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 11-20 out of 42 doctors available

  1. David A. Etzioni, M.D.

    David A. Etzioni, M.D.

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

    Laparoscopic surgery, Colorectal surgery, Minimally invasive surgery, Robotic surgery, Rectal cancer surgery, Colon can...cer surgery, Colon cancer, Rectal cancer, Diverticulitis, Anal fistula

  2. Douglas O. Faigel, M.D.

    Douglas O. Faigel, M.D.

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

    Upper endoscopy, Colonoscopy, ERCP, Endoscopic ultrasound, Double balloon enteroscopy, Gastroesophageal reflux disease,... Pancreatic cancer, Pancreatitis, Rectal cancer, Gastrointestinal bleeding, Stomach cancer, Esophageal cancer, Colon polyps, Esophageal stricture, Pancreatic cyst, Pancreatic neuroendocrine tumor, Bile duct stone, Bile duct injury, Bile duct cyst, Stomach polyps, Bile duct stricture, Rectal neuroendocrine tumor, Mediastinal lymph node enlargement, Mediastinal tumor, Gastric outlet obstruction

  3. Ben George, M.B.B.S., M.D.

    Ben George, M.B.B.S., M.D.

    1. Oncologist
    1. Rochester, MN
    Areas of focus:

    Chemotherapy for colon cancer, Colon cancer, Pancreatic cancer, Rectal cancer, Stomach cancer, Cholangiocarcinoma, Esop...hageal cancer

  4. Michael G. Haddock, M.D.

    Michael G. Haddock, M.D.

    1. Radiation Oncologist
    1. Rochester, MN
    Areas of focus:

    Brachytherapy, Proton therapy, External beam radiation therapy, Intraoperative radiation therapy, Intensity-modulated r...adiation therapy, Colon cancer, Liver cancer, Cervical cancer, Pancreatic cancer, Rectal cancer, Ovarian cancer, Endometrial cancer, Soft tissue sarcoma, Stomach cancer, Cholangiocarcinoma, Esophageal cancer, Vulvar cancer, Vaginal cancer, Rhabdomyosarcoma, Bone cancer, Ampullary cancer, Hilar cholangiocarcinoma, Anal cancer, Stage 4 colorectal cancer, Sarcoma, Chondrosarcoma, Ewing sarcoma, Leiomyosarcoma, Small bowel cancer, Rectal melanoma, Duodenal cancer

  5. Chris L. Hallemeier, M.D.

    Chris L. Hallemeier, M.D.

    1. Radiation Oncologist
    1. Rochester, MN
    Areas of focus:

    Proton therapy, Stereotactic body radiotherapy, Intensity-modulated radiation therapy, 3D conformal radiotherapy, Colon... cancer, Liver cancer, Pancreatic cancer, Rectal cancer, Stomach cancer, Esophageal cancer, Anal cancer

  6. Zhaohui Jin, M.D.

    Zhaohui Jin, M.D.

    1. Oncologist
    1. Rochester, MN
    Areas of focus:

    Hepatic artery infusion pump chemotherapy, CAR-T cell therapy, Chemotherapy for colon cancer, Colon cancer, Hepatocellu...lar carcinoma, Pancreatic cancer, Neuroendocrine tumor, Rectal cancer, Stomach cancer, Cholangiocarcinoma, Esophageal cancer, Anal cancer, Small bowel cancer

  7. Lionel Kankeu Fonkoua, M.D.

    Lionel Kankeu Fonkoua, M.D.

    1. Oncologist
    1. Rochester, MN
    Areas of focus:

    Chemotherapy for colon cancer, Colon cancer, Hepatocellular carcinoma, Pancreatic cancer, Neuroendocrine tumor, Rectal ...cancer, Stomach cancer, Cholangiocarcinoma, Esophageal cancer, Gallbladder cancer, Anal cancer

  8. 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:

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

  9. Mark V. Larson, M.D.

    Mark V. Larson, M.D.

    1. Internist
    2. Gastroenterologist
    1. Rochester, MN
    Areas of focus:

    Upper endoscopy, Endoscopic procedure, Colon cancer, Rectal cancer, Familial adenomatous polyposis, Gastrointestinal bl...eeding

  10. Umair Majeed, M.B.B.S., M.D.

    Umair Majeed, M.B.B.S., M.D.

    1. Oncologist
    2. Hematologist
    1. Jacksonville, FL
    Areas of focus:

    Chemotherapy for colon cancer, Colon cancer, Liver cancer, Hepatocellular carcinoma, Pancreatic cancer, Rectal cancer, ...Stomach cancer, Cholangiocarcinoma, Esophageal cancer, Gallbladder cancer, Anal cancer, Stage 4 colorectal cancer

Research

Mayo Clinic doctors and scientists are studying new ways to diagnose and treat rectal cancer. Learn more about gastrointestinal cancer research.

Cancer research is conducted in coordination with Mayo Clinic Comprehensive Cancer Center. Mayo Clinic Comprehensive Cancer Center receives funding from the U.S. National Cancer Institute and is designated as a comprehensive cancer center. This designation recognizes the institution's scientific excellence and multidisciplinary resources focused on cancer prevention, diagnosis and treatment.

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

Sept. 12, 2025

Living with rectal cancer?

Connect with others like you for support and answers to your questions in the Colorectal Cancer support group on Mayo Clinic Connect, a patient community.

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