Phoenix, Arizona


DiBaise.John@mayo.edu Clinical Profile


The research interests of John K. DiBaise, M.D., relate to the diagnosis and treatment of gastrointestinal motility and nutrition-related disorders.

Focus areas

Dr. DiBaise focuses on the:

  • Clinical utility of tests used in the diagnosis of motility disorders and the treatment of gastroparesis, chronic intestinal pseudo-obstruction, irritable bowel syndrome, and short bowel syndrome
  • Role of gut microbes in the pathogenesis and treatment of gastrointestinal disorders and obesity
  • Pathogenesis of weight loss that occurs in patients with Parkinson's disease

Significance to patient care

Dr. DiBaise's research aims to improve the tools used to evaluate disorders of gut motility and better understand the role that gut microbes play in the success or failure of surgical weight loss procedures, such as gastric bypass, in obese individuals.

Professional highlights

  • Member, editorial board, F1000 Research, 2012-2016.
  • Associate editor, Nutrition in Clinical Practice, 2011-2015.
  • Member, research committee, American Society for Parenteral and Enteral Nutrition, 2012-2014.
  • Member, research grant review committee, Rome Foundation, 2012-2014.


Primary Appointment

  1. Consultant, Division of Gastroenterology and Hepatology, Department of Internal Medicine

Academic Rank

  1. Professor of Medicine


  1. Fellow - Gastroenterology and Hepatology University of Nebraska Medical Center
  2. Resident - Internal Medicine University of Iowa Hospitals and Clinics
  3. MD University of Nebraska Medical Center
  4. BA - Neurobiology and Physiology Northwestern University

Clinical Studies

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