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Ziad Gellad, MD



Dr. Gellad is a health services researcher, Core Investigator at the Center for Health Services Research in Primary Care; Assistant Professor of Medicine in the Duke Division of Gastroenterology, and a Category A Faculty member with the Duke Clinical Research Institute. His research, supported by a VA HSR&D Career Development Award, focuses on developing a simulation-based intervention to expand the colorectal cancer screening capacity of the VHA through improved endoscopy unit efficiency. The award will also further prepare him to conduct independent research, guided by implementation theory, on the dissemination of simulation-guided systems redesign more broadly within the VHA.  In addition to Dr. Gellad's CDA, some of his research interests are in: the quality and value of healthcare; healthcare systems engineering and decision analysis; outcomes research in Colorectal Cancer Screening; and the translation of quality research into practice.


  • 2003 M.D., Johns Hopkins School of Medicine
  • 2002 M.P.H., Johns Hopkins School of Public Health
  • 1997 B.A., Haverford College


  • 2014-present Core Investigator, Center for Health Services Research in Primary Care, Durham VA Medical Center
  • 2011-present Category A Faculty, Duke Clinical Research Institute
  • 2009-present Assistant Professor of Medicine, Division of Gastroenterology, Department of Medicine, Duke University
  • 2012-2014 Physician Consultant, The Carolinas Center for Medical Excellence, Cary, NC 
  • 2009-2014 Research Associate, Center for Health Services Research in Primary Care, Durham VA Medical Center
  • 2006-2009 Fellow, Gastroenterology, Duke University Medical Center
  • 2004-2006 Resident, Internal Medicine, Duke University Medical Center
  • 2003-2004 Intern, Internal Medicine, Duke University Medical Center 


  • 2014 HSR&D Career Development Award, Department of Veterans Affairs
  • 2012 Fellow of the Department of Medicine Faculty Development Academy
  • 2010 American Society For Gastrointestinal Endoscopy (ASGE) Olympus Career Development Award
  • 2008 Gastrointestinal Research Group (GRG) Fellow Travel Award to DDW
  • 2006 Best Poster, Resident Research Grand Rounds, Duke University
  • 2006 Lecoq Award, Recognition of Outstanding SAR Talk, Duke University 
  • 2003 Sol Goldman Award for Excellence in Geriatric Medicine, Johns Hopkins
  • 2002 John Hume Award for Academic Excellence and Promise in an MPH Student, Johns Hopkins
  • 1998 President’s Award for Administrative Excellence, Philadelphia University



Site Investigator for the Durham VA Medical Center: A Randomized Trial of Medical and Surgical Treatments for Patients with GERD Symptoms that are Refractory to Proton Pump Inhibitors. VA Cooperative Studies Program #573. March 2012- February 2017.

Principal Investigator: Simulation-Guided Systems Redesign in GI Endoscopy. VA HSR&D Career Development Award, Department of Veterans Affairs, April 2015- March 2020.

View Dr. Gellad's Twitter profile

View Dr. Gellad's PubMed Link to see his publications