Our Faculty

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Our Department of Radiation Oncology includes 57 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
Memorial Sloan Kettering Radiation Oncologist Simon N. Powell
Simon N. Powell

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

Residency Program Directors
Memorial Sloan Kettering radiation oncologist Lior Braunstein
Lior Braunstein

Residency Program Director

Daniel Gorovets, Memorial Sloan Kettering radiation oncologist
Daniel Gorovets

Associate Program Director

Carla Hajj, Memorial Sloan Kettering radiation oncologist
Carla Hajj

Associate Program Director, Medical Student Clerkship Director

Radiation Oncology Faculty
Kaled M. Alektiar, MD, FASTRO
Kaled M. Alektiar

Director, Gynecologic Radiation Oncology; Director, Sarcoma Radiation Oncology

Memorial Sloan Kettering radiation oncologist Samuel Bakhoum
Samuel F. Bakhoum

Assistant Attending Radiation Oncologist

Memorial Sloan Kettering radiation oncologist Christopher Barker
Christopher A. Barker

Vice-Chair, Clinical Research, Department of Radiation Oncology

Memorial Sloan Kettering radiation oncologist Lior Braunstein
Lior Z. Braunstein

Assistant Attending Radiation Oncologist

Memorial Sloan Kettering radiation oncologist Christopher Crane
Christopher Crane

Attending Radiation Oncologist

MSK radiation oncologist John Cuaron
John J. Cuaron

Chief, External Beam Radiotherapy: Long Island

Memorial Sloan Kettering radiation oncologist Daniel Gomez
Daniel Gomez

Director, Thoracic Radiation Oncology; Vice Chair of Clinical Operations, Department of Radiation Oncology

Daniel Gorovets, Memorial Sloan Kettering radiation oncologist
Daniel Gorovets

Assistant Attending Radiation Oncologist

Carla Hajj, Memorial Sloan Kettering radiation oncologist
Carla Hajj

Associate Program Director and Medical Student Clerkship Director, Radiation Oncology Department, Memorial Sloan Kettering Cancer Center

Memorial Sloan Kettering radiation oncologist Daniel Higginson
Daniel S. Higginson

Assistant Attending Radiation Oncologist

Memorial Sloan Kettering radiation oncologist Brandon Imber
Brandon Imber

Assistant Attending Radiation Oncologist

Marisa A. Kollmeier, MD
Marisa A. Kollmeier

Associate Attending Radiation Oncologist

Nancy Y. Lee, MD, FASTRO
Nancy Y. Lee

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

Sean McBride, MD, MPH
Sean McBride

Chief, External Beam Radiotherapy: Manhattan

Memorial Sloan Kettering radiation oncologist Beryl McCormick
Beryl McCormick

Attending Radiation Oncologist

Nadeem Riaz, MD, MSc
Nadeem Riaz

Associate Director, Genomics Operations, Immunogenomics and Precision Oncology Platform

Andreas Rimner, MD
Andreas Rimner

Director, Thoracic Radiation Oncology Research

MSK radiation oncologist Paul Romesser
Paul Romesser

Assistant Attending Radiation Oncologist

Adam Schmitt, MD
Adam Schmitt

Assistant Attending Radiation Oncologist

Memorial Sloan Kettering radiation oncologist Suzanne Wolden
Suzanne L. Wolden

Director, Pediatric Radiation Oncology

Abraham J. Wu, MD
Abraham J. Wu

Vice Chair, Graduate Medical Education Committee

Memorial Sloan Kettering radiation oncologist Amy Xu
Amy Xu

Co-Director, Inpatient Radiation Oncology Consult (IROC) Service, Department of Radiation Oncology

Joachim Yahalom, MD, FACR
Joachim Yahalom

Attending Radiation Oncologist

Yoshiya (Josh) Yamada, MD
Yoshiya (Josh) Yamada

Co-Chief, Multi-Disciplinary Spine Tumor Service

Memorial Sloan Kettering radiation oncologist Divya Yerramilli
Divya Yerramilli

Co-Director, Inpatient Radiation Oncology Consult (IROC) Service, Department of Radiation Oncology

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