Our Team

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Lindsey McGrew, MBA - Executive Director

Lindsey McGrew is a founder of The Madrone School and has a thirteen year old son with autism. Thus, she understands the importance of quality, measurable services for children with autism and their related costs. She set out to open a school to provide a superior and affordable special education for families in search for an alternative to the public school system. Lindsey is devoted to the success and sustainability of the school and she is responsible for the business aspects of the school as well as the non-profit portion where she spearheads strategic planning and development.  She has a Bachelor of Science in Social Sciences with an emphasis in Communication, Business and Women’s Studies and completed a Master of Business Administration at Seattle University.  She enjoys spending time with her two sons, Grady and Ace, and her husband, Kris. 

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Suzanne Murray, MA, BCBA, LBA - Clinical Director 

Suzanne is excited to be a part of providing The Madrone School students and families with a quality, individualized education grounded in the principles of ABA. She has been working professionally in the field of ABA since 2009 and earned her Master's degree in Teaching as Applied Behavior Analysis from Teachers College at Columbia University. Suzanne is a Board Certified Behavior Analyst and holds teaching certification for special and general education. Within ABA, Suzanne's interests include addressing challenging behaviors, parent training, organizational behavior management, and providing BACB supervision to those preparing to become BCBAs. In her spare time, Suzanne enjoys exploring the great outdoors with her husband, Colin, and her two children, Calvin and Margot. 

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Marli Diestel - Administrative Assistant

Marli is from Northern California and a recent arrival to Seattle. While attending San Francisco State University, she received her Bachelor's of Science in Environmental Science-Natural Resource Management and Conservation with an emphasis in Marine Biology. During this time, she worked on large scale social and environmental justice campaigns and helped create a national nonprofit connecting students around the country to fight against pressing environmental causes. In her free time, Marli volunteers at the Seattle Aquarium, enjoys Seattle coffee, and obsessing over her houseplant collection. 

Anna Parks M.Ed, BCBA, LBA - Redmond Clinical Supervisor
Anna started working in the field of applied behavioral analysis (ABA) in 2016 when she interned at Apex Summer Camp put on by the University of Washington (UW)'s Autism Center. It was there she discovered a passion for working with individuals with disabilities and watching them grow! She has worked as a behavior technician in clinical and home settings, and graduated with her Bachelor's in Psychology from UW. She then pursued her Master's in Special Education: ABA at the University of Washington while completing a fellowship in the Project DATA (Developmentally Appropriate Treatment for Autism) program at the Experimental Education Unit, an inclusive preschool on UW's campus. After graduating, she obtained her BCBA certification while completing an intensive supervisor development program. She is so excited to join the Madrone community, and has a passion for parent training and helping students achieve their highest potential! In her free time, she enjoys exercising, baking, and spending time with those closest to her.

Tiffany Phillips, M.Ed, BCBA, LBA, BCBA Supervisor Early Intervention

Tiffany loves working in schools because of the community, communication, and collaboration that is available in this setting. Tiffany began working in before and after school programs over 10 years ago. It was there that she first started working with students with disabilities. She began modifying all of curriculum to ensure all students could access and be engaged in the program; it was here her passion for autism and ABA began. She studied psychology and education at the University of California, Davis and it is here she developed a passion for early intervention and inclusion. She moved to WA two years ago to pursue her M.Ed in special education, with an emphasis in ABA and graduated in 2019. Other topics she is passionate about include functions of behavior and increasing functional communication. Tiffany lives in Des Moines with her partner and their two cats Ringo and Lucy. Outside work Tiffany loves to be outdoors hiking or by the water. She enjoys cooking, interior design, and training cats. She also plays trombone and performs in the color guard of the Seattle Rainbow City band. 

Steven Sciortino, MS, BCBA, LBA BCBA Supervisor—Woodinville Campus

I started within the field as a volunteer for The Challenger League, a summer baseball organization for children with disabilities during the summers between 2011-2015. While I was working toward my Masters in ABA at Drexel University, I worked at a Bancroft NeuroRehab as a cognitive therapist for clients who sustained traumatic brain injuries. After working in TBI, I moved to Central Pennsylvania working for The Vista School, a private school for students with ASD and other disabilities established by a family for their sons. During my time at The Vista school I worked as a Behavior Technician in the High School and then a Behavior Consultant with the Adult Services program within Vista. Professionally I enjoy attending Behavior Analytic conferences and reviewing the most up to date journals/articles in regards to children and adults with ASD. While I am not at work I will likely be listening to records, playing my guitar, climbing, or go hiking.

Lexy Breitbarth - Woodinville Lead Teacher

Lexy Breitbarth grew up outside of Portland, Oregon but moved to Washington shortly after graduating Oregon State University with a Major in Human Development and Family Sciences. She has been of the Madrone School team since March 2019 working at both the Redmond and the Woodinville location when it opened in January. She has worked with adults and children with disabilities for 4 years but has found her passion working with kids at the Madrone School. In her spare time she spends time with her dog Scout and cat Skunk outside while enjoying the sun as much as possible. 

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Camylle Yamauchi - Licensed Assistant Behavior Analyst

Camylle started working in the field of Applied Behavior Analysis in 2015 after graduating from Central Washington University with a Bachelor’s degree in Psychology. After working for 4 years in the field, Camylle decided to pursue a Master’s in Applied Behavior Analysis. Camylle will be graduating in December 2020, and plans to achieve her BCBA certification. Camylle has a passion for ABA and helping children grow to their full potential. In her spare time, Camylle enjoys hiking with her 2 dogs and exploring new breweries in the Seattle area.  
 

Czar Nicholas - Redmond Lead Registered & Certified Behavior Technician 

My Name is Czar Nicholas and I am a Registered Behavioral Technician from California. My wife and I are brand new to the PNW! I am very happy to be a part of The Madrone School team! I have been helping people with developmental disabilities for over a year and have implemented individualized programs for children and young adults based on ABA principles that increase communication, self-help, social and play skills. In my spare time my wife and I love going out and trying new restaurants. We’ve been having a good time exploring Washington, the state we call home now.  

Jill Schwartz - Redmond Lead Behavior Technician and Enrichment Coordinator

Jill graduated in 2018 from University of Rochester with degrees in Psychology and Brain and Cognitive Sciences. After graduating, she started working as a BT at an ABA center in Boston. Jill will be pursuing her Masters in ABA at the University of Washington beginning in Fall 2020. Outside of work, Jill enjoys hiking and tending to her plants. 

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Tessa Littlejohn - Woodinville Early Intervention Lead Behavior Technician

Tessa grew up in Kansas, and attended The University of Kansas where she obtained a Bachelor's in Psychology. After graduation she moved to Seattle where she began working in the ABA field. After 3 years in the field, she began pursuing a Master's in Applied Behavior Analysis. In her free time, Tessa enjoys hiking, and spending time with friends.

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Logan Warriner- Woodinville Lead Behavior Technician

Logan is a Registered Behavior Technician. I am so grateful to be working with The Madrone School! I used to be a personal assistant for the elderly while I studied Psychology and German at Western Washington University in Bellingham. I have always been interested in working with children with developmental disabilities and was licensed in November of 2020. I began an Applied Behavior Analysis graduate program with Arizona State University in January of 2021 and am working toward becoming a Board Certified Behavior Analyst. In my spare time I like participating in Irish conversation circles and volunteering with hospice care.