research in 2014 as the Clinical Director. She holds a bachelor’s degree in Psychology from Western Michigan University (WMU), a master’s degree in Industrial and Organizational Psychology from WMU and a Ph.D. degree in Behavior Analysis from WMU. Jeana has worked in a variety of settings with individuals with developmental disabilities providing direct services to individuals and developing management systems for staff providing direct services. Jeana is also a Board Certified Behavior Analyst. Before starting at the Great Lakes Center, Jeana worked at the Kellogg Company in the Sales Learning and Development department. Jeana’s research interests involve staff management techniques, performance management processes in human service settings and verbal behavior approaches to language

Jeana Koerber
Ph.D., Board Certified Behavior Analyst-Doctorate, LBA, Executive Director of Autism Services
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Suzy joined the Great Lakes Center for Autism Treatment and Research in 2023. Suzy holds a Bachelor’s degree in Neuroscience from Central Michigan University, a Master’s degree in Educational Psychology with a concentration in Applied Behavior Analysis (ABA) from Baylor University, and a Ph.D. degree in Educational Psychology with a concentration in ABA from Baylor University. Before starting at the Great Lakes Center, Suzy completed her post-doctoral training at Kennedy Krieger Institute in the Neurobehavioral Unit. Suzy is a Board Certified Behavior Analyst at the Doctoral level. Suzy has worked in a variety of settings with individuals with developmental disabilities providing direct services to individuals, supervising pre-service behavior analysts, and training caregivers to implement evidence-based interventions. Suzy’s research interests include effective interventions for decreasing challenging behavior and training caregivers to implement evidence-based interventions.

Suzannah Avery
Ph.D., BCBA-D, LBA, Clinical Director of Licensed Settings
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Jeremy holds a bachelor’s degree in Psychology from Western Michigan University and a master’s degree in Psychology from the University of Nevada, Reno. He became a Board Certified Behavior Analyst in 2008. Jeremy has held a number of leadership positions in human service organizations throughout his career. He has also been in consultant, direct care, and clinical roles across multiple age ranges and in various states. Jeremy’s professional interests are improving organizational systems, performance management, and treatment of challenging behavior.

Jeremy Rafacz
M.A., Board Certified Behavior Analyst, LBA, Outpatient Services Director
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Taylor holds a Bachelor’s degree in Behavioral Science from Western Michigan University and a Master’s degree from The Chicago School of Professional Psychology. Taylor became a Board-Certified Behavior Analyst in 2018 and in November 2019 joined Great Lakes Center for Autism Treatment and Research in the Intensive Residential program. In May 2022, she became the Clinical Supervisor of Licensed Settings. She has worked with many different populations including adults, adolescents, and children diagnosed with Autism. For these individuals, Taylor has worked developing and implementing ABA programs in group homes, day programs, and outpatient settings.  Additionally, she has worked extensively with all age groups within a psychiatric hospital setting. Her areas of interest include assessment and treatment of challenging behaviors and staff training. 

Taylor VanSpronsen
M.S., Board Certified Behavior Analyst, LBA, Clinical Supervisor of Licensed Settings
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Danika joined Great Lakes Center for Autism Treatment and Research in January 2022. She earned a bachelor’s degree in Social Work from Saginaw Valley State University and a master’s degree in Social Work from Wayne State University. Danika has over five years of experience working as a direct care staff and a case manager serving adults with developmental disabilities. Additionally, she has worked as a case manager for over four years with children in the foster care system. Danika has experience working with the Behavior Treatment Committee (BTC), and with providers specializing in psychiatry, mental health education, and treatment. Danika’s passion is working with families and individuals to coordinate care needs ensuring the best treatment is provided so that the individual has the opportunity to experience a meaningful quality of life.

Danika McCormack
MSW, Residential Licensed Settings
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Lindsey Benedict
B.A., BCBA, Intensive Treatment Behavior Analyst
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Stefanie joined the outpatient team at the Great Lakes Center for Autism Treatment and Research in October 2016 as a Board Certified Behavior Analyst. Stefanie received her bachelors in psychology from Western Michigan University before earning her Masters of Science in Behavior Analysis and Therapy from Southern Illinois University – Carbondale (SIU) in 2013. While at SIU she focused on application of behavior analysis and research of behavior analysis principles across the lifespan. After graduating, she moved to Kansas City where she worked as a Behavior Analyst providing in-home therapy services, center based services, and consultative services with residential group homes. Stefanie’s professional interests include teaching engagement and social skills, maintenance of obtained skills across the lifespan, and staff/parent training. She enjoys seeing the application of behavior analysis make an objective and significant difference in the lives of the individuals and the families that she works with.

Stefanie Beattie
M.S., Board Certified Behavior Analyst, LBA, Outpatient Clinical Team Supervisor
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Gretchen joined Great Lakes Center for Autism Treatment and Research (GLC), in 2012, as a team member of the Intensive Residential Treatment Program. She holds a bachelor’s degree in Psychology from Western Michigan University (WMU), a master’s degree in Family Life Education from WMU, and a master’s degree in Professional Behavior Analysis from Florida Institute of Technology. She has worked collaboratively with the behavior clinical team, the medical community, and the families to coordinate the treatment for the individuals served at GLC.  She has worked with adults, adolescents, and children with developmental disabilities in both school and residential settings. Gretchen is also a Board Certified Behavior Analyst. Her interests include the treatment of challenging behavior, parent training, and community integration.

Gretchen Klein
M.S., Board Certified Behavior Analyst, LBA, Outpatient Site Supervisor
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Erin joined the Great Lakes team in 2016 as an ABA-Tutor in the outpatient program. She earned her Bachelor’s degree in psychology from The University of Detroit Mercy and her Master’s degree in behavior analysis from Simmons University. Upon graduation in 2020, she became a Qualified Behavioral Health Professional with the Great Lakes team. In January 2021, Erin was board certified by the BACB and became licensed in February 2021.  Her areas of interest include skills assessment, early intervention, and research.

Erin Callahan
M.S., Board Certified Behavior Analyst, LBA, Outpatient
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Chase Carpenter
M.S., Board Certified Behavior Analyst, LBA, Outpatient and Licensed Settings
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Brody Cavanaugh
M.A., Board Certified Behavior Analyst, LBA, Enhanced Behavioral Supports Program
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Darci has been employed at Great Lakes Center for Autism Treatment and Research as the Business Development Manager since August 2013. She has a bachelor’s degree in Business Administration from Western Michigan University and received her master’s degree in Business Administration from Spring Arbor University in 2015. She has over 15 years of managerial, training, and sales experience in the health care industry.

Darci Stevens
M.B.A., Business Development Manager

Team Members of the Intensive Residential Treatment Program

  • Kayla Boyd, A.S., Licensed Settings Coordinator
  • Justin Hunt, M.A., Intensive Treatment Manager
  • Bryce Miller, Intensive Assistant Coordinator
  • Staci Radtke, Intensive Assistant Coordinator
  • Codi Zamora, M.A., Educational & Behavior Analysis Support Specialist

Team Members of the Elaine Avenue Skill Building Program

  • Emma Morales, B.S., Program Coordinator
  • Amber Slager, Assistant Coordinator
  • Tyronnica Smith, Assistant Coordinator

Team Members of the Outpatient Programs

  • Lauryn Coffey, B.S., Behavioral Analyst Support Specialist
  • Emily Herbert, Behavioral Analyst Support Specialist
  • Josue Miranda-Gonzalez, Outpatient Program Coordinator
  • James Sacha, Treatment Plan Specialist
  • Alexander Greenlee, Treatment Plan Specialist
  • Alexandra Williams, Treatment Plan Specialist

Support Specialists

  • Sam Kohn, Outpatient Support Specialist
  • Meghan Macomber, B.S., Intake and Support Specialist

Interested in learning more? Contact us today.

(269) 250-8200

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