Holiday Hours

With the exception of Inova hospitals, Inova Emergency Care and Inova-GoHealth Urgent Care, all Inova outpatient offices will be closed for the Christmas and New Year's Day holidays – Wednesday, Dec. 25 and Wednesday, Jan. 1.

Some Inova care sites have additional closures for the holidays, which will be noted on the relevant location pages. 

Tobias R. Chapman, MD

Tobias Chapman, MD

Tobias Chapman, MD

Tobias R. Chapman, MD

Specialty
Radiation Oncology
Years of Experience
12
Clinical Interests
Colorectal Cancer, Gastrointestinal (GI) Cancer, Head and Neck Cancer, Prostate Cancer, Skin Cancer
Gender
Male
Locations

8081 Innovation Park Dr
Bldg B
Fairfax, VA 22031

Phone
Fax
571-472-0540

3580 Joseph Siewick Dr
Fairfax, VA 22033

Phone
Fax
703-391-4255

44035 Riverside Pkwy
100
Leesburg, VA 20176

Phone
Fax
703-858-8870

4320 Seminary Rd
Radiation Oncology Dept.
Alexandria, VA 22304

Phone
Fax
703-504-7979
Potomac Radiation Oncology Center

2280 Opitz Blvd
120
Woodbridge, VA 22191

Phone
Fax
703-590-3199

About Tobias R. 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.

Awards/Associations

  • 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 School
Tufts University School of Medicine
Internships
Steward Health Care System - Carney Hospital
Training Specialty: Preliminary Medicine
6/25/2012 - 6/25/2013
Residencies
University of Washington Hospital
Training Specialty: Radiation Oncology
7/1/2013 - 6/30/2017

Patient Reviews

About Patient Comments

The Patient Rating score is an average of all responses to physician related questions on our nationally-recognized Press Ganey Patient Satisfaction Survey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Comments are gathered from our Press Ganey Patient Satisfaction Survey and displayed in their entirety. Patients are de-identified for confidentiality and patient privacy.