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.

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Displaying 1-2 out of 2 doctors available

Last Name Initial: R

  1. Massimo Raimondo, M.D.

    Massimo Raimondo, M.D.

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

    Colonoscopy, Endoscopic ultrasound, Upper endoscopy, Endoscopic mucosal resection, Fine needle aspiration, Endoscopic b...iopsy, Endoscopic full-thickness biopsy, Pancreatic cancer, Pancreatic neuroendocrine tumor, Colon polyps, Pancreatitis, Pancreatic cyst, Pancreatic insufficiency

  2. 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, Lynch syndrome, Pancreatic cancer, Familial adenomatou...s polyposis

Feb. 28, 2024
  1. Colonoscopy. National Institute of Diabetes and Digestive and Kidney Diseases. https://www.niddk.nih.gov/health-information/diagnostic-tests/colonoscopy. Accessed April 1, 2022.
  2. Lee L, et al. Overview of colonoscopy in adults. https://www.uptodate.com/contents/search. Accessed April 1, 2022.
  3. AskMayoExpert. Colorectal cancer: Screening and management (adult). Mayo Clinic; 2021.
  4. 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.
  5. A-Rahim YI. Bowel preparation before colonoscopy in adults. https://www.uptodate.com/contents/search. Accessed April 1, 2022.
  6. 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.
  7. Khanna S (expert opinion). Mayo Clinic. April 4, 2022.

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