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 11-19 out of 19 doctors available

  1. Kellie L. Mathis, M.D.

    Kellie L. Mathis, M.D.

    1. General Surgeon
    2. Colon and Rectal Surgeon
    1. Rochester, MN
    Areas of focus:

    Anorectal surgery, Coloanal anastomosis, Low anterior resection, Colonoscopy, Laparoscopic surgery, Ileoanal anastomosi...s surgery, Flexible sigmoidoscopy, Colostomy, Ileostomy surgery, Colorectal surgery, Minimally invasive surgery, Robotic surgery, Anoscopy, Rectovaginal fistula repair, Rectal cancer surgery, Colon cancer surgery, Colectomy, Intraoperative radiation therapy, Rectal prolapse surgery, Proctectomy, Small bowel resection, Minimally invasive intestinal surgery, Bowel resection, Digital rectal exam, Pelvic floor dysfunction, Colon cancer, Inflammatory bowel disease, Rectal cancer, Anorectal abnormality, Familial adenomatous polyposis, Ulcerative colitis, Diverticulitis, Crohn's disease, Constipation, Pouchitis, Ileostomy, Colon polyps, Anal fissure, Lynch syndrome, Fistula, Anal fistula, Vaginal fistula, Pelvic floor defecatory dysfunction, Anal cancer, Carcinoid tumor, Polyp, Tubular colon adenoma, Polyposis syndromes, Recurrent cancer, Anorectal disease, Hemorrhoids, Abscess

  2. Nicholas P. McKenna, M.D., M.S.

    Nicholas P. McKenna, M.D., M.S.

    1. Colon and Rectal Surgeon
    1. Rochester, MN
    Areas of focus:

    Anorectal surgery, Low anterior resection, Colonoscopy, Laparoscopic surgery, Ileoanal anastomosis surgery, Hemorrhoide...ctomy, Hemorrhoidal banding, Colostomy, Ileostomy surgery, Colorectal surgery, Minimally invasive surgery, Robotic surgery, Rectal cancer surgery, Colon cancer surgery, Colectomy, Proctectomy, Small bowel resection, Sacral nerve stimulation for fecal incontinence, Bowel resection, Colon cancer, Inflammatory bowel disease, Rectal cancer, Familial adenomatous polyposis, Ulcerative colitis, Diverticulitis, Crohn's disease, Ileostomy, Perianal abscess, Colon polyps, Anal fissure, Anal fistula, Anal cancer, Polyposis syndromes, Anorectal disease, Hemorrhoids, Anal squamous cell carcinoma

  3. Amit Merchea, M.D.

    Amit Merchea, M.D.

    1. Surgical Oncologist
    2. Colon and Rectal Surgeon
    1. Jacksonville, FL
    Areas of focus:

    Colostomy, Rectal cancer surgery, Colon cancer surgery, Chemotherapy for colon cancer, PIPAC, Colon cancer, Rectal canc...er, Ulcerative colitis, Crohn's disease, Anal fistula

  4. Nitin Mishra, M.B.B.S., M.P.H.

    Nitin Mishra, M.B.B.S., M.P.H.

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

    Laparoscopic surgery, Colostomy, Colorectal surgery, Robotic surgery, Rectal cancer surgery, Colon cancer surgery, Intr...aoperative radiation therapy, Colon cancer, Inflammatory bowel disease, Rectal cancer, Rectal prolapse, Anal fistula

  5. William R. G. Perry, M.B., Ch.B., M.P.H.

    William R. G. Perry, M.B., Ch.B., M.P.H.

    1. Colon and Rectal Surgeon
    1. Rochester, MN
    Areas of focus:

    Anorectal surgery, Coloanal anastomosis, Low anterior resection, Laparoscopic surgery, Ileoanal anastomosis surgery, Fl...exible sigmoidoscopy, Colostomy, Ileostomy surgery, Colorectal surgery, Minimally invasive surgery, Complex oncologic multidisciplinary pelvic surgery, Robotic surgery, Anoscopy, Rectal biopsy, Rectovaginal fistula repair, Rectocele repair, Anal sphincter repair, Rectal cancer surgery, Colon cancer surgery, Colectomy, Rectal prolapse surgery, Proctectomy, Transanal endoscopic microsurgery, Small bowel resection, Minimally invasive intestinal surgery, Sacral nerve stimulation for fecal incontinence, Transanal total mesorectal excision, Bowel resection, Digital rectal exam, Anal sphincteroplasty, Fecal incontinence, Pelvic floor dysfunction, Colon cancer, Inflammatory bowel disease, Rectal cancer, Anorectal abnormality, Ulcerative colitis, Diverticulitis, Rectovaginal fistula, Crohn's disease, Ileostomy, Anal fissure, Rectal prolapse, Hirschsprung's disease, Anal fistula, Pelvic floor defecatory dysfunction, Anal cancer, Stage 4 colorectal cancer, Recurrent cancer, Anorectal disease, Colonic dysmotility, Hemorrhoids, Solitary rectal ulcer syndrome, Intussusception

  6. Kristy K. Rumer, M.D., Ph.D.

    Kristy K. Rumer, M.D., Ph.D.

    1. Colon and Rectal Surgeon
    1. Rochester, MN
    Areas of focus:

    Colorectal surgery, Rectal cancer surgery, Colon cancer surgery

  7. Luca Stocchi, M.D.

    Luca Stocchi, M.D.

    1. General Surgeon
    2. Colon and Rectal Surgeon
    1. Jacksonville, FL
    Areas of focus:

    Laparoscopic surgery, Colostomy, Colorectal surgery, Robotic surgery, Rectal cancer surgery, Colon cancer surgery, Colo...n cancer, Cancer, Inflammatory bowel disease, Rectal cancer, Ulcerative colitis, Crohn's disease, Anal fistula

  8. Tonia M. Young-Fadok, M.D.

    Tonia M. Young-Fadok, M.D.

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

    Active surveillance, Colostomy, Colorectal surgery, Rectal cancer surgery, Colon cancer surgery, Colon cancer, Rectal c...ancer, Ulcerative colitis, Diverticulitis, Crohn's disease, Colon polyps, Anal fistula, Tubular colon adenoma

  9. Lindsey M. Zhang, M.D.

    Lindsey M. Zhang, M.D.

    1. Colon and Rectal Surgeon
    1. Rochester, MN
    Areas of focus:

    Anorectal surgery, Colonoscopy, Laparoscopic surgery, Hemorrhoidectomy, Colostomy, Ileostomy surgery, Colorectal surger...y, Robotic surgery, Rectal cancer surgery, Colon cancer surgery, Colectomy, Rectal prolapse surgery, Proctectomy, Sacral nerve stimulation for fecal incontinence, Bowel resection, Fecal incontinence, Colon cancer, Rectal cancer, Ulcerative colitis, Diverticulitis, Crohn's disease, Perianal abscess, Anal fissure, Rectal prolapse, Anal fistula, Anal cancer, Hemorrhoids

Research

Designated as a comprehensive cancer center by the National Cancer Institute, Mayo Clinic Comprehensive Cancer Center is defining new boundaries in colon cancer research.

Areas of research include:

  • Chemotherapy options after surgery. This study is finding the best chemotherapy treatment for people after surgery by checking for any remaining cancer cells, called circulating tumor DNA, in the blood.
  • MUC1 vaccine. Researchers are testing a vaccine targeting the MUC1 protein in people with a history of precancerous polyps to see if it can prevent colon cancer.
  • Endoscopy with indigo carmine. Researchers are testing the use of a blue dye mixed with standard colonoscopy prep to see if it improves polyp detection in the right colon.

Publications

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

Research Profiles

July 08, 2025
  1. Colon cancer. National Comprehensive Cancer Network. https://www.nccn.org/guidelines/guidelines-detail?category=1&id=1428. Accessed Jan. 31, 2025.
  2. Vogel JD, et al. The American Society of Colon and Rectal Surgeons clinical practice guidelines for the management of colon cancer. Diseases of the Colon and Rectum. 2022; doi:10.1097/DCR.0000000000002323.
  3. Steele SR, et al., eds. Colon cancer surgical treatment. In: The ASCRS Textbook of Colon and Rectal Surgery. 4th ed. Springer; 2022. https://search.ebscohost.com. Accessed Jan. 31, 2025.
  4. Clark S, et al., eds. Surgery for colon cancer. In: Colorectal Surgery: A Companion to Specialist Surgical Practice. 7th ed. Elsevier; 2024. https://www.clinicalkey.com. Accessed Jan. 31, 2025.
  5. Cameron JL, et al., eds. Surgical management of colon cancer. In: Current Surgical Therapy. 14th ed. Elsevier; 2023. https://www.clinicalkey.com. Accessed Jan. 31, 2025.
  6. Hagberg C. Perioperative care of the colorectal cancer patient. In: Perioperative Care of the Cancer Patient. Elsevier; 2023. https://www.clinicalkey.com. Accessed Jan. 31, 2025.
  7. Colon cancer treatment (PDQ) — Health professional version. National Cancer Institute. https://www.cancer.gov/types/colorectal/hp/colon-treatment-pdq. Accessed Jan. 31, 2025.
  8. Treating colorectal cancer. American Cancer Society. https://www.cancer.org/cancer/types/colon-rectal-cancer/treating.html. Accessed Jan. 30, 2025.
  9. After surgery for colon cancer. Cancer Research UK. https://www.cancerresearchuk.org/about-cancer/bowel-cancer/treatment/treatment-colon/surgery-colon/after-surgery-bowel-cancer. Accessed Feb. 25, 2025.
  10. Nimmagadda R. AllScripts EPSi. Mayo Clinic. Feb. 26, 2025.
  11. Colostomy guide. American Cancer Society. https://www.cancer.org/cancer/managing-cancer/treatment-types/surgery/ostomies/colostomy.html. Accessed March 26, 2025.
  12. Enterprise colorectal and anal cancer surgical cases: 2022-2024. Mayo Clinic. March 5, 2025.
  13. Medical review (expert opinion). Mayo Clinic. March 26, 2025.