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Departments with related expertise Cancer Care at Mayo Clinic Colon and Rectal Surgery Critical Care Early Onset and Hereditary GI Cancers Program Early-Onset Colorectal Cancer Group Gastroenterology and Hepatology Pediatric Hematology/Oncology Doctors who perform this procedure Edit search filters close Narrow your search By location Rochester, MN Jacksonville, FL Phoenix/Scottsdale, AZ 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 Find a doctor whose last name begins with the letter C C Find a doctor whose last name begins with the letter D D Find a doctor whose last name begins with the letter E E Find a doctor whose last name begins with the letter F F There are no doctors whose last name begins with the letter G G Find a doctor whose last name begins with the letter H H There are no doctors whose last name begins with the letter I I Find a doctor 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 Find a doctor whose last name begins with the letter M M There are no doctors whose last name begins with the letter N N Find a doctor 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 Find a doctor whose last name begins with the letter R R Find a doctor whose last name begins with the letter S S There are no doctors whose last name begins with the letter T T There are no doctors whose last name begins with the letter U U Find a doctor 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 Find a doctor 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 51-60 out of 68 doctors available Nicholas R. Oblizajek, M.D. Gastroenterologist Rochester, MN Areas of focus: Endoscopic procedure, Colonoscopy, Anorectal function testing, Breath testing, Anorectal manometry, Esophagoscopy, Pelv...ic floor dysfunction, Gastroparesis, Constipation, Gastroesophageal reflux disease, Functional dyspepsia, Diarrhea, Functional bowel disorder 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, Fecal transplant, Upper endoscopy, Capsule endoscopy, Fecal incontinence, Polyp, I...rritable bowel syndrome, Gastroesophageal reflux disease, Helicobacter pylori infection, Anemia, Chronic constipation, Chronic diarrhea Show more areas of focus for Philip N. Okafor, M.B.B.S. William C. Palmer, M.D. Gastroenterologist Jacksonville, FL Areas of focus: Colonoscopy, Flexible sigmoidoscopy, Upper endoscopy, Liver problems, Hemochromatosis, Gastrointestinal disorder, Iron ...overload Show more areas of focus for William C. Palmer, M.D. Maoyin Pang, M.D., Ph.D. Gastroenterologist Jacksonville, FL Areas of focus: Colonoscopy, Upper endoscopy, Flexible bronchoscopy, Bravo capsule pH test, Dysphagia, Achalasia, Gastroesophageal refl...ux disease, Eosinophilic esophagitis, Esophagitis, Esophageal spasms, Heartburn, Esophageal stricture Show more areas of focus for Maoyin Pang, M.D., Ph.D. Shabana F. Pasha, M.D. Gastroenterologist Phoenix, AZ Areas of focus: Colonoscopy, Upper endoscopy, Capsule endoscopy, Balloon-assisted enteroscopy, Inflammatory bowel disease, Colon cancer..., Gastrointestinal bleeding Show more areas of focus for Shabana F. Pasha, M.D. Gui Piovezani Ramos, M.D. Gastroenterologist Phoenix, AZ Areas of focus: Colonoscopy, Flexible sigmoidoscopy, Upper endoscopy, Ulcerative colitis, Crohn's disease, Microscopic colitis, Immune-...related adverse event Show more areas of focus for Gui Piovezani Ramos, M.D. Massimo Raimondo, M.D. Gastroenterologist Jacksonville, FL Areas of focus: Colonoscopy, Endoscopic ultrasound, Upper endoscopy, Endoscopic mucosal resection, Endoscopic full-thickness biopsy, Fi...ne needle aspiration, Endoscopic biopsy, Colon polyps, Pancreatic cancer, Pancreatic neuroendocrine tumor, Pancreatitis, Pancreatic cyst, Pancreatic insufficiency Show more areas of focus for Massimo Raimondo, M.D. Douglas L. Riegert-Johnson, M.D. Internist Gastroenterologist Medical Geneticist Jacksonville, FL Areas of focus: Colonoscopy, Fecal transplant, Upper endoscopy, Chromoendoscopy, Lynch syndrome, Familial adenomatous polyposis, Pancre...atic cancer Show more areas of focus for Douglas L. Riegert-Johnson, M.D. Jewel J. Samadder, M.D. Gastroenterologist Phoenix, AZ Areas of focus: Endoscopic procedure, Colonoscopy, Endoscopic mucosal resection, Lynch syndrome, Familial adenomatous polyposis, Barret...t's esophagus, Peutz-Jeghers syndrome, Juvenile polyposis syndrome, Cowden syndrome, MUTYH-associated polyposis, BRCA gene mutation Show more areas of focus for Jewel J. Samadder, M.D. William Sanchez, M.D. Internist Gastroenterologist Transplant Hepatologist Rochester, MN Areas of focus: Colonoscopy, Upper endoscopy, Liver biopsy, Pre-liver transplant evaluation, Post-liver transplant care, Cirrhosis, Hep...atitis C, Cholangiocarcinoma, Liver cancer, Hepatocellular carcinoma, Gallbladder cancer, Chronic liver disease, Hepatic encephalopathy Show more areas of focus for William Sanchez, M.D. Pagination Doctor search PrevPrevious Page Go to page 44 Go to page 55 Go to page 66 Go to page 77 NextNext Page By Mayo Clinic Staff Request an appointment About Feb. 28, 2024 Print Show references Colonoscopy. National Institute of Diabetes and Digestive and Kidney Diseases. https://www.niddk.nih.gov/health-information/diagnostic-tests/colonoscopy. Accessed April 1, 2022. Lee L, et al. Overview of colonoscopy in adults. https://www.uptodate.com/contents/search. Accessed April 1, 2022. AskMayoExpert. Colorectal cancer: Screening and management (adult). Mayo Clinic; 2021. Screening for colorectal cancer: U.S. Preventive Services Task Force Recommendation Statement. Journal of the American Medical Association. 2021; doi:10.1001/jama.2021.6238. A-Rahim YI. Bowel preparation before colonoscopy in adults. https://www.uptodate.com/contents/search. Accessed April 1, 2022. Gupta S, et al. Recommendations for follow-up after colonoscopy and polypectomy: A consensus update by the U.S. Multi-Society Task Force on Colorectal Cancer. Gastroenterology. 2020; doi:10.1053/j.gastro.2019.10.026. Medical review (expert opinion). Mayo Clinic. April 4, 2022. Related Anal fissure Anal itching Anemia Carcinoid tumors Clear liquid diet Colon cancer Colon cancer screening: At what age can you stop? Colon polyps Colonoscopy Colonoscopy exam Color Blue Detects Colon Cancer Constipation Constipation in children Crohn's disease Hemorrhoids Inflammatory bowel disease (IBD) Intestinal ischemia Iron deficiency anemia Irritable bowel syndrome Ischemic colitis Mayo Clinic Minute: What you need to know about polyps in your colon Proctitis Pseudomembranous colitis Rectal cancer Rectovaginal fistula Ulcerative colitis Show more related content News from Mayo Clinic Mayo Clinic Q and A: Colorectal cancer in young adults March 31, 2025, 02:30 p.m. CDT You're at risk of colorectal cancer. Know the symptoms. Get screened. March 25, 2025, 01:30 p.m. CDT Mayo Clinic Q and A: So you're having a colonoscopy: What to expect March 17, 2025, 02:01 p.m. CDT Mayo Clinic Minute: Are colon and rectal cancers treated differently? March 13, 2025, 01:09 p.m. CDT Mayo Clinic Q and A: Understanding colorectal cancer March 04, 2025, 03:16 p.m. CDT Mayo Clinic Minute: Health screenings in underserved populations Oct. 14, 2024, 03:23 p.m. CDT Mayo Clinic Minute: Why more preventive screenings are needed in the Hispanic community Sept. 20, 2024, 04:00 p.m. CDT In case you missed it: This week's Top 5 stories on social media March 29, 2024, 04:01 p.m. CDT Mayo Clinic Minute: Tips to make colonoscopy bowel prep easier March 28, 2024, 03:15 p.m. CDT Mayo Clinic Minute: Closing the gaps in cancer care Feb. 02, 2024, 05:30 p.m. CDT Highlights of Mayo Clinic research advancements in 2023 Jan. 01, 2024, 03:00 p.m. CDT Mayo Clinic Comprehensive Cancer Center highlights research advances in 2023 Dec. 21, 2023, 10:19 p.m. CDT Show more news from Mayo Clinic Products & Services A Book: Future Care A Book: Mayo Clinic on Digestive Health Show more products and services from Mayo Clinic Mayo Clinic in Rochester, Minnesota, has been recognized as the best Gastroenterology & GI Surgery hospital in the nation for 2024-2025 by U.S. News & World Report. 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