Print Departments and specialties 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. Departments that treat this condition Gastroenterology and Hepatology Doctors who treat this condition Edit search filters close Narrow your search By location Jacksonville, FL Rochester, MN By last name Find a doctor whose last name begins with the letter A A Find a doctor whose last name begins with the letter B B active Find a doctor whose last name begins with the letter C C There are no doctors whose last name begins with the letter D D There are no doctors whose last name begins with the letter E E There are no doctors whose last name begins with the letter F F There are no doctors whose last name begins with the letter G G There are no doctors whose last name begins with the letter H H There are no doctors whose last name begins with the letter I I There are no doctors whose last name begins with the letter J J Find a doctor whose last name begins with the letter K K Find a doctor whose last name begins with the letter L L There are no doctors whose last name begins with the letter M M There are no doctors whose last name begins with the letter N N There are no doctors whose last name begins with the letter O O Find a doctor whose last name begins with the letter P P There are no doctors whose last name begins with the letter Q Q There are no doctors whose last name begins with the letter R R Find a doctor whose last name begins with the letter S S Find a doctor whose last name begins with the letter T T There are no doctors whose last name begins with the letter U U There are no doctors whose last name begins with the letter V V Find a doctor whose last name begins with the letter W W There are no doctors whose last name begins with the letter X X There are no doctors whose last name begins with the letter Y Y There are no doctors whose last name begins with the letter Z Z Reset all filters Search Tips Use quotes for phrases. Even if there are no auto-suggestions within the search field, hit "Search" anyway, as you may still get results. Displaying 1-2 out of 2 doctors available Last Name Initial: C Johanna L. Chan, M.D. Gastroenterologist Jacksonville, FL Areas of focus: Colonoscopy, Upper endoscopy, Flexible sigmoidoscopy, Constipation, Gastroesophageal reflux disease, Colon polyps, Gast...rointestinal bleeding, Peptic ulcer, Diarrhea Show more areas of focus for Johanna L. Chan, M.D. Nayantara Coelho-Prabhu, M.B.B.S. Gastroenterologist Rochester, MN Areas of focus: Colonoscopy, Upper endoscopy, Endoscopic mucosal resection, Balloon assisted endoscopy, Endoscopic submucosal dissectio...n, Enteral stenting, Inflammatory bowel disease, Colon polyps, Gastrointestinal bleeding Show more areas of focus for Nayantara Coelho-Prabhu, M.B.B.S. Research Mayo Clinic researchers are working on improved imaging technology to find the source of GI bleeding. Mayo radiologists were instrumental in developing novel imaging techniques for bowel disorders that can help pinpoint the location of GI bleeding. Mayo doctors also are researching new techniques for treating GI bleeding. Research profiles Jeffrey A. Alexander, M.D. David H. Bruining, M.D. Jonathan A. Leighton, M.D. Shabana F. Pasha, M.D. Elizabeth Rajan, M.D. Michael B. Wallace, M.D. Louis M. Wong Kee Song, M.D. Research Profiles Edit search filters close Narrow your search By location Arizona Florida Minnesota View all View all physicians • All Locations Alexander, Jeffrey A. M.D. Minnesota Bruining, David H. M.D. Minnesota Leighton, Jonathan A. M.D. Arizona Pasha, Shabana F. M.D. Arizona Rajan, Elizabeth M.D. Minnesota Wallace, Michael B. M.D. Florida Wong Kee Song, Louis M. M.D. Minnesota By Mayo Clinic Staff Gastrointestinal bleeding care at Mayo Clinic Request an appointment Diagnosis & treatmentCare at Mayo Clinic Oct. 13, 2023 Print Related Products & Services A Book: Mayo Clinic Family Health Book Newsletter: Mayo Clinic Health Letter — Digital Edition Show more products and services from Mayo Clinic Gastrointestinal bleedingSymptoms&causesDiagnosis&treatmentDoctors&departmentsCare atMayoClinic Research: It's all about patients Show transcript for video Research: It's all about patients [MUSIC PLAYING] Joseph Sirven, M.D., Professor of Neurology, Mayo Clinic: Mayo's mission is about the patient. The patient comes first. So the mission and research here is to advance how we can best help the patient, how to make sure the patient comes first in care. So in many ways, it's a cycle. It can start with as simple as an idea worked on in a laboratory, brought to the patient bedside, and if everything goes right — and let's say it's helpful or beneficial — then brought on as a standard approach. And I think that is one of the unique characteristics of Mayo's approach to research — that patient-centeredness — that really helps to put it in its own spotlight. CON-20372719 Patient Care & Health Information Diseases & Conditions Gastrointestinal bleeding