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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Displaying 11-20 out of 22 doctors available

Location: Phoenix, AZ

  1. Christina Y. Ha, M.D.

    Christina Y. Ha, M.D.

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

    Upper endoscopy, Colonoscopy, Chromoendoscopy, Ulcerative colitis, Crohn's disease

  2. Jennifer L. Horsley-Silva, M.D.
    Areas of focus:

    Upper endoscopy, Colonoscopy, Endoscopic procedure, Endoscopic biopsy, Gastroesophageal reflux disease, Achalasia, Eosi...nophilic esophagitis, Esophagitis, Barrett's esophagus

  3. Channa R. Jayasekera, M.D.

    Channa R. Jayasekera, M.D.

    1. Gastroenterologist
    2. Transplant Hepatologist
    1. Phoenix, AZ
    Areas of focus:

    Upper endoscopy, Colonoscopy, Hepatic encephalopathy, Liver cancer, Hepatocellular carcinoma, Cirrhosis, Alcoholic live...r disease, Hepatitis C, Hepatitis B, Nonalcoholic fatty liver disease, Primary biliary cholangitis, Liver tumor, Cholangiocarcinoma, Primary sclerosing cholangitis, Liver injury, Liver mass, Portal hypertension, Jaundice, Liver disease, Hemochromatosis, Alcoholic hepatitis, Metabolic liver disease

  4. Allon Kahn, M.D.

    Allon Kahn, M.D.

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

    Radiofrequency ablation, Upper endoscopy, Colonoscopy, Esophageal dilation, Endoscopic mucosal resection, Cryotherapy, ...Dysphagia, Gastroesophageal reflux disease, Achalasia, Eosinophilic esophagitis, Esophagitis, Barrett's esophagus, Esophageal cancer, Esophageal stricture

  5. Blanca C. Lizaola-Mayo, M.D.

    Blanca C. Lizaola-Mayo, M.D.

    1. Gastroenterologist
    2. Transplant Hepatologist
    1. Phoenix, AZ
    Areas of focus:

    Upper endoscopy, Colonoscopy, Balloon-assisted enteroscopy, Variceal band ligation, Hepatic encephalopathy, Hepatocellu...lar carcinoma, Cirrhosis, Hepatitis C, Hepatitis B, Nonalcoholic fatty liver disease, Autoimmune hepatitis, Alcoholic hepatitis, Fatty liver disease

  6. Talha A. Malik, M.D.

    Talha A. Malik, M.D.

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

    Upper endoscopy, Colonoscopy, Inflammatory bowel disease, Ulcerative colitis, Crohn's disease

  7. Nimesh D. Naik, M.D.

    Nimesh D. Naik, M.D.

    1. Colon and Rectal Surgeon
    1. Phoenix, AZ
    Areas of focus:

    Anorectal surgery, Coloanal anastomosis, Colonoscopy, Ileal conduit surgery, Laparoscopic surgery, Ileoanal anastomosis... surgery, Flexible sigmoidoscopy, Colostomy, Ileostomy surgery, Colorectal surgery, Minimally invasive surgery, Complex oncologic multidisciplinary pelvic surgery, Robotic surgery, Rectal cancer surgery, Ileal conduit management, Colectomy, Intraoperative radiation therapy, Colostomy reversal, Rectal prolapse surgery, Proctectomy, Transanal minimally invasive surgery, Colon cancer, Inflammatory bowel disease, Rectal cancer, Familial adenomatous polyposis, Pelvic organ prolapse, Ulcerative colitis, Diverticulitis, Rectovaginal fistula, Crohn's disease, Perianal abscess, Colon polyps, Anal fissure, Lynch syndrome, Diverticular disease, Anal fistula, Anal cancer, Polyposis syndromes, Hemorrhoids, Anal squamous cell carcinoma, Colovesical fistula, Recurrent rectal cancer

  8. 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

  9. 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

  10. 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

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