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 1-10 out of 24 doctors available

  1. Kevin T. Behm, M.D.

    Kevin T. Behm, M.D.

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

    Robotic surgery, Colorectal surgery, Rectal cancer surgery, Flexible sigmoidoscopy, Colectomy, Rectal prolapse surgery,... Proctectomy, Intraoperative radiation therapy, Colostomy, Ileoanal anastomosis surgery, Colon cancer surgery, Coloanal anastomosis, Anorectal surgery, Laparoscopic surgery, Ileostomy surgery, Transanal endoscopic microsurgery, Minimally invasive abdominal surgery, Complex oncologic multidisciplinary pelvic surgery, Colon cancer, Polyp, Crohn's disease, Inflammatory bowel disease, Ulcerative colitis, Lynch syndrome, Anal cancer, Colon polyps, Rectal cancer, Carcinoid tumor, Diverticulitis, Abscess, Rectal prolapse, Familial adenomatous polyposis, Vaginal fistula, Recurrent cancer, Polyposis syndromes

  2. Justin T. Brady, M.D.

    Justin T. Brady, M.D.

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

    Robotic surgery, Colorectal surgery, Rectal cancer surgery, Colon cancer surgery, Laparoscopic surgery, Transanal endos...copic microsurgery, Colon cancer, Crohn's disease, Ulcerative colitis, Anal cancer, Colon polyps, Rectal cancer, Diverticulitis, Anal fissure, Anal fistula

  3. Robert R. Cima, M.D.

    Robert R. Cima, M.D.

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

    Colonoscopy, Colorectal surgery, Rectal cancer surgery, Flexible sigmoidoscopy, Colectomy, Colostomy, Ileoanal anastomo...sis surgery, Colon cancer surgery, Coloanal anastomosis, Anorectal surgery, Laparoscopic surgery, Robotic ventral hernia repair, Ileostomy surgery, Transanal endoscopic microsurgery, Minimally invasive abdominal surgery, Colon cancer, Colonic dysmotility, Crohn's disease, Inflammatory bowel disease, Ulcerative colitis, Lynch syndrome, Hemorrhoids, Fistula, Colon polyps, Carcinoid tumor, Diverticulitis, Abscess, Anal fissure, Anal fistula, Familial adenomatous polyposis, Recurrent cancer, Polyposis syndromes, Anorectal disease

  4. Dorin T. Colibaseanu, M.D.

    Dorin T. Colibaseanu, M.D.

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

    Colorectal surgery, Rectal cancer surgery, Colostomy, Colon cancer surgery, Colon cancer, Crohn's disease, Inflammatory... bowel disease, Ulcerative colitis, Rectal cancer, Diverticulitis, Neuroendocrine tumor, Small bowel cancer, Tubular colon adenoma

  5. Anne-Lise D. D'Angelo, M.D., M.S.

    Anne-Lise D. D'Angelo, M.D., M.S.

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

    Minimally invasive surgery, Robotic surgery, Colorectal surgery, Rectal cancer surgery, Colectomy, Proctectomy, Colosto...my, Colon cancer surgery, Coloanal anastomosis, Laparoscopic surgery, Ileostomy surgery, Colon cancer, Polyp, Crohn's disease, Inflammatory bowel disease, Ulcerative colitis, Lynch syndrome, Fistula, Anal cancer, Rectal cancer, Carcinoid tumor, Diverticulitis, Rectal prolapse, Polyposis syndromes

  6. Michelle F. DeLeon, M.D.

    Michelle F. DeLeon, M.D.

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

    Robotic surgery, Colorectal surgery, Rectal cancer surgery, Colostomy, Colon cancer surgery, Laparoscopic surgery, Tran...sanal endoscopic microsurgery, Colon cancer, Crohn's disease, Inflammatory bowel disease, Ulcerative colitis, Rectal cancer, Diverticulitis, Anorectal disease

  7. Eric J. Dozois, M.D.

    Eric J. Dozois, M.D.

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

    Colonoscopy, Robotic surgery, Colorectal surgery, Rectal cancer surgery, Flexible sigmoidoscopy, Colectomy, Rectal prol...apse surgery, Proctectomy, Intraoperative radiation therapy, Colostomy, Ileoanal anastomosis surgery, Colon cancer surgery, Coloanal anastomosis, Anorectal surgery, Ileal conduit management, Laparoscopic surgery, Ileostomy surgery, Minimally invasive abdominal surgery, Complex oncologic multidisciplinary pelvic surgery, Colon cancer, Crohn's disease, Inflammatory bowel disease, Ulcerative colitis, Lynch syndrome, Colon polyps, Rectal cancer, Diverticulitis, Anal fistula, Familial adenomatous polyposis, Recurrent cancer, Polyposis syndromes, Anorectal disease

  8. David A. Etzioni, M.D.

    David A. Etzioni, M.D.

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

    Minimally invasive surgery, Robotic surgery, Colorectal surgery, Rectal cancer surgery, Colon cancer surgery, Laparosco...pic surgery, Colon cancer, Rectal cancer, Diverticulitis, Anal fistula

  9. David W. Larson, M.D., M.B.A.

    David W. Larson, M.D., M.B.A.

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

    Robotic surgery, Colorectal surgery, Rectal cancer surgery, Colectomy, Proctectomy, Intraoperative radiation therapy, C...olostomy, Ileoanal anastomosis surgery, Colon cancer surgery, Coloanal anastomosis, Laparoscopic surgery, Single-incision laparoscopic surgery, Transanal endoscopic microsurgery, Minimally invasive abdominal surgery, Complex oncologic multidisciplinary pelvic surgery, Colon cancer, Crohn's disease, Inflammatory bowel disease, Ulcerative colitis, Lynch syndrome, Colon polyps, Rectal cancer, Diverticulitis, Familial adenomatous polyposis, Recurrent cancer, Polyposis syndromes

  10. Kellie L. Mathis, M.D.

    Kellie L. Mathis, M.D.

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

    Colonoscopy, Robotic surgery, Colorectal surgery, Rectal cancer surgery, Flexible sigmoidoscopy, Colectomy, Rectal prol...apse surgery, Proctectomy, Intraoperative radiation therapy, Colostomy, Ileoanal anastomosis surgery, Colon cancer surgery, Coloanal anastomosis, Anorectal surgery, Laparoscopic surgery, Ileostomy surgery, Colon cancer, Polyp, Inflammatory bowel disease, Ulcerative colitis, Lynch syndrome, Hemorrhoids, Fistula, Pelvic floor defecatory dysfunction, Anal cancer, Colon polyps, Anorectal abnormality, Rectal cancer, Carcinoid tumor, Diverticulitis, Pouchitis, Abscess, Rectal prolapse, Anal fissure, Anal fistula, Constipation, Familial adenomatous polyposis, Vaginal fistula, Recurrent cancer, Pelvic floor dysfunction, Polyposis syndromes, Tubular colon adenoma

Research

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

Areas of research include:

  • Personalized cell therapy. The goal of this study is to build a library of rectal cancer cells taken from patients, which can be used to develop more-personalized treatment strategies.
  • Robotic versus laparoscopic surgery. This study compares robotic and conventional laparoscopic surgery for rectal cancer by assessing how each approach affects bowel, urinary and sexual function after surgery.
  • Presurgery treatment. This study compares two treatments for rectal cancer before surgery — standard chemotherapy with radiation versus chemotherapy alone — to see which works better and causes fewer side effects.

Publications

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

Research Profiles

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View all physicians • Florida

Oct. 07, 2025
  1. Clark S, et al., eds. Surgery for rectal cancer. In: Colorectal Surgery: A Companion to Specialist Surgical Practice. 7th ed. Elsevier; 2024. https://www.clinicalkey.com. Accessed July 23, 2025.
  2. Cameron JL, et al., eds. Management of rectal cancer. In: Current Surgical Therapy. 14th ed. Elsevier; 2023. https://www.clinicalkey.com. Accessed July 23, 2025.
  3. Rectal cancer treatment (PDQ) — Health professional version. National Cancer Institute. https://www.cancer.gov/types/colorectal/hp/rectal-treatment-pdq. Accessed July 23, 2025.
  4. Irani JL, et al. Clinical practice guidelines for enhanced recovery after colon and rectal surgery from the American Society of Colon and Rectal Surgeons and the Society of American Gastrointestinal and Endoscopic Surgeons. Surgical Endoscopy. 2023; doi:10.1007/s00464-022-09758-x.
  5. Langenfeld SJ, et al. The American Society of Colon and Rectal Surgeons clinical practice guidelines for the management of rectal cancer 2023 supplement. Diseases of the Colon and Rectum. 2024; doi:10.1097/DCR.0000000000003057.
  6. Rectal cancer. National Comprehensive Cancer Network. https://www.nccn.org/guidelines/guidelines-detail?category=1&id=1461. Accessed June 30, 2025.
  7. ACR appropriateness criteria: Staging and disease monitoring of rectal cancer. American College of Radiology. https://acsearch.acr.org/docs/3195870/Narrative. Accessed June 30, 2025.
  8. Donovan KF, et al. Transanal total mesorectal excision for rectal cancer. Advances in Surgery. 2025; doi:10.1016/j.yasu.2025.04.004.0065-3411/25.
  9. Dowli A, et al. Primary colorectal cancer. Surgery Oncology Clinics of North America. 2023; doi:10.1016/j.soc.2022.08.002.
  10. Donohue K, et al. Local excision for early-stage rectal adenocarcinomas. Cancer Journal. 2024; doi:10.1097/PPO.0000000000000734.
  11. Bleday R, et al. Surgical treatment of rectal cancer. https://www.uptodate.com/contents/search. Accessed June 30, 2025.
  12. Surgery for rectal cancer. American Cancer Society. https://www.cancer.org/cancer/types/colon-rectal-cancer/treating/rectal-surgery.html. Accessed July 23, 2025.
  13. Semanjski K, et al. Current surgical methods in local rectal excision. Gastrointestinal Tumors. 2024; doi:10.1159/000538958.
  14. Types of surgery for rectal cancer. Cancer Research UK. https://www.cancerresearchuk.org/about-cancer/bowel-cancer/treatment/treatment-rectal/surgery-rectal/types-surgery-rectal. Accessed July 23, 2025.
  15. Health Education & Content Services. Colon and rectal cancer. Mayo Clinic; 2023.
  16. Health Education & Content Services. Combination treatment for advanced rectal cancer. Mayo Clinic; 2023.
  17. Cameron JL, et al., eds. Surgical management of the polyposis syndromes. In: Current Surgical Therapy. 14th ed. Elsevier; 2023. https://www.clinicalkey.com. Accessed July 23, 2025.
  18. Ahmad SA, et al., eds. Inherited colorectal cancer and the genetics of colorectal cancer. In: Shackelford's Surgery of the Alimentary Tract. 9th ed. Elsevier; 2026. https://www.clinicalkey.com. Accessed July 23, 2025.
  19. You NY, et al. The American Society of Colon and Rectal Surgeons clinical practice guidelines for the management of rectal cancer. Diseases of the Colon and Rectum. 2020; doi:10.1097/DCR.0000000000001762.
  20. Harris KM. Allscripts EPSi. Mayo Clinic. July 29, 2025.
  21. Medical review (expert opinion). Mayo Clinic. July 30, 2025.