High School Directory


High School Office
(212) 423-5526
hs_office@dalton.org

Attendance Hotline
(212) 423-5490
To report absences, lateness or early dismissal information
24 hours a day.

Lisa Waller
High School Director

Wendy Hirsch
Assistant High School Director

Lisa Stifler
Assistant Director for Curriculum

Kathleen McNary
Assistant Director for Student Activities


Sage Sevilla
Director of Diversity and
Coordinator of Social and Emotional Learning

Francee Sugar
Director, Learning Support Services

Lynn Riggio
Director, Health Services

Josie Diaz
High School Psychologist

Nicholas Lechich
Assistant to the High School Director

Jeffrey Slack
Registrar, Service Learning and Internships Director