Our Leadership Team

Nathaniel W. Coffman, Ed.D.
Head of School & President

“Our students thrive in college and as adults because they are highly skilled, self-motivated learners who know how to succeed both individually and as a part of diverse teams. They know how to take action, build relationships, collaborate and communicate.”

Read more about Dr. Coffman.

Division Heads and School Leadership

Mari Grobschmidt
Head of Upper School

“I am both honored and thrilled to partner with our faculty, staff, students, and families as we collectively foster a caring community while continuing to enrich our pursuit of excellence for each student.” 

Kathy Boero
Head of Middle School & Associate Head of School

“I want to create an environment that provides a strong foundation for skill and social development and supports children to soar and achieve great things!”

Susan Holum
Head of Primary School

“I am inspired by the teachers I work with every day. Their passion, creativity, and knowledge make me want to be better, and watching the students learn and grow is what makes our efforts worth while. The diversity of the student body, and what each individual brings to Prairie, is exciting.”

Aliya Pitts
Chief Advancement Officer

“Prairie is a place where people truly care about the outcome and the process: not only the lessons our students are learning, but how they learn them. Additionally, the Prairie community values every child for who they truly are — and there is nothing more empowering than having the opportunity to truly be yourself.”

Steve Joost
Assistant Head of School for Finance & Operations/C.F.O.

“Prairie prepares students to be leaders and excel at what interests them.”

Lisa Koleske
SHRM-CP, Director of Human Resources

“I value our hard-working faculty who bring their passion, expertise, inspiration and collaboration each day to the classroom for the students and the Prairie community.”