![Colin Begg](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/223468/main_image/begg_180305_10_1200x800.jpg?h=10d202d3)
Chair, Epidemiology & Biostatistics
![Memorial Sloan Kettering Medical Oncologist Deb Schrag](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/233659/1x1/schrag-debra_210628_020-rt_1200x1200.jpg?h=cd2a7045)
Chair, Department of Medicine, George J. Bosl Chair at Memorial Sloan Kettering Cancer Center
![Memorial Sloan Kettering neurosurgeon Viviane Tabar](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/223552/main_image/msk7752_2_1200x800.jpg?h=10d202d3)
Chair, Neurosurgery
![Charles L. Sawyers](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/223543/main_image/sawyers-charles_210326_003-1200x800.jpg)
Chair, Human Oncology & Pathogenesis
![Memorial Sloan Kettering Radiation Oncologist Simon N. Powell](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/223537/main_image/powell-simon.jpg?h=10d202d3)
Chair, Radiation Oncology
![Ingo K. Mellinghoff](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/223525/main_image/mellinghoff-ingo_180821_18_1200x800-2.jpg?h=10d202d3)
Chair, Neurology
![Kojo S.J. Elenitoba-Johnson, MD](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/268786/1x1/elenitoba-johnson-kojo-220913-008-1200x1200.jpg?h=cd2a7045)
Chair, Department of Pathology and Laboratory Medicine; James Ewing Alumni Chair of Pathology
![Andrew Kung](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/223507/main_image/kung_dr_in-situ_horizontal1_1200x800_0.jpg?h=10d202d3)
Chair, Pediatrics
![Lawrence H. Schwartz](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/265686/1x1/schwartz-lawrence-230206-01-rt_1200x1200_0.jpg?h=cd2a7045)
Chair, Department of Radiology; Hedvig Hricak Chair in Radiology
![Memorial Sloan Kettering Anesthesiologist Gregory Fischer](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/223483/main_image/fischer_1200x800_0.jpg?h=10d202d3)
Chair, Anesthesiology & Critical Care
![Memorial Sloan Kettering Surgeon Jeffrey Drebin](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/223480/main_image/drebin_1200x800c.jpg?h=10d202d3)
Chair, Department of Surgery | Acting Hospital President
![Joseph O. Deasy](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/223477/main_image/524314.jpg?h=10d202d3)
Chair, Medical Physics
![Memorial Sloan Kettering Psychiatrist William S. Breitbart](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/223471/main_image/breitbart-william.jpg?h=10d202d3)
Chair, Department of Psychiatry and Behavioral Sciences
![Tracy Gosselin](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/236905/main_image/gosselin-tracy-220411-079_rt1_1200x800.jpeg?h=10d202d3)
PhD, RN, FAAN, Senior Vice President and Chief Nursing Executive; Enid A. Haupt Chair in Nursing
![Pictured: Joan Massagué](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/26752/main_image/jm_formal-1200x800.jpg?h=10d202d3)
Chief Scientific Officer; Director, Sloan Kettering Institute
![Anna-Katerina Hadjantonakis](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/223486/main_image/kat-hadjantonakis-26-1.jpg?h=10d202d3)
Chair, Developmental Biology
![Christopher Lima](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/223513/main_image/lima-13019-10.jpg?h=10d202d3)
Chair, Structural Biology
![Scott W. Lowe](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/223522/main_image/lowe_180423_05-1200x800.jpg)
Chair, Cancer Biology and Genetics
![Dana Pe’er](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/223528/main_image/peer_3x2.jpg?h=10d202d3)
Chair, Computational & Systems Biology
![John Petrini](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/223540/main_image/petrini_190201_12_1200x800.jpg?h=10d202d3)
Chair, Molecular Biology
![Alexander Y. Rudensky](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/223546/main_image/rudensky_190205_10_1200x800.jpg?h=10d202d3)
Chair, Immunology
![Memorial Sloan Kettering physician-scientist David Scheinberg](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/223549/main_image/msk2265_1200x800.jpg?h=10d202d3)
Chair, Molecular Pharmacology
![Derek Tan](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/223555/main_image/tan-derek-1.jpg?h=10d202d3)
Chair, Chemical Biology
Former Department Chairs
![Memorial Sloan Kettering Medical Oncologist Philip Kantoff](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/112150/1x1/kantoff_170808_1200x1200.jpg?h=cd2a7045)
Former Chair, Department of Medicine
![Memorial Sloan Kettering pathologist David Klimstra](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/340/1x1/klimstra_170320_1200x1200.jpg?h=cd2a7045)
Former Chair, Department of Pathology
![Elizabeth McCormick](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/223666/main_image/mccormick-elizabeth_210301_018-v2_1200x800.jpg?h=10d202d3)
Senior Vice President and Chief Nursing Officer
![Peter Scardino (Emeritus)](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/260236/main_image/scardino-peter2.jpeg?h=10d202d3)
Emeritus
![Richard J. O'Reilly, MD](https://www.mskcc.org/sites/default/files/styles/width_200_1x1/public/node/462/image/o-reilly-richard-1x1.jpg?h=fbf7a813)
Claire L. Tow Chair in Pediatric Oncology Research