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8095 Innovation Park Drive, Fairfax, VA 22031


Tobias R Chapman, MD

Tobias Chapman, MD


Board-certified specialties granted by an ABMS Member Board. Learn more about board certification.
Radiation Oncology

Clinical Interest

Areas of special interest identified by the physician or additional training completed.
Colorectal Cancer, Gastrointestinal (GI) Cancer, Head and Neck Cancer, Prostate Cancer, Skin Cancer

Years of Experience





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About Tobias Chapman, MD

Dr. Tobias Chapman is a specialty care physician board certified in radiation oncology. He joined Inova Schar Cancer Institute in 2019 with more than eight years of clinical experience. Prior to joining Inova Schar, he served as faculty at Harvard Medical School’s Beth Israel Deaconess Medical Center in the Department of Radiation Oncology.

Dr. Chapman is trained in all aspects of advanced radiation oncology including proton therapy, and specializes in the treatment of head and neck cancers, gastrointestinal cancers, breast cancer, prostate cancer, hematologic malignancies and the central nervous system. His experience with the latest treatment options and techniques provides patients with the highest level of care.

Originally from Exeter, United Kingdom, Dr. Chapman earned a First Class Masters of Pharmacology from the University of Bath. Before continuing to medical school at Tufts University, he conducted pre-clinical research in both immunology and oncology in the biotechnology industry. Dr. Chapman has published numerous research articles and book chapters on various radiation oncology topics and continues to serve on the Scientific Program Subcommittee for Radiation Oncology with the Radiological Society of North America.


  • Radiological Society of North America (RSNA)
  • Alpha Omega Alpha Honor Medical Society (AOA)
  • American Society for Radiation Oncology (ASTRO)
  • American Brachytherapy Society (ABS)
  • European Society for Radiotherapy and Oncology (ESTRO)
  • Top Doctors, Washingtonian, 2022

Research and Publications

View list of publications from Dr. Chapman's research


Medical Education

Tufts University School of Medicine 2012


Steward Health Care System - Carney Hospital
Training Specialty: Preliminary Medicine
06/25/2012 - 06/25/2013


University of Washington Hospital
Training Specialty: Radiation Oncology
7/1/2013 - 06/30/2017

Board Certification

Radiation Oncology

Hospital Affiliation

Patient Reviews

About Patient Comments

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Inova Provider Referral Services

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This Find a Doctor referral service is sponsored by Inova. It includes Inova employed providers (indicated by “A Member of Inova Medical Group”) and independent practitioners who have obtained the appropriate medical staff privileges at an Inova facility or care site. Independent practitioners are not Inova employees, agents or representatives of Inova and are solely responsible for their provision of medical care to you.

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