Our Team of Professionals

Here at Peach Tree Clinic we provide a learning environment and encourage all of our therapists to work together to provide your child the highest quality of therapy. Each member of the client's team at PTC undergoes specially designed training. In addition to earning their RBT (Registered Behavior Technician) certification, our techs work under the direct supervision of a Board Certified Behavior Analyst (BCBA).

After completing an initial assessment, the BCBA develops a plan specific to the client which involves the whole family. 

Peach Tree is accredited with most insurance companies and our team of professionals will help families navigate the insurance process. 

Peach Tree Clinic NPI # 1063924330

Lycurgus Johnson

Owner/Business Development


Jeanne Lightbody

BCBA, M. Ed.

Jeanne hails from the east coast where she received her education and field training in Applied Behavior Analysis. She received her undergraduate degree from Pace University and her master’s in educational studies from Manahattanville College. Prior to becoming a Board Certified Behavior Analyst, Jeanne taught preschool for 9 years in Mamaroneck, NY. She and her husband raised their 3 children in Mamaroneck, NY before deciding to go on an adventure. They packed their bags and headed west to the beautiful state of Montana in 2015 and haven’t looked back.

Chele Pint

Medical Biller/Credentialing Specialist

Chele Pint’s two favorite kind of days in Bozeman are a clear blue-sky with white snowcapped mountains surrounding the valley and a warm summer night around the fire with friends after an amazing day of boating!

As a certified medical billing and credentialing specialist she has been working in the Autism world for the past 6 years and loving it.  Prior to this, she worked at the Cozy Nest and a life time ago she was a Respiratory Therapist.

Chele moved to Bozeman 16 years ago with her Husband and two kids, who are now a Junior in High School and a Freshman in college, which seems impossible since she is only 20…..okay…….30……..fine…….40(but that’s as high as she is going!) She spends lots of time outdoors doing all the ing’s: skiing, biking, camping, gardening, boating to name a few.

Braden Bruursema


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Libby Kasmer


Libby Kasmer grew up in Bozeman Montana, bounced around states a little bit, and graduated from Montana State University-Bozeman with a Bachelor’s in Psychology. In her free time, she loves climbing, skiing, and cooking food. Whenever she can find a door frame to do a pullup on, she will be training on it to become a little bit stronger for climbing. When she is not climbing or eating, she can be found sipping a chai at a coffee shop or curling up with her dog, Stella. She is passionate about making a difference in other’s lives and doing something positively impactful. Working at Peach Tree Clinic gives her the opportunity to learn from the kids as well as to teach and watch them grow. 

Megan Padroni



Therapy Puppy


Abby Dawson,

M.Ed., LB, BCBA , Missoula Clinic

In the Spring of 2014, Abby Dawson received her Masters in Special Education with the Applied Behavior Analysis Certification Courses from Montana State University-Billings. She holds a Bachelor Degree in Elementary Education, with an emphasis in Spanish from the University of Montana. Abby first started working with people of diverse abilities 13 years ago, though from early on in her own family, she saw how Autism impacts individuals and their families. Abby moved to Missoula in 2003, and lives here with her husband and twin children. She loves her work because she can watch kids discover their abilities with ABA.

Lawana Patten


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Erica Kaufman


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Katelynn Geist


My name is Katelynn, but many people in the office call me Kate. I am currently pursuing my associates and will then move on to get my bachelors in social work. I have been working with children professionally since 2010, and working as an RBT with children with disabilities since 2017.  I fell in love with ABA after receiving my first job as an RBT, and hope to get my BCBA in the future. Working with children with disabilities is a job that brings me so much joy on a daily basis, and has taught so much about myself. I am so grateful that I have the opportunity to do what I love, and love what I do. 

Ashley Campbell



Kaija Elenko


Kaija Elenko is currently enrolled in the University of Montana Communication Sciences and Disorders department. She will be receiving her BS in the Spring of 2020. She enjoys hiking in the mountains and playing lacrosse. Kaija recently spent four months in Australia as a live-in support person for a nonverbal child high on the autism spectrum. At the same time, she interned at the Darling Point Special School for children with disabilities. Kaija assisted teachers and other specialists with the behavioral and communication needs of children with developmental disabilities ages 5-18 years old, and looks forward to continuing this work here in Missoula. Kaija moved to Montana from a small island outside of Seattle three years ago, and has fallen in love with the wholesome, welcoming, and kind-hearted community here in Missoula. Kaija believes that ABA is a key method, opening the door to hidden potential in children who are limited by autism and other developmental disabilities.  She is happiest when she can connect with children while guiding them to communicate to their full potential. 

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Kristi Ekstrom

Owner/Clinical Director


Jennifer Morrison

RBT Public Relations

Jennifer Morrison was born and raised in the Gallatin Valley.  Jennifer earned her Bachelor’s Degree in Elementary Education with an Emphasis in Early Childhood Education from Montana State University-Bozeman.  Jennifer has spent the last 18 years working with children with disabilities in various capacities.  She is eager to help make a difference in children’s lives.   Jennifer is working towards completing her BCaBA certification, and currently has her Registered Behavior Technician Certification.  During her time away from the clinic, Jennifer enjoys spending time with her husband, three children, and pug.  She enjoys the outdoors and photography.

Angie Fletcher


Tish Sunde



Shea Mahan


Shea Singletary grew up with her younger brother who was diagnosed with Autism Spectrum Disorder (ASD) at the age of two. Shea started working with children of diverse abilities professionally when she was 18 years old. Three years later Shea received her bachelor's degree in Communicative Disorders with an emphasis in Speech Language Pathology. During her last semester of school, Shea also received her Registered Behavior Technician (RBT) certification, so she could help children diagnosed with ASD discover their potential.



Kendra Pearson


Kendra graduated from Brigham Young University Idaho in July of 2015 with her Bachelor’s in Early Childhood Development. Throughout her college career, and shortly after graduating, Kendra worked with adults in in-home treatment centers teaching life skills. Kendra moved to Utah in 2015 to complete her internship doing ABA. While in Utah she worked with troubled teens focusing on skills to help them cope in healthy ways. Kendra also worked as an Early Head Start teacher in Utah for almost two years. She recently moved back to Montana in September where she continued as an Early Head Start teacher. She is excited for the opportunity to be a part of the Peach Tree team and looks forward to helping the children here grow!

We’re Hiring

We are looking for full and part time Registered Behavior Technicians.