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Raymond H. Mak, MD

Radiation Oncology

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Raymond H. Mak, MD


  • Disease Center Leader, Radiation Oncology, Thoracic Oncology
  • Director of Patient Safety and Quality, Radiation Oncology
  • Director of Clinical Innovation, Radiation Oncology
  • Senior Physician
  • Associate Professor of Radiation Oncology, Harvard Medical School

Clinical Interests

  • Adaptive radiation therapy
  • Image-guided radiation therapy
  • Intensity-modulated radiation therapy
  • Lung cancer
  • Lung metastases
  • Lung nodules
  • Mesothelioma
  • MRI-guided linear accelerator
  • Stereotactic body radiation therapy
  • Thoracic malignancies
  • Thymoma/thymic tumors

Contact Information

  • Appointments617-632-5734
  • Office Phone Number617-632-5734
  • Fax617-394-2667


Dr. Raymond Mak is an Associate Professor of Radiation Oncology at Harvard Medical School and Director of Clinical Innovation, Thoracic Radiation Oncology Disease Site Leader, and Director of Patient Safety/Quality in the Department of Radiation Oncology at Brigham and Women's Hospital/Dana-Farber Cancer Institute.

Dr. Mak received his undergraduate degree from Cornell University and medical degree from Harvard Medical School, trained at the Harvard Radiation Oncology Residency Program, and is board certified in Radiation Oncology.

Dr. Mak has over 10 years of experience in radiation treatment of thoracic malignancies including lung cancer, mesothelioma, and thymomas, and in the clinical application of advanced radiation therapy techniques including stereotactic body radiation therapy.

He has applied stereotactic body radiation therapy for novel indications including the treatment of cardiac arrhythmias. He led the implementation of MR-guided radiation therapy and adaptive radiation therapy program at BWH/DFCI in 2019 and has expertise in these innovative new treatment approaches.

His research interests focus on developing genomic and imaging biomarkers to predict radiation therapy response and toxicity for lung cancer patients, and applying artificial intelligence techniques to automate radiation therapy planning and improve patient care. He has expertise in developing new methods to reduce the risk of cardiac and pulmonary toxicity for patients receiving radiation therapy.


  • Harvard Radiation Oncology Program, Radiation Oncology

Medical School:

  • Harvard Medical School


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