Doctors Mayo Clinic has one of the largest and most experienced practices in the United States, with campuses in Arizona, Florida and Minnesota. Staff skilled in dozens of specialties work together to ensure quality care and successful recovery. 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Even if there are no auto-suggestions within the search field, hit "Search" anyway, as you may still get results. Displaying 111-120 out of 176 doctors available Daniel B. Maselli, M.D. Gastroenterologist Rochester, MN Areas of focus: Colonoscopy, Upper endoscopy, Endoscopic sleeve gastroplasty, Endoscopic mucosal resection, Intragastric balloon proced...ure, Transoral outlet reduction, Endoscopic dilation, Endoscopic biopsy, Endoscopic re-cellularization via electroporation therapy, Obesity, Metabolic syndrome, Colonic dysmotility, Gastroesophageal reflux disease, Colon polyps, Diarrhea, Esophageal varices, Constipation, Gastrointestinal bleeding, Fatty liver disease, Esophageal stricture, Gastrointestinal fistula, Gastrointestinal infection Show more areas of focus for Daniel B. Maselli, M.D. Laurence J. Miller, M.D. Internist Gastroenterologist Phoenix, AZ Areas of focus: Pancreatic neuroendocrine tumor, Zollinger Ellison Syndrome Omar Y. Mousa, M.B.B.S., M.D. Transplant Hepatologist Jacksonville, FL Areas of focus: Liver transplant, Post-transplant long-term care, Pre-liver transplant evaluation, Cholangiocarcinoma, Nonalcoholic fat...ty liver disease, Cirrhosis, Acute liver failure, Alcoholic hepatitis, Hepatic encephalopathy Show more areas of focus for Omar Y. Mousa, M.B.B.S., M.D. Joseph A. Murray, M.D. Internist Gastroenterologist Rochester, MN Areas of focus: Celiac disease, Achalasia Vandana Nehra, M.D. Gastroenterologist Rochester, MN Areas of focus: Gastrointestinal disorder, Nutrition (Healthy eating) Cuong C. Nguyen, M.D. Gastroenterologist Phoenix, AZ Areas of focus: Upper endoscopy, Endoscopic ultrasound, ERCP, Gastroesophageal reflux disease Nicholas R. Oblizajek, M.D. Gastroenterologist Rochester, MN Areas of focus: Colonoscopy, Anorectal function testing, Esophagoscopy, Endoscopic procedure, Breath testing, Anorectal manometry, Gast...roesophageal reflux disease, Functional bowel disorder, Gastroparesis, Diarrhea, Functional dyspepsia, Constipation, Pelvic floor dysfunction Show more areas of focus for Nicholas R. Oblizajek, M.D. Philip N. Okafor, M.B.B.S. Gastroenterologist Jacksonville, FL Areas of focus: Colonoscopy, Flexible sigmoidoscopy, Upper endoscopy, Fecal transplant, Capsule endoscopy, Polyp, Gastroesophageal refl...ux disease, Anemia, Irritable bowel syndrome, Helicobacter pylori infection, Fecal incontinence, Chronic constipation, Chronic diarrhea Show more areas of focus for Philip N. Okafor, M.B.B.S. Jody C. Olson, M.D. Hepatologist Rochester, MN Areas of focus: Primary sclerosing cholangitis, Hepatitis C, Wilson's disease, Hepatitis B, Hepatocellular carcinoma, Primary biliary c...holangitis, Cirrhosis, Autoimmune hepatitis, Alcoholic hepatitis, Hepatopulmonary syndrome, Hemochromatosis, Alcoholic liver disease, Portal hypertension, Polycystic liver disease, Fontan-associated liver disease Show more areas of focus for Jody C. Olson, M.D. Amy S. Oxentenko, M.D. Internist Gastroenterologist Rochester, MN Areas of focus: Celiac disease, Peptic ulcer, Gastrointestinal disorder, Gastritis, Malabsorption syndrome Pagination Doctor search PrevPrevious Page Go to page 1010 Go to page 1111 Go to page 1212 Go to page 1313 Go to page 1414 NextNext Page Learn more about the Mayo Clinic Department of Gastroenterology and Hepatology location nearest you: Gastroenterology and Hepatology in Rochester, Minnesota Gastroenterology and Hepatology in Jacksonville, Florida Gastroenterology and Hepatology in Scottsdale, Arizona Request an appointment Conditions treatedDoctors by location and specialty Dec. 05, 2025 Share on: FacebookTwitter Mayo Clinic in Rochester, Minnesota, has been recognized as the best Gastroenterology & GI Surgery hospital in the nation by U.S. News & World Report. Learn more about this top honor Gastroenterology and HepatologyDepartmenthomeSectionsOverviewTests & proceduresConditions treatedDoctorsDoctors by location and specialtySpecialty groupsExpertise & rankingsClinical trialsResearchPatient storiesCosts & insuranceNews from Mayo ClinicReferrals SectionsRequest an AppointmentOverviewTests & proceduresConditions treatedDoctorsDoctors by location and specialtySpecialty groupsExpertise & rankingsClinical trialsResearchPatient storiesCosts & insuranceNews from Mayo ClinicReferrals ORG-20308333 Medical Departments & Centers Gastroenterology and Hepatology