“I enjoy providing comprehensive preventive and acute medical care to patients with a focus on wellness. I recognize the physician-patient relationship as the keystone of care, and enjoy the relationships I am able to develop.”

Board Certification

  • General Medicine

Areas of Expertise

  • Diabetes
  • General Wellness
  • Hyperlipidemia
  • Hypertension



Georgetown University Hospital
General Medicine
Washington, DC

Medical School

Georgetown University School of Medicine
Doctor of Medicine
Washington, DC

Undergraduate School

Harvard University
Bachelor of Arts
Cambridge, MA

Hospital Affiliated With

Virginia Hospital Center

Personal Interests

Dr. Oscar Ellison enjoys spending time with his family. He also enjoys physical fitness, sailing, and reading.


Dr. Oscar Ellison, III graduated from Harvard College and Georgetown University School of Medicine. His focus has always been on personalized medical care, wellness, and prevention. He has extensive experience treating hypertension, diabetes, and hyperlipidemia. Dr. Ellison has served on numerous boards, including the Arlington Hospital Physicians Organization and the Arlington County Medical Society. He has also served as Vice Chair/Chairman of the Virginia Hospital Center Department of Family Practice. Dr. Ellison is experienced in Phase 3 Clinical Research and is the Medical Director of Atlantic Medical Associates. He has been awarded “Top Doctor” by Washingtonian Magazine, Northern Virginia Magazine, and Washington Checkbook Magazine. An accomplished athlete, Dr. Ellison competed in the Henley Royal Regatta and has won the Oxford triathlon.