Our Faculty

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Our Department of Radiation Oncology includes more than 30 attending faculty members who are national and international leaders in their respective subspecialties. Our faculty directly contribute to current guidelines and standards of care in radiation oncology, and are active participants in and collaborators with the Radiation Therapy Oncology Group, the National Comprehensive Cancer Network, and the National Cancer Institute of the National Institutes of Health.

Within the department, our faculty offer residents direction, leadership, and support during daily clinical duties as well as in research planning and investigation. They also routinely teach as part of didactic sessions, grand rounds, tumor boards, and clinical conferences.

Learn more about our faculty and their expertise.

Department Chairman
Simon N. Powell, MD, PhD, FRCP
Simon N. Powell

Chair, Department of Radiation Oncology; Enid A. Haupt Chair in Radiation Oncology

Residency Program Directors
Abraham J. Wu, MD
Abraham J. Wu

Residency Program Director

Michael J. Zelefsky, MD
Michael J. Zelefsky

Vice Chair, Department of Radiation Oncology, Clinical Research; Chief, Brachytherapy Service; Steven A. Greenberg Chair in Prostate Cancer Research

Radiation Oncology Faculty
Memorial Sloan Kettering radiation oncologist Daniel Higginson
Daniel S. Higginson
Memorial Sloan Kettering radiation oncologist Beryl McCormick
Beryl McCormick
Memorial Sloan Kettering radiation oncologist Oren Cahlon
Oren Cahlon

Deputy Physician-in-Chief for Strategic Partnerships; Vice Chair, Department of Radiation Oncology

Sean McBride, MD, MPH
Sean McBride
Yoshiya (Josh) Yamada, MD
Yoshiya (Josh) Yamada

Co-Chief, Multi-Disciplinary Spine Tumor Service

Joachim Yahalom, MD, FACR
Joachim Yahalom
Andreas Rimner, MD
Andreas Rimner
Memorial Sloan Kettering radiation oncologist Samuel Bakhoum
Samuel F. Bakhoum
Memorial Sloan Kettering radiation oncologist Lior Braunstein
Lior Z. Braunstein
Memorial Sloan Kettering radiation oncologist Christopher Crane
Christopher Crane

Vice Chair, Department of Radiation Oncology

MSK radiation oncologist John Cuaron
John J. Cuaron

Chief for External Beam Radiotherapy, Long Island

Memorial Sloan Kettering radiation oncologist Erin Gillespie
Erin Gillespie
Memorial Sloan Kettering radiation oncologist Daniel Gorovets
Daniel Gorovets
Nancy Y. Lee, MD, FASTRO
Nancy Y. Lee

Vice Chair, Department of Radiation Oncology; Service Chief, Head & Neck Radiation Oncology; Director, Proton Therapy

Nadeem Riaz, MD, MSc
Nadeem Riaz

Associate Director of Genomics Operations, Immunogenomics and Precision Oncology Platform

MSK radiation oncologist Paul Romesser
Paul Romesser
Adam Schmitt, MD
Adam Schmitt
Memorial Sloan Kettering radiation oncologist C. Jillian Tsai
C. Jillian Tsai

Director, Metastatic Disease Radiation Oncology Research

Dr. Justin Voog
Justin Voog
Suzanne L. Wolden, MD, FACR
Suzanne L. Wolden

Director, Pediatric Radiation Oncology

Abraham J. Wu, MD
Abraham J. Wu

Residency Program Director

Memorial Sloan Kettering radiation oncologist Amy Xu
Amy Xu
MSK radiation oncologist T. Jonathan Yang
T. Jonathan Yang

Director, Metastatic Disease, Department of Radiation Oncology

Memorial Sloan Kettering radiation oncologist Divya Yerramilli
Divya Yerramilli
Michael J. Zelefsky, MD
Michael J. Zelefsky

Vice Chair, Department of Radiation Oncology, Clinical Research; Chief, Brachytherapy Service; Steven A. Greenberg Chair in Prostate Cancer Research

Marisa A. Kollmeier, MD
Marisa A. Kollmeier
Kathryn Beal, MD
Kathryn Beal
Memorial Sloan Kettering radiation oncologist Christopher Barker
Christopher A. Barker

Director of Clinical Investigation, Department of Radiation Oncology

Kaled M. Alektiar, MD, FASTRO
Kaled M. Alektiar