Gregory S. Sibley, M.D.
Specialties Radiation Oncology

Primary Location
Radiation Oncology Center
10301 Democracy Lane
Fairfax, VA 22030

View Primary Location

Phone Number: (703) 934-4450

Language(s): English

Gregory S. Sibley, M.D.

Medical School University of Michigan
Internship St. Joseph Mercy Hospital
Residency University of Chicago
Fellowship University of Chicago
Board Certification American Board of Radiology

Dr. Gregory S. Sibley joins Virginia Cancer Specialists after serving as Radiation Oncologist and chair of the Cancer Committee at Sibley Memorial Hospital in Washington, D.C. for 14 years.  Throughout his career, Dr. Sibley has focused on providing the highest quality care in the field of radiation oncology. He has positioned himself as an expert in the multi-disciplinary treatment of cancer and in state-of-the-art radiation treatment planning techniques. Highly active in the medical community, Dr. Sibley is a member of multiple associations, including the American Society of Clinical Oncology and the American Society of Therapeutic Radiation Oncology. Dr. Sibley has authored over 20 peer-reviewed publications, many while on faculty at Duke University Medical Center. Although well-versed in the treatment of multiple cancers, Dr. Sibley has special interest in prostate cancer, having performed over 600 brachytherapy procedures, as well as breast, head and neck, lung, and gastrointestinal cancers. 

In his spare time, Dr. Sibley is an avid hockey player and triathlete.


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