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Ian Robert Barrows, M.D.

Photo of Dr. Ian Robert Barrows, M.D.
  • Instructor of Medicine

Research Interests

Gut Microbiome, Cardiac Risk Prediction, Hypertension


Dr. Barrows attended the University of Maryland and George Washington University School of Medicine before training in medicine at Medstar Georgetown University Hospital. His research interests include the gut microbiome and cardiac risk prediction. He hopes to pursue training in cardiology in the future. more


  • Instructor of Medicine

Departments / Divisions



  • M.D., George Washington University School of Medicine and Health Science - Washington (District of Columbia) (2016)
  • B.S., University of Maryland (College Park) (Maryland) (2012)

Research & Publications

Selected Publications

Barrows IR, Ramezani A, Raj DS. Inflammation and Oxidative Stress in Hypertension - Partners in Crim. Adv Chronic Kidney Disease. 2019; 26(2):122-130

Ramezani A, Nolin TD, Barrows IR, Serrano M, Buck G, Regunathan-Shenk R, West RE, Latham PS, Amdur R, and Raj DC. Gut colonolization with Methanogenic Arcahea Lowers Plasma Trimethlamine N-Oxide Concentrations in Apolipoprotein e-/- Mice. Nature Scientific Reports. 2018;8(14752).

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