Who’s Who at Riverdale

Young students standing on a tree trunk in the woods

At Riverdale, we have a robust faculty, staff, and administration so that we can meet the needs of our students and their families. Our class sizes are small, and students have access to many adults who can support them during their educational journey through the school. Parents/guardians will get to know their students’ teachers through our Back to School Nights and Experience Riverdale Day. In case you need to reach someone at School, we have put this webpage together to help.


All School Administration

Dominic Randolph
Head of School

Kari Ostrem
Head of School Elect

Kelley Nicholson-Flynn
Assistant Head of School for Operations

Jenna King
Associate Head of School for External Affairs

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

James Duval
Associate Head of School 
Head of Lower School


Lower School Administrative Team 

James Duval
Associate Head of School
Head of Lower School

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

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

Jessica Delgado
Assoc. Head of LS for Student Life and Institutional Equity

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, Dean of Students for Grade 8

Monika Le
Dean of Students for Grade 7

Antoinette Quarshie
Dean of Students for Grade 6

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


Upper School Administration Team

Tom Taylor
Head of Upper School

Julie Choi
Assistant Head of Upper School

Shelby Stokes
Dean of Faculty

Jeremy Clifford
Dean of Students, Grade 9

Meg Johnson
Dean of Students, Grade 10

Manisha Doran
Assistant Dean of Students, Grade 10

Johnny Hager
Dean of Students, Grade 11

Jannely Almonte Ortiz
Dean of Students, Grade 12

Alex Martinez
Assistant to the Head of Upper School

Jackie Perreira-Skillman
Assistant to the Deans of Grades 11 & 12

Margie Carlo
Assistant to the Deans of Grades 9 & 10


Academic Department Chairs 

Andrew Abate
Computer Science Department Chair

Melissa Miness
English Department Chair

Christina Young
Health Department Chair

Laura Honsberger
History Department Chair

Deborah Aschkenes
Interdisciplinary Studies Department Chair

Valerie Keller
Language Department Chair

Missi Decker-Alifanz
Math Department Chair

Jason Curry
Music Department Chair

Doug McDonald
Physical Education Department Chair

Shabari Lasrado
Science Department Chair

Laura Desmond
Theater, Dance & Film Department Chair

Jason Ruff
Visual Arts Department Chair


Athletics

Samantha Antosiewicz
Asst. Athletics Trainer, Athletics Admin.

Katie Gendron
Director of Athletic Training & Safety

John Pizzi
Director of Athletics


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

Maia Shulman
Director of Lower School Admission

Tracy Dansker
Director of Middle and Upper School Admission

JP Jacquette
Director of Financial Aid/Assistant Director of Middle and Upper School Admission

Pamela Ezell
Chief Communications Officer

Chloë May
Assistant Director of Communications

Mary Ludemann
Director of Community Relations

Ann Grasing
Chief Development Officer

Marie Capasso
Executive Director of Development


Facilities

Mike Galligan
Director of Facilities


Finance

Dan Schultz
Chief Financial Officer


Learning Research Team

Camilla Pfeiffer
Director of the
Learning Research Team


Parents Association

Tiffany Ellis-Butts
President of Parents Association


School Store

Frances Aybar
School Store Manager and Purchasing/ Receiving Agent


Security


Service Learning

Rachel Klein
Director of Service Learning


Student Life and Counseling on the Hill (Middle & Upper School)

Christina Young
Director of Counseling & Health Education


Technology

Jonathan King
Director of Technology

Jen Davenport
Associate Director of Administrative Systems


Transportation

Marcia Siper
Lower School Transportation & Attendance

Eula Manning
Middle and Upper School Transportation