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Our Growing Team

Nice to Meet You!

Management Team
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Emily White, M. Ed, BCBA

Co-Founder | Chief Executive Officer

Emily is a Board Certified Behavior Analyst and has been practicing Applied Behavior Analysis since 2012. Emily has a Master's Degree in Autism and Applied Behavior Analysis and most recently worked as the Behavioral Health Director for the Colorado Department of Human Services. Emily specializes in treating severe problem behavior in teens and young adults with co-occurring diagnoses.  

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Maddie Reid, M.S., BCBA

Co-Founder | Chief Operating Officer

Maddie is a Board Certified Behavior Analyst and has been practicing Applied Behavior Analysis since 2007. Maddie has a master's degree in Human Services Management and a passion for Organizational Behavior Management. Maddie has extensive experience working with people with Autism Spectrum Disorder and other developmental disabilities. Maddie has also consulted in employee wellness and behavior-based safety with a Fortune 500 company. Clinically, Maddie specializes in working with children and teens across the autism spectrum.  In her free time, Maddie owns a greeting card company and enjoys time with her partner and 2 pups. 

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Ms. Elton, DO.g.

Unofficial Mascot

Elton is a 8-year-old Blue Heeler/Chihuahua mix, hailing from a wonderful rescue organization in North Carolina. Elton is the epitome of the quote, "every good Behavior Analyst has a bad dog at home". Due to the varying allergies of the individuals we serve, Elton, unfortunately, won't be around the Evoke center much, but she is happiest snoozing away at home, anyway. 

Administrative Team​
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Julie Klehr

Administrative Coordinator - Evoke South

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Diane Lucas

Scheduling & Intake Coordinator

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Matt Ledesma

Maintenance & Facilities Technician

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Aly Mondragon

Administrative & HR Generalist - Evoke North

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Keri Davis, MA

Colorado Licensed Teacher

Utilization Specialist

Clinical & Educational Team
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Natalie Castelluccio, MS, BCBA

Day Treatment Director - Evoke North

Natalie is originally from the Boston area and moved to Denver in 2018. She earned her master's degree at Western New England University and has experience working in school, home, and residential settings. Natalie has been working in the field since 2013, and has been a BCBA since 2018. In her free time, she enjoys exploring Colorado to find new pizza places to try!

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Mary Howell, MA, BCBA

Clinical Services Director - Evoke South

Mary has been practicing Applied Behavior Analysis since 2011 and has been a Board Certified Behavior Analyst since 2015. She graduated from Western Michigan University and worked in San Jose, California before moving to Denver in 2017. She has worked with a wide variety of clients of varying ages and diagnoses in home, school, and center settings. In her free time, she enjoys hiking and cuddles with her pug, Henry!

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Cheyenne Mickelson, MA, BCBA

Clinical Coordinator- Evoke North

Cheyenne has been in the field of Applied behavior Analysis since 2016. She completed her master's degree in Autism and Applied Behavior Analysis at Ball State University and obtained her Board-certified Behavior Analyst certification in 2020. Cheyenne has experience working with children and adults with a variety of diagnoses and backgrounds across multiple settings such as center-based, in-home, schools, and community settings. Cheyenne has a passion for Severe Behavior Treatment and teaching Adaptive Daily Living Skills. Outside of the center, Cheyenne enjoys checking out concerts, new restaurant spots, and going out in nature.

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Elizabeth LeFever, MA, BCBA

Clinical Coordinator- Evoke South

Elizabeth is a Board Certified Behavior Analyst and has been practicing Applied Behavior Analysis since 2015. She earned her Master’s degree in Professional Behavioral Analysis at Florida Institute of Technology in 2017. Elizabeth has experience working with children with a variety of diagnoses in center, home and community settings. Additionally, Elizabeth has a passion for Organizational Behavior Management (OBM) and staff development. 

Outside of work you can catch Elizabeth taking her dogs Phil and Zev to the dog park, camping, and paddleboarding. 

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Moriah Montiel, MS, BCBA

Clinical Trainer

Moriah is a Board Certified Behavior Analyst and has been working in-field since 2015 and has been certified as a BCBA since 2019. Moriah has a Master’s degree in Psychology with a specialization in Applied Behavior Analysis. She is currently working on her PhD in Applied Behavior Analysis, as well. She has experience working with both children and adults with a variety of developmental and behavioral diagnoses in need of behavioral services in-home, in-school, and in the community. In her free time, she enjoys visual and performing arts, playing with her Great Dane and Dachshund, and being in nature.  

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Alex Elfont, MS, BCBA, LABA

Clinical Supervisor

Alex is a Board Certified Behavior Analyst and Licensed Applied Behavior Analyst. After receiving his Bachelor's degree in Psychology from Temple University in 2015, Alex started as a teacher at The New England Center for Children, working with individuals with ASD. He went on to receive his MS in Applied Behavior Analysis from Western New England University in 2020. In his free time, Alex enjoys exercising and watching horror films!

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Nathan Burns, MA, BCBA

Clinical Supervisor

Nathan is a Board Certified Behavior Analyst who has been working with children on the Autism Spectrum since 2016, and practicing Applied Behavior Analysis since 2019. Nathan holds a Master’s Degree in Special Education and is passionate about helping kids learn and achieve their goals in a way that is meaningful, productive, and enjoyable for them. Nathan has experience providing ABA therapy in a home, school, as well as center-based setting. Clinically, Nathan specializes in working with early intervention kiddos, as well as kiddos with severe challenging behaviors on the Autism Spectrum.

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Karah Brasher, MA, BCBA

Clinical Supervisor

Karah is a Board Certified Behavior Analyst and has been Involved in the autism community since 2013. In 2015 she moved to Colorado and soon after discovered the field of Applied Behavior Analysis. She obtained her master’s degree from Arizona State University in 2020 and found her passion in working with adolescents with severe problem behaviors. In her spare time she enjoys watching movies and taking trips to the mountains with her husband and their two boys.

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Sadie Holler, MA, BCBA

Clinical Supervisor

Sadie is a Board-Certified Behavior Analyst and has been practicing ABA since 2017. Her experience includes in home, day treatment, day programs and center settings. She is a Colorado native and attended Colorado State University for her undergraduate degree. She obtained her master's degree from the University of Northern Colorado and has been involved in the special education world since she was little as she has an older sister with a developmental disability. In her spare time, she enjoys hiking and camping with her husband and cuddling with her cats. 

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De'Angelo Martinez, MA, BCBA

Clinical Supervisor

Coming Soon!

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Mary "Berkeley" Brown, MA, BCBA

Clinical Supervisor

Berkeley is a Board-Certified Behavior Analyst and has been practicing Applied Behavior Analysis since 2017. Berkeley has a bachelor’s in Family and Child Sciences and a master's degree in ABA. Berkeley has experience working with individuals aged 3-23. Her passions include working with individuals with severe challenging behavior and comorbid diagnoses. Her passions outside of work include rock climbing, reading, and spending time with her dogs.

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Megan Booerboom, MA, BCBA

Clinical Supervisor

Megan is a Board Certified Behavior Analyst and has been practicing in the field Applied Behavior Analysis since 2018. Megan has a master’s degree in Special Education with an emphasis in Applied Behavior Analysis with a passion for working with diverse populations of individuals. Megan has worked with a range of individuals from toddlers to geriatric clients providing health care services. Clinically, Megan specializes in working with children and teens across the autism spectrum. In her free time, Megan enjoys reading, exercising and a good brunch on the weekends.

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Myste Hayes, MS, BCBA

Clinical Supervisor

Coming soon!

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Sam Lotter, MSW, LSW

Mental Health Clinician

Samantha is a Licensed Social Worker since June of 2021. Samantha has been practicing ABA for two years. Samantha has had a Master’s Degree in Social Work since 2018. Samantha has a passion for providing mental health services to children with Severe and Challenging Behavior. Samantha recently started practicing DBT therapy with children and teens across the Autism Spectrum and other related disorders.

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Sophia Stäubli, MS

Licensed Special Education Teacher

Coming Soon!

Behavior Specialists & 
Behavior Technicians
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Kathryn E., MA, RBT
Pursuing Board-Certification

Behavior Specialist

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Emily E., MA, RBT
Pursuing Board-Certification

Behavior Specialist

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Lindy S., RBT
Pursuing Board-Certification

Behavior Technician II

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Dana P., RBT
Pursuing Board-Certification
 

Behavior Specialist

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Grace U., RBT
Pursing Board-Certification

Behavior Specialist

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Rachael H., RBT
Pursuing Board-Certification

Behavior Specialist

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Kennedi B., RBT
Pursuing Board-Certification

Behavior Specialist

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Emma H., RBT

Behavior Technician II

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Sophia D., RBT

Behavior Technician II

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Anthony F., RBT

Educational Specialist

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Cat P., RBT
MSW Candidate

Behavior Technician II

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Quay H.

Behavior Technician I

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Ashley C.

Behavior Technician I

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Caitlin R.

Behavior Technician I

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Madison D. 

Behavior Technician I

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Derez D., RBT

Behavior Technician II

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Kaile E.

Behavior Tech I

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Maddy B.

Behavior Technician I

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Shea A., RBT

Behavior Technician II

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Fernando O.

Behavior Technician I

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Alex R.

Behavior Technician I

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Claire M.

Behavior Technician I

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Deborah P.

Behavior Technician I

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Leon F.

Behavior Technician I

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Taylor S., MA, RBT
Pursuing Board-Certification

Behavior Specialist

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Shaelagh N., RBT
Pursuing Board-Certification

Behavior Specialist

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Claire W., RBT
Pursuing Board-Certification

Behavior Specialist

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Josh C., RBT
Pursuing Board-Certification

Behavior Specialist

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Colleen T., RBT
Pursuing Board-Certification

Behavior Specialist

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Zoe B., RBT
Pursuing Board-Certification

Educational Specialist

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Mallorie D., RBT

Behavior Technician II

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Amber M., MBA, BCAT

Behavior Technician II

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Cheyenne Z., RBT

Behavior Technician II

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Haley J., RBT

Behavior Technician II

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Elliot H., RBT

Behavior Tech II

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Steven A., RBT

Behavior Technician II & Facilities Technician

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Carlee K., RBT

Behavior Technician II

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Gerhome W.

Behavior Technician I

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Kate N.

Behavior Tech I

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Jeremy R.

Behavior Technician I

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Liz M.

Behavior Technician I

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Bree C., RBT

Behavior Technician I

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Rotelle' W.

Behavior Technician I

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Savannah F.

Behavior Technician I

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Cody H.

Behavior Technician I

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Aria B.

Behavior Technician I

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Caroline C. 

Behavior Technician I

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Liz L.

Behavior Technician I

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