Timothy R Koch

Timothy R Koch | Editor

Affilation: Georgetown University School of Medicine, USA

Timothy R. Koch, MD, FACG specializes in bariatric gastroenterology.  Dr. Koch is an attending physician in the Section of Advanced Laparoscopic General & Bariatric Surgery at MedStar Washington Hospital Center, Washington, DC.  Dr. Koch is also Professor of Medicine (Gastroenterology) at Georgetown University School of Medicine.

Dr. Koch was trained in free radical chemistry at the Chemistry Division, Argonne National Laboratory, Argonne, IL.  He completed his medical degree at the University of Chicago Pritzker School of Medicine in Chicago, IL where his research training focused on the pathobiology of intestinal diseases.  He then completed a residency in internal medicine, a fellowship in gastroenterology, and a fellowship in gastrointestinal physiology as part of the Clinician-Investigator Training Program at the Mayo Graduate School of Medicine in Rochester, MN. 

Dr. Koch first showed that the structure of the anorectic hormone, human Peptide YY, was distinct from the structure of porcine Peptide YY.  He has reported the importance of treatment of small intestinal bacterial overgrowth for vitamin repletion after bariatric surgery.  His present research interests include studies of the mechanisms of micronutrient deficiencies and malnutrition in the morbidly obese and after bariatric surgery, and the evaluation and management of complications of gastrointestinal surgery.  Dr. Koch has given >75 invited presentations.  He has authored >150 abstracts as well as >100 book chapters and original publications.  He is Editor-in-Chief of the textbook COLONIC DISEASES.   Dr. Koch is a reviewer for multiple national and international journals, and he is on the Editorial Board of multiple journals.

Research Interest:

Gastrointestinal Physiology; Micronutrients; Management of Complications of Bariatric Surgery; Endoscopic Management of Obesity.