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.

Doctors who perform this procedure

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Displaying 61-70 out of 78 doctors available

  1. Maoyin Pang, M.D., Ph.D.

    Maoyin Pang, M.D., Ph.D.

    1. Gastroenterologist
    1. Jacksonville, FL
    Areas of focus:

    Bravo capsule pH test, Upper endoscopy, Colonoscopy, Flexible bronchoscopy, Dysphagia, Gastroesophageal reflux disease,... Achalasia, Eosinophilic esophagitis, Esophagitis, Heartburn, Esophageal stricture, Esophageal spasms

  2. Shabana F. Pasha, M.D.

    Shabana F. Pasha, M.D.

    1. Gastroenterologist
    1. Phoenix, AZ
    Areas of focus:

    Upper endoscopy, Colonoscopy, Balloon-assisted enteroscopy, Capsule endoscopy, Colon cancer, Inflammatory bowel disease..., Gastrointestinal bleeding

  3. Varan Perananthan, M.D., Ph.D.

    Varan Perananthan, M.D., Ph.D.

    1. Gastroenterologist
    1. Rochester, MN
    Areas of focus:

    Upper endoscopy, Esophageal reflux scan, Colonoscopy, Esophageal manometry, Endoscopic mucosal resection, Endoscopic di...lation, Dysphagia, Lichen planus, Gastroesophageal reflux disease, Achalasia, Eosinophilic esophagitis, Barrett's esophagus, Esophageal cancer, Colon polyps, Zenker's diverticulum, Eosinophilic gastroenteritis, Esophageal cyst, Barrett's esophagus with dysplasia

  4. Gui Piovezani Ramos, M.D.

    Gui Piovezani Ramos, M.D.

    1. Gastroenterologist
    1. Phoenix, AZ
    Areas of focus:

    Upper endoscopy, Colonoscopy, Flexible sigmoidoscopy, Microscopic colitis, Ulcerative colitis, Crohn's disease, Immune-...related adverse event

  5. Douglas L. Riegert-Johnson, M.D.

    Douglas L. Riegert-Johnson, M.D.

    1. Internist
    2. Gastroenterologist
    3. Medical Geneticist
    1. Jacksonville, FL
    Areas of focus:

    Upper endoscopy, Colonoscopy, Fecal transplant, Chromoendoscopy, Pancreatic cancer, Familial adenomatous polyposis, Lyn...ch syndrome

  6. Lindsey A. Russell, M.D.

    Lindsey A. Russell, M.D.

    1. Gastroenterologist
    2. Nutrition Specialist
    Areas of focus:

    Upper endoscopy, Colonoscopy, Flexible sigmoidoscopy, PEG-J tube placement, Capsule endoscopy, Nasogastric tube inserti...on, PEG tube placement, Double balloon enteroscopy, Small bowel stricture dilation, Celiac disease, Microscopic colitis, Short bowel syndrome, High output ileostomy, Malnutrition, Malabsorption, Pancreatic insufficiency

  7. Jewel J. Samadder, M.D.

    Jewel J. Samadder, M.D.

    1. Gastroenterologist
    1. Phoenix, AZ
    Areas of focus:

    Colonoscopy, Endoscopic procedure, Endoscopic mucosal resection, Familial adenomatous polyposis, Barrett's esophagus, B...RCA gene mutation, MUTYH-associated polyposis, Lynch syndrome, Juvenile polyposis syndrome, Peutz-Jeghers syndrome, Cowden syndrome

  8. William Sanchez, M.D.

    William Sanchez, M.D.

    1. Internist
    2. Gastroenterologist
    3. Transplant Hepatologist
    1. Rochester, MN
    Areas of focus:

    Upper endoscopy, Colonoscopy, Liver biopsy, Post-liver transplant care, Pre-liver transplant evaluation, Hepatic enceph...alopathy, Liver cancer, Hepatocellular carcinoma, Cirrhosis, Hepatitis C, Nonalcoholic fatty liver disease, Chronic liver disease, Cholangiocarcinoma, Gallbladder cancer

  9. Dan A. Schupack, M.D.

    Dan A. Schupack, M.D.

    1. Gastroenterologist
    1. Rochester, MN
    Areas of focus:

    Upper endoscopy, Colonoscopy, Colon cancer, Familial adenomatous polyposis, Lynch syndrome, Polyposis syndromes

  10. Robert E. Sedlack, M.D., M.H.P.E.

    Robert E. Sedlack, M.D., M.H.P.E.

    1. Gastroenterologist
    1. Rochester, MN
    Areas of focus:

    Upper endoscopy, Colonoscopy, Endoscopic procedure, Esophageal dilation, Therapeutic endoscopy, Esophageal stenting, En...doscopic mucosal resection, Gastrostomy tube placement, Endoscopic biopsy, Polypectomy, Colon polyps, Esophageal stricture, Esophageal foreign body , Esophageal varices

Research

Mayo Clinic researchers are advancing the science and practice of colonoscopy to improve detection, preparation, comfort and outcomes for people undergoing colorectal cancer screening or evaluation of colonic conditions.

Mayo Clinic Comprehensive Cancer Center meets the strict standards for a U.S. National Cancer Institute comprehensive cancer center. These standards recognize scientific excellence and a multispecialty approach focused on cancer prevention, diagnosis and treatment.

Mayo Clinic is conducting numerous clinical trials that explore new tools, technologies and approaches in colonoscopy and related areas.

Publications

See a list of publications about colonoscopy by Mayo Clinic doctors on PubMed, a service of the National Library of Medicine.

Research Profiles

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Feb. 06, 2026
  1. U.S. Preventive Services Task Force. Screening for colorectal cancer: U.S. Preventive Services Task Force Recommendation Statement. JAMA. 2021; doi:10.1001/jama.2021.6238.
  2. 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.
  3. Colorectal cancer early detection, diagnosis, and staging. https://www.cancer.org/cancer/types/colon-rectal-cancer/detection-diagnosis-staging.html. American Cancer Society. Accessed Jan. 16, 2026.
  4. A-Rahim YI, et al. Bowel preparation before colonoscopy in adults. https://www.uptodate.com/contents/search. Accessed Jan. 16, 2026.
  5. Colonoscopy. National Institute of Diabetes and Digestive and Kidney Diseases. https://www.niddk.nih.gov/health-information/diagnostic-tests/colonoscopy. Accessed Jan. 16, 2026.
  6. Lee L, et al. Overview of colonoscopy in adults. https://www.uptodate.com/contents/search. Accessed Jan. 16, 2026.
  7. Knudsen AB, et al. Colorectal cancer screening: An updated modeling study for the U.S. Preventive Services Task Force. JAMA. 2021; doi:10.1001/jama.2021.5746.
  8. Colonoscopy. American College of Gastroenterology. https://gi.org/topics/colonoscopy/. Accessed Jan. 16, 2026.
  9. American Society for Gastrointestinal Endoscopy. Guidelines for endoscopy in pregnant and lactating women. Gastrointestinal Endoscopy. 2012; doi:10.1016/j.gie.2012.02.029.
  10. Can you have a colonoscopy when you're menstruating? International Center for Global Health Information. https://www.icgi.org/can-you-have-a-colonoscopy-if-youre-menstruating/. Accessed Jan. 16, 2026.
  11. Health Education & Content Services. About your colonoscopy. Mayo Clinic; 2018.