Colonoscopy

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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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Doctors who perform this procedure

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Displaying 61-70 out of 77 doctors available

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

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

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

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

  2. Shabana F. Pasha, M.D.

    Shabana F. Pasha, M.D.

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

    Colonoscopy, Upper endoscopy, Capsule endoscopy, Balloon-assisted enteroscopy, 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:

    Colonoscopy, Upper endoscopy, Endoscopic mucosal resection, Endoscopic dilation, Esophageal manometry, Esophageal reflu...x scan, Gastroesophageal reflux disease, Dysphagia, Esophageal cancer, Barrett's esophagus, Eosinophilic esophagitis, Colon polyps, Zenker's diverticulum, Lichen planus, Eosinophilic gastroenteritis, Achalasia, 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:

    Colonoscopy, Flexible sigmoidoscopy, Upper endoscopy, Crohn's disease, Ulcerative colitis, Microscopic colitis, 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:

    Colonoscopy, Upper endoscopy, Fecal transplant, Chromoendoscopy, Pancreatic cancer, Lynch syndrome, Familial adenomatou...s polyposis

  6. Jewel J. Samadder, M.D.

    Jewel J. Samadder, M.D.

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

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

  7. William Sanchez, M.D.

    William Sanchez, M.D.

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

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

  8. Dan A. Schupack, M.D.

    Dan A. Schupack, M.D.

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

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

  9. 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:

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

  10. Dennis L. Shung, M.D., Ph.D.

    Dennis L. Shung, M.D., Ph.D.

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

    Colonoscopy, Flexible sigmoidoscopy, Upper endoscopy, Gastrointestinal bleeding

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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By Mayo Clinic Staff

Colonoscopy care at Mayo Clinic

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AboutCare at Mayo Clinic
Feb. 06, 2026
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  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.

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Colonoscopy