About

Leadership Team

Kari Ostrem

Head of School

Jenna King

Associate Head of School for External Affairs

Milton J. Sipp

Assistant Head of School for School Life; Head of the Middle School

Hanifa Barnes

Assistant Head of School for Strategy and Operations

James P. Duval

Associate Head of School;
Head of Lower School

Mike Velez

Head of the Upper School

Anna Hall

Chief of Organizational Learning;
Interim Dean of Faculty


Trustees

Gwen Adolph

Bruce Beal, Jr.

Edem Dzubey ’07
AAEC President

Ebby Elahi

Chloe Epstein

Renata Garcia

John Griffin

Anitra Hadley

Sandra Kim Hoffen ’83
Vice Chair

Mark Hostetter ’77

Christopher James ’93

David Kabiller

Marc Lipschultz

Kelly Mack

Pallavi Nanda
PA President

John Neuwirth 
Vice Chair

Kari Ostrem 
Head of School

David Rhodes

Daniel Rosen ’92
Chair

Cristián Samper

Deborah Sonnenberg

Marc Sternberg

Philip “Tod”
Waterman III ’84

Roy Weathers

Vanessa Wittman

TRUSTEES EMERITI

Michele Cohen

Ted Janulis ’77

Brad Karp

Jane Lisman Katz ’65

Peter Lehrer

Linda Lewis
Lindenbaum ’54

Tom Montag 

William C.W. Mow ’55

David Roberts ’80

Harvey Schulweis

Thomas Strauss

Jeffrey Vinik ’77

David Westin

Tim Zagat, Jr. ’57

Ada Zambetti

Richard Zinman


Lower School Administrative Team 

James Duval
Associate Head of School;
Head of Lower School

Natasha Schmemann
Assistant Head of Lower School,
Pre-K-Grade 2

Ellen Greengrass
Assistant Head of Lower School,
Grades 3-5

Tim Sacks
Lower School Dean

Demetra Caldwell
Lower School Director of Community Engagement

Frances Garcia
Assistant to the Head of Lower School

Barry Sherman
Lower School Administrative Assistant


Middle School Administrative Team

Milton Sipp
Assistant Head of School
for School Life;
Head of Middle School

Mike Sclafani
Assistant Head of Middle School

Megan Abramopaulos
Dean of Students,
Grade 6

Antoinette Quarshie
Dean of Students,
Grade 7

Monika Le
Dean of Students,
Grade 8

Monique Fonseca
Assistant to the Head of School and the Middle School Deans


Upper School Administration Team

Mike Velez
Head of Upper School

Julie Choi
Assistant Head of Upper School

Anna Hall
Chief of Organizational Learning;
Interim Dean of Faculty

Cat Crocker
Dean of Students,
Grade 9

Jennie Picconi
Dean of Students,
Grade 10

Jeremy Clifford
Dean of Students,
Grade 11

Manisha Doran
Assistant Dean of Students,
Grade 12

Meg Johnson
Dean of Students,
Grade 12

James Murray
Assistant to the Upper School Deans



Academic Department Chairs 

Andrew Abate
Computer Science Department Chair

Melissa Miness
English Department Chair

Christina Young
Director of Counseling & Health Education;
Health Department Chair

Laura Honsberger
History Department Chair

Deborah Aschkenes
Interdisciplinary Studies Coordinator

Valerie Keller
Language Department Chair

Anne Nadecki
Math Department Chair

Eva Leon Nathanson
Music Department Chair

Roberta MacIvor
Physical Education Department Chair

Shabari Lasrado
Science Department Chair

Lexie Frare
Theater, Dance & Film Department Chair

Jason Ruff
Visual Arts Department Chair


Athletics

Katie Gendron
Assistant Director of Athletics for
Coaching and Operations

John Pizzi
Director of Athletics

Dan King
Head Athletic Trainer


DEIB on the Hill (Middle & Upper School)

Phyllis Dugan
Director of Diversity Equity,
Inclusion and Belonging

Ciara Everett
Assistant Director of Community Engagement


External Affairs

Jenna King
Associate Head of School for External Affairs

Maia Shulman
Director of Lower School Admission

Tracy Dansker
Director of Middle and Upper School Admission

JP Jacquet
Director of Financial Aid;
Assistant Director of Middle
and Upper School Admission

Chloë May
Assistant Director of Communications

Mary Ludemann
Director of Community Relations

Emily Stone
Chief Development Officer

Marie Capasso
Chief Development Officer



Finance

Sonny Collado
Co-Controller


Learning Research Team

Jenny Buck
Co-Director of the
Learning Research Team

Candy Anderson
Co-Director of the
Learning Research Team


Middle & Upper School Counseling

Christina Young
Director of Counseling & Health Education;
Health Department Chair


Parents Association

Pallavi Nanda
President of Parents Association


School Store

Frances Aybar
School Store Manager;
Purchasing/ Receiving Agent


Security & Facilities

Mike Galligan
Director of Facilities

Mike McGinn
Director of Security


Service Learning

Rachel Klein
Director of Service Learning


Technology

Jonathan King
Director of Technology

Jen Davenport
Associate Director of Administrative Systems


Transportation

Marcia Siper
Lower School Attendance and Dismissal Manager

Eula Manning
Middle & Upper School Transportation Coordinator