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Even if there are no auto-suggestions within the search field, hit "Search" anyway, as you may still get results. Displaying 1-1 out of 1 doctors available Location: Phoenix, AZ Last Name Initial: B Michele Barnhill, M.D. Gastroenterologist Transplant Hepatologist Phoenix, AZ Areas of focus: Colonoscopy, Esophagoscopy, Variceal band ligation, Nonalcoholic fatty liver disease, Cirrhosis, Primary sclerosing cho...langitis, Portal hypertension, Hemochromatosis, Autoimmune hepatitis, Primary biliary cholangitis Show more areas of focus for Michele Barnhill, M.D. 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. Khanna S (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? 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Dec. 07, 2022, 07:47 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. Learn more about this top honor ColonoscopyAboutDoctors&Departments PRC-20393555 Patient Care & Health Information Tests & Procedures Colonoscopy