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.


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, Clinical Director

Calvin has been with ROI since the opening of the Great Lakes Center in 2012. Before coming to ROI, Calvin had primarily worked as a behavioral consultant, assisting families and caregivers in the treatment of individuals with developmental disabilities and acquired brain injury in family home and assisted living settings. As a consultant Calvin regularly worked with individuals being supported by ROI. Calvin’s interests include the assessment of challenging behavior and system wide crisis response. Calvin received his master’s degree in Behavior Analysis in 2011.

Calvin Gage
M.A., Board Certified Behavior Analyst, Chief Administrator

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

Kari holds a bachelor’s degree in Psychology from Western Michigan University and a master’s degree in Applied Behavior Analysis from The Chicago School of Professional Psychology. She is a Board Certified Behavior Analyst and joined Great Lakes Center for Autism Treatment and Research in their intensive treatment program in January 2014. Before coming to the Center, she worked in various settings providing early intervention and behavioral consultation services to children diagnosed with Autism. Additionally, she has provided behavioral services for families within the child welfare system. Her areas of interest include assessment and treatment of challenging behaviors and behavioral applications for health and fitness.

Kari Colwell
M.A., Board Certified Behavior Analyst

Jesse has worked at the Great Lakes Center for Autism Treatment and Research (GLC) since the program opened in the Fall of 2012.  He has worked in both the outpatient and intensive residential treatment programs as a behavior technician, assistant coordinator, outpatient treatment plan specialist, and currently, as an outpatient BCBA.  He has held a BCaBA certification since 2013 and in 2016 completed his M.Ed. from Oakland University in Special Education with an emphasis in Applied Behavior Analysis.  His professional experiences include working in early intensive behavioral intervention classrooms and in a residential setting working on decreasing challenging behaviors with individuals who have been diagnosed with developmental disabilities.  Jesse’s research interests include the assessment, treatment, and reduction of challenging behaviors, teaching social and vocational skills to adolescents diagnosed with developmental disabilities, and parent coaching to help implement skills taught in the center to be used in the home and community.

Jesse Carrington
M.Ed., Board Certified Behavior Analyst

Joey joined the Great Lakes Intensive team in 2013 as a Behavior Technician. During this time he graduated from Western Michigan University with a bachelor’s degree in Psychology and was promoted to the role ​of Assistant Coordinator in the Intensive Residential Program. Over the next 2 years, Joey completed a Master’s degree in special education with an emphasis in Applied Behavior Analysis from Oakland University. Joey received his degree in 2017. Areas of interest include teaching basic principles of behavior analysis to behavior technicians in an applied setting, as well as utilizing the principles of behavior analysis to improve staff retention and overall quality of care to individuals diagnosed with autism.

Joey Hayes
M.Ed., Board Certified Behavior Analyst

Chris received his bachelor’s degree in Behavioral Science from Western Michigan University in June of 2012. Shortly after obtaining his degree he was welcomed as a part of the GLC team when it opened in fall 2012, as a behavior technician. During his time as a behavior technician he worked in the intensive program, as well as in the outpatient program, before taking time off to finish his master’s level research. Chris received his master’s degree in Applied Behavioral Analysis from Western Michigan University in May of 2015, and has since worked in many counties in northern California and southwest Michigan. His experience has brought him into the lives of a broad range of individuals of varying skills levels, ages, and interests where Chris has designed, trained, and implemented behavioral therapies in various settings to address a number of highly-individualized needs. Chris’s experience has fostered a passion for treatment designs which are inclusive of family member education and training and verbal behavior development. Chris’s research interests are in the area of social skills training and development in children and adults, as well as in the area of staff training and performance management systems.

Chris Missias
M.A., Board Certified Behavior Analyst

Rhasheda joined ROI in 2017 as the Contract and Compliance Manager. She holds a Bachelor’s degree in Healthcare Administration and Management from Davenport University. Rhasheda employs a wide range of resources in corporate compliance, quality and operational improvement as well as process management. She brings 14 years of experience in working in health and community service programs that promote and partner with children and families to live more meaningful and empowered lives.

Rhasheda Shepherd
B.A., Contract and Compliance Manager

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
Kristi Dumas
M.S., Qualified Behavioral Health Professional
Krzystna Reigel
M.A., Qualified Behavioral Health Professional

Team Members of the Intensive Residential Treatment Program

  • Jennie Bushouse, GLC Coordinator
  • Sam Lopez, M.P.A., Intensive Case Coordination Specialist
  • Gretchen Klein, M.A., Board Certified Assistant Behavior Analyst, Intensive Case Coordination Specialist
  • John Bodjack, B.S., Intensive Assistant Coordinator
  • Sarah Kokott, B.S.W., Intensive Assistant Coordinator
  • Zac Wilson, B.S., Intensive Assistant Coordinator
  • Kerri Wood, B.S. Special Education, Certified EI/LD, Intensive Education/Permanency Specialist

Team Members of the Outpatient Programs

  • Britney DeYoung, B.S., Behavioral Analyst Support Specialist
  • Maddie Hyde, B.S., Behavioral Analyst Support Specialist
  • Josue Miranda-Gonzalez, Outpatient Treatment Plan Specialist
  • Sam Kohn, B.S., Outpatient Treatment Plan Specialist

Support Specialist

  • Meghan Macomber, B.S., Assistant Support Specialist – Heersma Autism Center in Portage
  • Ali Howard, B.A., Assistant Support Specialist – Lawrence Autism Center in Galesburg
  • Heather Firestine, Billing Specialist

Interested in learning more? Contact us today.

(269) 250-8200

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