Cancer Research

Suzanne Fletcher

Professor Emerita

Dr. Suzanne Fletcher is an internist and clinical epidemiologist. She has been a leader in breast cancer screening and prevention research for over three decades. She has served as a member of the Canadian Task Force on the Periodic Health Examination, and the U.S. Preventive Services Task Force, and as Chair of the NCI International Workshop on Breast Cancer Screening. Dr. Fletcher also served on the National Cancer Institute Board of Scientific Advisors (1996-2002). She has published over 100 papers and has written numerous chapters in the area of breast cancer screening and prevention.

Robert Fletcher

Professor Emeritus

Dr. Robert Fletcher is an internist and epidemiologist. He graduated from Wesleyan University in 1962 and Harvard Medical School in 1966 and completed residency training in internal medicine at Stanford Medical Center and Johns Hopkins, where he also earned a Master’s degree in Public Health while a fellow in the Robert Wood Johnson Clinical Scholars Program. Dr.

Natasha Stout

Assistant Professor

Natasha Stout, Ph.D., is an Assistant Professor in Population Medicine at the Harvard Medical School. She is a member of the Center for Health Decision Science at the Harvard T.H. Chan School of Public Health. Her research agenda focuses on the use of decision-analytic modeling methods combined with analysis of real-world electronic health data to better understand how existing and emerging medical technologies are implemented and used to their fullest capacity to improve population health. She has particular expertise in screen policy.

Larissa Nekhlyudov

Associate Professor

Dr. Nekhlyudov is an Associate Professor in the Department of Population Medicine at Harvard Medical School as well as a Medical Director and practicing internist at the Brigham & Women's Hospital Primary Care Associates, Longwood.  Prior to moving to the Brigham & Women's Hospital in 2015, she spent over 15 years as a primary care physician at Harvard Vanguard Medical Associates.  Dr. Nekhlyudov's research spans across the spectrum of breast cancer and aims to improve women's decision making and quality of life.


Cancer research at DPM spans five departmental themes, including: patient centered outcomes/comparative effectiveness (Drs. Nekhlyudov, Stout, Toh, Lu, Wharam, and Ross-Degnan), delivery science (Drs. Nekhlyudov, Stout, Lu, Wharam, and Gillick), prevention (Drs. Stout, Wharam and Gilkey), health care systems and policy (Drs. Ross-Degnan and Wharam), and surveillance and public health (Dr. Martin Kulldorff). 

Cancer Research Faculty/Staff


Larissa Nekhlyudov - Associate Professor, Director of Cancer Research



Jason Block

Assistant Professor

Dennis Ross-Degnan 

Associate Professor