Our Team


Dedicated to authentic Montessori education, the staff at North Shore Montessori School are highly trained, talented, and love working with children. We believe great educators are our best asset.


Tracy Theisen

Head of School

Tracy founded North Shore Montessori School in 2013. Her Montessori leadership journey started when she was first exploring schools for her own children, and led to her passion for this way of being in the universe with children. She has a BA from UW Madison, an MBA from Keller Graduate School, and a Montessori Whole School Leadership Certificate. She is an avid consumer of information and enjoys constantly learning about childhood development and education. Other hobbies include hiking, biking, skiing, and yoga.


Children call her, "Ms. Tracy"


Andrea Hunter

School Administrator & Business Manager

Andrea is a native to the north shore and currently lives in Whitefish Bay with her husband and three kids. She earned her degree in Journalism & Public Relations from the University of Wisconsin – Madison. While at Madison, Andrea was a coxswain on the UW Women’s Crew Team. She loves watching movies with her family, walking along Lake Michigan, photography, and art museums.



Children call her, "Ms. Andrea"


Sarah Dosmann

Enrollment and Communications Specialist

Sarah began with North Shore Montessori School in 2022. She was a Children's House guide for eight years in the public sector prior to this position. Both of her daughters now attend NSMS.  Sarah holds a BA in Journalism from University of Wisconsin Milwaukee, an MA in Education from Loyola University in Baltimore, an AMI primary diploma from the Montessori Institute of San Diego, and a 500 hour yoga certification she received in Vietnam and Italy. She enjoys guiding families to find the best fit for their children's education journey, along with embroidering, yoga, gardening, and traveling.


Children call her, "Ms. Sarah"


Mary Wong

Prima Community Guide

Mary Wong is originally from Laos and started working at North Shore Montessori in May of 2021. She holds a BS in Education from Alverno College, an AMS Primary Diploma from North American Montessori Center, and an AMI 0-3 Orientation Course Certificate from the Montessori Center of Minnesota. Mary enjoys gardening, word puzzles, visiting National Parks, and reading. Her favorite book is Ender's Game by Orson Scott Card.


Children call her "Ms. Mary"


Kathie McCarthy

Prima Community Guide

Kathie joined North Shore Montessori School in 2019. She holds an Associates degree in Early Childhood, an AMS Primary diploma from North American Montessori, and an AMI assistant training. In her free time, she enjoys baking, traveling, gardening, and reading.


Children call her, "Ms. Kathie"


Michelle Bernhardt

Prima Community Support Guide

Michelle joined NSMS in 2023 and resides in the North Shore area with her husband, daughter, and tuxedo cat. She holds a BA and a Master of Social Work from the University of Wisconsin - Milwaukee and  her Montessori Assistant Training from NCMPS. Michelle enjoys reading, hiking, gardening, cooking, and anything to do with animals from hamsters to horses.


Children call her "Ms. Michelle"


Lisa Eisner

Prima Community Support Guide

Lisa joined North Shore Montessori School in 2021. She holds a BA from the University of Wisconsin - Green Bay in Elementary Education, with a math minor. She also has the Montessori Assistant Training from AMI. Lisa enjoys walking, reading, traveling, her dogs, and spending time with her family.


Children call her, "Ms. Lisa"


Lizbeth Contreras

Children's House Guide

Lizbeth joined North Shore Montessori School in 2019. She was born in Illinois and her family is from Mexico. She holds a technical diploma in medical interpreting, has completed an apprenticeship in funeral directing, holds an AMI assistants training, and her AMI Primary Diploma from the Southwest Institute of Montessori Studies. She enjoys hiking, kayaking, traveling, swimming, going on long walks at the lakefront, trying new coffee places, and spending time with family, friends, and pets.


Children call her, "Ms. Liz"


Mia Marcotte

Children's House Support Guide

Mia joined the NSMS team in 2023. She is originally from Arizona and holds a Bachelors of Science degree in Nutrition Communication from Arizona State University.  Mia also has her Montessori Assistant Training from NCMPS.  She enjoys baking sourdough bread,  brewing kombucha, going on adventures, and especially taking long road trips.


Children call her "Ms. Mia"


Ash Morales Fuentes

Children's House Guide

Ash joined NSMS in 2017. He received his Elementary AMI diploma from Cuernavaca México and is currently pursuing the AMI Primary diploma from the Southwest Institute of Montessori Studies in Arizona. Ash is also pursuing his MA in Montessori Education from Loyola University and has a BA from UW-Milwaukee. He has an AMI primary assistant certificate, the Montessori Sports certificate, and a Spanish Language in the Elementary classroom certificate. Ash enjoys reading, traveling, art, running, taking care of his animals, plants, and swimming in his spare time.


Children call him, "Ash"


Charlie Christman

Children's House Support Guide

Charlie joined North Shore Montessori School in 2023. He has a Bachelor's Degree in Art and Illustration and has been an art teacher for all age groups, as well as a preschool teacher previously. Charlie has had his work published and has illustrated two children's books. Aside from drawing and painting, he enjoys live music, museums, and the lakefront.


Children call him, "Mr. Charlie"


Fuachi Hang

Children's House Support Guide

Fuachi joined North Shore Montessori School in 2023. She obtained her BA and Masters in Social Work at the University of Wisconsin-Milwaukee. Fuachi is a mother of two and loves to spend time with her family.  She also enjoys watching movies, cooking, and trying different foods.


Children call her, "Ms. Fuachi" (Foo-chee)


Nidhi Bhojak

Elementary Guide

Nidhi joined North Shore Montessori School in 2017. She holds a BS in Botany Honors from Rajasthan, India and an AMI Elementary Diploma from the Montessori Institute of Milwaukee. She enjoys drawing cartoons, listening to music, dancing, traveling, watching movies, and roller coasters!


Children call her, "Ms. Nidhi"


Matt Pittman

Elementary Support Guide

Matt joined North Shore Montessori School in 2023. He is from San Diego, California and will be receiving a Bachelor of Science in Sports Management this December from Grand Canyon University. Matt enjoys watching sports, playing guitar and piano, writing songs, spending time with family and friends, and being outside.


Children call him, "Mr. Matt"


Jacklyn Kostichka

Spanish Language and Culture Specialist lture Specialist

Jackie has worked in several roles within the NSMS programs since 2016.  Jackie received her MA in Dance/Movement Therapy and Counseling from Drexel University in Philadelphia in 2019 and is a Board Certified – Dance/Movement Therapist.

She loves working with people to help them learn new communication techniques and create connections through music, movement, and culture. Jackie was born in Wisconsin, with an extended family from Mexico City.  She loves to use her love of her culture in her work with others. As a new mother, Jackie likes to play with her daughter, dance, sing, travel, and walk with her family by the lake.


Children call her, "Ms. Jackie"

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