Dr. Timothy D. Shafman

  • MD
  • Radiation oncologist
  • Spoken languages English


Timothy D. Shafman, MD graduated with honors from Harvard Medical School and spent the first ten years of his career conducting research on cancer-related issues and taking care of patients with brain tumors and lung cancer. Dr. Shafman joined the GenesisCare Oncology team in June of 2004 and has served as our National Medical Director since 2014. In this role, he is involved in clinical and operational management for radiation therapy services throughout the company. Dr. Shafman is also the Medical Director of our Rhode Island and Massachusetts regional networks. He has published over 50 peer-reviewed articles on a range of topics including lung cancer, brain tumors, breast cancer and the genetics of radiation sensitivity.



  • Brandeis University, Bachelor of Arts, Waltham, MA
  • Harvard Medical School Massachusetts Institute of Technology, Health Science & Technology, Medical Degree, Cum Laude, Boston, MA


  • Harvard Medical School Joint Center for Radiation Therapy, Radiation Oncology, Chief Resident, Boston, MA


  • Brigham & Women’s Hospital, Internal Medicine, Boston, MA



  • Stereotactic body radiotherapy with adjuvant systemic therapy for early-stage non-small cell lung carcinoma: A multi-institutional analysis.
  • Multi-institutional analysis of stereotactic body radiation therapy for operable early-stage non-small cell lung carcinoma.
  • Patient-reported quality of life after stereotactic body radiation therapy vs. moderate hypofractionation for clinically localized prostate
  • Patient-reported quality of life after stereotactic body radiation therapy vs. moderate hypofractionation for clinically localized prostate
  • A Biologically Effective Dose of ≥105 Gy Is Associated With Improved Overall Survival in Stage I Non-Small Cell Lung Cancer Patients Treated With Stereotactic Body Radiation Therapy
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Johnson SB, Soulos PR, Shafman TD, Mantz CA, Ross R, Finkelstein SE, Collins SP, Suy S, Brower JV, Ritter MA, King CR, Kupelian PA, Horwitz EM, Pollack A, Abramowitz MC, Hallman MA, Faria S, Gross CP, Yu JB, 2016, ASTRO

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Stahl JM, Ross R, Harder EM, Mancini BR, Soulos PR, Finkelstein S, Shafman TD, Husain ZA, Evans SB, Yu JB, Gross CP, Decker RH, 2016, ASTRO

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Hong J, Gross CP, Shafman T, Hu X, Yu J, Ross R, Finkelstein S, Park H, Soulos P, Evans S., 2016, ASTRO

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Finkelstein SE, Forman J, Fernandez E, Chen C, Lieberfarb M, Salenius SA, Shafman T, and Mantz CA, 2016, ASTRO

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Alfred Tinger MD, Elizabeth Chabner MD, Sharon Salenius MPH, Evelyn Staviski RTT, Neil Beitch RTT, CMD, Ulrich Hermanto, MD, John Del Rowe MD, Timothy Shafman MD, 2016, RSNA

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Timothy Shafman's Reviews


based on 90 Ratings 22 Comments


This was a tele visit and met all my expectations


Really nothing. We were very pleased with everything.


It's hard to improve on perfection.


I was very satisfied with the first visit and the following 3 visits for radiation therapy. They have very accommodating

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