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John DiBaise

John DiBaise

Professor of Medicine, Mayo Clinic, Scottsdale/Phoenix

Department of Gastroenterology and Hepatology
Mayo Clinic
13400 E Shea Blvd
Scottsdale, AZ 85259


  • Professor of Medicine, Mayo Clinic, Scottsdale/Phoenix


Dr. DiBaise's research interests relate to the diagnosis and treatment of gastrointestinal motility and nutrition-related disorders. Specifically,he 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. A specialized research interest involves the role gut microbes in the pathogenesis and treatment of gastrointestinal disorders and obesity.


  • BA, Neurobiology and Physiology, Northwestern University
  • MD, University of Nebraska Medical Center
  • Residency, University of Iowa Hospitals and Clinics
  • Fellowship, University of Nebraska Medical Center

Journal Articles


Esra Ilhan, Z., J. K. DiBaise, N. G. Isern, D. W. Hoyt, A. K. Marcus, D. Kang, M. D. Crowell, B. E. Rittmann and R. Krajmalnik-Brown. 2017. Distinctive microbiomes and metabolites linked with weight loss after gastric bypass, but not gastric banding. The ISME Journal 11:2047-2058. (link )


Krajmalnik-Brown, R., Z. Esra Ilhan, D. Kang and J. K. DiBaise. 2012. Effects of gut microbes on nutrient absorption and energy regulation. Nutrition in Clinical Practice 27(2):201-214. DOI: 10.1177/0884533611436116 . (link )


Zhang, H., J. K. DiBaise, A. Zuccolo, D. Kudma, M. Braidotti, Y. Yu, P. Parameswaran, M. D. Crowell, B. E. Rittmann and R. Krajmalnik-Brown. 2009. Human gut microbiota in obesity and after gastric bypass. Proceedings of the National Academy of Sciences of the United States of America 106(7):2365-2370. DOI: 10.1073/pnas.0812600106. (link )


DiBaise, J. K., H. Zhang, M. D. Crowell, R. Krajmalnik-Brown, G. A. Decker and B. E. Rittmann. 2008. Gut microbiota and its possible relationship with obesity. Mayo Clinic Proceedings 83(4):460-469. DOI: 10.4065/83.4.460. (link )