The Department of Environmental Medicine and Public Health at the Icahn School of Medicine at Mount Sinai has seven active divisions.

Our members of the Division of Biostatistics collaborate with investigators throughout the Mount Sinai Health System in the conduct of research projects, and they pursue their own research on statistical methodology. They design studies, monitor data, and conduct analysis. Many faculty engage our biostatisticians to collaborate on grant applications. Faculty in the Division are course directors for the various courses in biostatistics that are part of the core curriculum in the Graduate School of Biomedical Sciences and core curriculum in the Master of Public Health program.


Chris Gennings, PhD
Director, Division of Biostatistics

Ghalib Bello, PhD

Elena Colicino, PhD

Nicholas DeFelice, PhD

John Doucette, PhD

John Mandeli, PhD

The Division of Environmental Epidemiology furthers the Department of Environmental Medicine and Public Health's work on investigating the role of chemical, biological, and physical environmental factors on human health with the ultimate goal of identifying environmental changes that can be made to improve health for all.

Division Faculty
Susan Teitelbaum, PhD
Director, Division of Environmental Epidemiology

Mathilda Chiu, ScD

Megan Horton, PhD, MPH

Allan Just, PhD

Megan Niedzwiecki, PhD

María José Rosa, DrPH

Perry Sheffield, MD

Shanna Swan, PhD

Dania Valvi, MD, PhD, MPH

Maayan Yitshak-Sade, PhD

The Division of Environmental Health is the academic home for multiple investigators who study the health impact of environmental chemicals on reproductive, respiratory, and neurological health as well as children’s development. Our ultimate goal is protection of the public's health by understanding, elucidating, and preventing diseases that arise from environmental exposures. We have built a large and successful program in children’s environmental health, established a state-of-the-art environmental sciences laboratory, and in the coming years we will initiate new studies, while continuing to expand our training programs to produce the next generation of environmental health researchers. The Division of Environmental Health is directed by Manish Arora, PhD, who is also Vice Chairman of the Department.

Learn more about the Division of Environmental Health

The Division of International Health serves as a resource to facilitate the interaction between researchers at the Department of Environmental Medicine and Public Health and leaders in science and medicine around from the world. 

Learn more about the Division of International Health

The Division of Occupational Medicine is committed to preventing and treating occupational and environmental injury and illness through clinical services, education, and research. The Division’s groundbreaking history in identifying, treating, and preventing occupational-related illness has encompassed a multidisciplinary approach.

Learn more about the Division of Occupational and Environmental Medicine

The Division of Preventive Medicine and Community Health’s mission is to prevent chronic and infectious disease and promote healthy lifestyles in the community that the Mount Sinai Health System serves. Our faculty are involved in many service oriented community projects, community coalitions, outreach, and health services research in East Harlem as well as at The Mount Sinai Hospital.

Learn more about the Division of Preventive Medicine and Community Health

The Division of Social Work and Behavioral Science, in partnership with the Mount Sinai Hospital Department of Social Work Services, is committed to being a transforming presence, an innovator, and an advocate in shaping the future of social healthcare through research, education, and practice. The Division faculty and staff collaborate with clinical and basic sciences departments throughout the Health System, and community social agencies including schools of social work in educating for tomorrow’s practice.

The major activities of the division are:

  • Creating and evaluating programs designed to address the social determinants of health and enhance the health of individuals, families and communities
    • Advancing and disseminating knowledge for effective practice
    • Educating undergraduate and graduate medical students, social work, public health and behavioral science students, locally and globally
    • Preventing and alleviating human suffering by providing services, grounded in empirical research, to individuals, families, groups and communities


Nancy Xenakis, DSW, LCSW, MS