ISM Staff Directory

Academic Year 2025-2026


ISM Main Office  |  Phone: 952-918-1800 

Attendance  |  Email: attendance@ism-sabis.net or Phone: 952-918-1802

Administration Team

Michel Nachar

Deputy Director
mnachar@ism-sabis.net 

Tony Tannous

Dean of Students
ttannous@ism-sabis.net

Melanie Gilles

ECE Coordinator PS-PK
Family Liaison PS-12
mgilles@ism-sabis.net 

Sarah Bianucci

Student Life Coordinator
sbianucci@ism-sabis.net

Mahdi Kansou

Executive Director
SABIS ® - North America
mkansou@sabis.net

Diana Abdel Samad

Regional Academic Director 
SABIS ® - North America
dabdelsamad@sabis.net

Head of Departments​

Janet Mahr

H.O.D. Math

Dr. David Hadbawnik

H.O.D. English

Will Brannon

H.O.D. Social Studies

Omar Zouhairy

H.O.D. Science

Sophie Perrin-Smith

H.O.D. French

Patricia Suarez

H.O.D. Spanish

Early Childhood Education

Katie Butters

Preschool 
Teaching Assistant

Tara Dewars

Preschool 
Teacher

Olivia Gredler

Pre-K A 
Teaching Assistant

Syrine Mosbahi

Pre-K A 
Teacher

Sylvia Gonsalves

Pre-K B 
Teaching Assistant

Kaitlyn Manning

Pre-K B 
Teacher

Lower School (Grades K-5)

Mindy Glup

Kindergarten B 
Teacher

Danielle Wishard

Kindergarten A
Teacher

Emily Grossman

Grade 1 
Teacher

Janet Clausing

Kindergarten A/B 
Teaching Assistant

Jessica Student

Grade 3-5
Math Teacher

Amy Nichols

Grade 2
Teacher

Sheila LaCroix

Grade 3-5
Science & Social Studies Teacher

Marianne Pumilia

Grade 3-5
English Teacher

Upper School (Grades 6-12)

Dr. Tina Zigon

English 
Grades 9 - 12​​

Matt Doyle

English
Grades 6 - 9

Grant Goodman

Math
Grades 9 - 12

Greg Willkomm

Math
Algebra Grade 7- 12

Vinton Geistfeld

Math
Grades 9 - 12

Mike Bernstein

Social Studies
Grades 7 - 12

Dr. Chase Fehr

Science
Grade 8 - 12


John Compton

Science
Grade 6 - 12

Preston Finger

Science/Math 
Grades 6 - 12

Will Brannon

Social Studies
Grades 8 - 12

Preeti Devaraj

Computer Science
Grades 1 - 12

Specialists (PS-12)

Jackson Lee

Music
Grades PS - 12

PJ Mack

Art
Grades 1 - 12

John Mangold

Physical Education
Grades PS - 12

Isaiah Gehlen

Swimming (PS-3)
Grades PS - 3

World Language

Sophie Perrin-Smith

French

Patricia Suarez

Spanish

Catherine Marble

French

Sandra Sanchez

Spanish

Maria Blanco

Spanish

Vanessa Westman

Chinese

Administration Support Team

Zach Cohen

Director of College Counseling
zcohen@ism-sabis.net

Brian Nagel

Student Management Coordinator (SMC)
bnagel@ism-sabis.net


Chandha Duwearatchi

Business Manager
cduwearatchi@ism-sabis.net

John Mangold

Athletics & Activities Coordinator
jmangold@ism-sabis.net

Eugene Glukh

Registrar
Exam Coordinator (K-8)

Kaitlyn Palmer

Exam Officer (9-12)
AP Coordinator

Kimberlee Brandt

Admissions Specialist
admissions@ism-sabis.net

Erica Landers

Hopkins/ISM School Counselor 
schoolcounselor@ism-sabis.net

Patricia Suarez

International Student Coordinator 
psuarez@ism-sabis.net

Taylor Cao

Front Desk Coordinator

Amy Frazzini

School Nurse
healthoffice@ism-sabis.net

Barbara Bertomeu

Health Paraprofessional
healthoffice@ism-sabis.net

Sara Reich

Librarian

Brian Mozey

Marketing & Comm. Manager


Andrea Usher

Human Resources Director

Mark Blaubach

IT Director

Dining Hall

Trish DeLude

Sous Chef

Ted Norris

Executive Chef

Baovy Haong

ISM Dining Hall Server

Ehku Thay

ISM Dining Hall Server

Facilities

Joel Reinitz

Maintenance
Facilities Custodian

Mu Law Kaw

Facilities Custodian

Joe Kopet

Facilities Custodian

Trent Mahr

Facilities Manager

Todd Nikolai

Facilities Custodian

Dorm Staff

Noah Bruce

Lead Dorm Parent

Sandra Sanchez

Dorm Parent