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8095 Innovation Park Drive, Fairfax, VA 22031


Won Kyoo Cho, MD

A member of Inova Medical Group
The doctors of Inova Medical Group are Inova’s premier primary care and specialty physicians, offering top-notch medical expertise, full access to Inova facilities, and the convenience of integrated electronic medical records.
Won Kyoo Cho, MD


Board-certified specialties granted by an ABMS Member Board. Learn more about board certification.
Gastroenterology, Internal Medicine

Clinical Interest

Areas of special interest identified by the physician or additional training completed.
Colonoscopy, Colorectal Cancer, Esophageal Cancer, Gastrointestinal (GI) Cancer, Irritable Bowel Syndrome

Years of Experience





English Korean
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About Won Kyoo Cho, MD

Dr. Won Kyoo Cho is an Inova specialty-care physician board certified in gastroenterology and internal medicine. He joined Inova in 2022 and has been practicing medicine for more than 20 years.

After earning his medical degree from Perelman School of Medicine at the University of Pennsylvania, Dr. Cho completed his residency in internal medicine at Boston University Hospital. He went on to complete a fellowship in gastroenterology and hepatology at Yale University School of Medicine.

Dr. Cho's 23-year medical career includes extensive academic and clinical experience. He served as Associate Professor of Medicine at Indiana University School of Medicine and Professor of Medicine at Georgetown University School of Medicine, as well as Chief of GI/Hepatology at Roudebush VA Medical Center and at Medstar Washington Hospital Center. In addition, he has conducted various basic/translational/clinical research and widely published with research interests that include colorectal cancer/polyps, GI bleeding, gastric intestinal metaplasia, gastroparesis, cholestatic and fatty liver diseases, and cystic fibrosis.


  • American Gastroenterological Association
  • American Association for the Study of Liver Diseases
  • American Society for Gastrointestinal Endoscopy
  • American College of Gastroenterology
  • Diplomate, National Board of Medical Examiners
  • Diplomate, American Board of Internal Medicine
  • Diplomate, American Board of Gastroenterology

Publications (Selected)

  1. Taefi A, Cho WK* and Nouraie M*. Changes of Upper Gastrointestinal Bleeding Mortality Risk and Its Risk Factors over Three Decades. Digestive Disease and Sciences 58:2940-8, 2013.
  2. Sawas T, Al Halabi S, Sayyar M, Cho WK. Systemic Review with Meta-analysis: Patients Receiving Prebiotics and Probiotics Before Liver Transplantation Develop Fewer Infections Than Controls: A Systemic Review and Meta-Analysis. Clinical Gastroenterology and Hepatology 13:1567-74, 2015.
  3. Sawas T, Cho WK, et. al. End-Stage Renal Disease is Associated with Increased Post Endoscopic Retrograde Cholangiopancreatography Adverse Events in Hospitalized Patients. World Journal of Gastroenterology 24: 4691-7, 2018.
  4. Mandaliya R., et. al. Cho WK. Significant Variation in the Detection Rates of Proximal Serrated Polyps Among Academic Gastroenterologists, Community Gastroenterologists and Colorectal Surgeons in a Single Tertiary Care Center. Digestive Diseases and Sciences 64:2614-21, 2019.
  5. Pothoulakis, I, et. al. Cho WK. Predictors of Colorectal Carcinoma and Inflammatory Bowel Disease in Patients with Colonic Wall Thickening. Manuscript in Press, 2022
  6. Chen B, Jefferson DM, and Cho WK. Impaired Regulatory Volume Decrease and Characterization of Underlying Volume-Activated Currents in Cystic Fibrosis Human Cholangiocyte Cell Line. Journal of Membrane Biology. Manuscript in Press, 2022.
  7. Sayyar M, and Cho WK. The Overlooked Factors that May Lead to Delayed Gastric Emptying. (Manuscript in revision).
  8. AGA Institute Quality Measure Development for the Management of Gastric Intestinal Metaplasia with Helicobacter Pylori. Huang KW, Maratt JK, Cho WK, et. al. Manuscript Submitted.


Medical Education

Perelman School of Medicine at the University of Pennsylvania 1989


Boston University Medical Center
Training Specialty: Internal Medicine
7/1/1989 - 06/30/1992


Yale New Haven Hospital
Training Specialty: Gastroenterology
7/1/1992 - 06/30/1995

Board Certification

Gastroenterology, Internal Medicine

Hospital Affiliation

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