Sharon Kistler

Ivy League grad (Princeton BSE '81, Columbia MBA '86) and founder Sharon Kistler (formerly Sharon DeNunzio) has over twenty years of experience successfully coaching and tutoring a diverse group of over 1000 students.

I aim to provide each student with the skills, strategies and pacing designed to maximize test scores and confidence. Tutoring sessions take place at my home, at the student's home, or at a local library. Boarding school students frequently meet in-person over breaks and summer and via Skype during the school year. Parent communication is encouraged to help select the best test(s), target optimal test dates, design the ideal tutoring program, and track progress. Mock testing and analysis is also a key component of my tutoring program.

Fairfield County and Westchester County schools served: Brunswick and Greenwich Academy, Convent of the Sacred Heart, Rye Country Day, King, St Luke's, School of the Holy Child, Fordham Prep, Fairfield Prep, Greenwich High, New Canaan High, Darien High, West Hill High, Byram Hills, Fox Lane High, Harrison High, Mamaroneck High, Larchmont, Scarsdale High, and White Plains High.

Google Reviews

Sharon is an excellent tutor, uses proven diagnostics and partners in the student’s learning and decision-making. She also produces results with her...  Read more
Jan 14, 2026
Heather Sahrbeck
Our daughter did amazingly with Sharon’s help. Super responsive, lots of Grady tips. Both my kids enjoyed working with her! 
Nov 14, 2025
Jennifer Sinclair

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