Departments and specialties

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Displaying 1-6 out of 6 doctors available

Last Name Initial: M

  1. Harmeet Malhi, M.B.B.S.

    Harmeet Malhi, M.B.B.S.

    1. Transplant Hepatologist
    1. Rochester, MN
    Areas of focus:

    Colonoscopy, Upper endoscopy, Post-liver transplant care, Pre-liver transplant evaluation, Nonalcoholic fatty liver dis...ease, Nonalcoholic steatohepatitis, Hepatic encephalopathy, Liver injury

  2. Talha A. Malik, M.D.

    Talha A. Malik, M.D.

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

    Colonoscopy, Upper endoscopy, Crohn's disease, Inflammatory bowel disease, Ulcerative colitis

  3. George W. Marek, III, M.D., Ph.D.

    George W. Marek, III, M.D., Ph.D.

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

    Colonoscopy, Flexible sigmoidoscopy, Diagnostic endoscopy, Esophagoscopy, Polypectomy, Bravo capsule pH test, Esophagea...l dilation, Celiac disease, Gastroesophageal reflux disease, Irritable bowel syndrome, Lactose intolerance, Pelvic floor defecatory dysfunction, Colon polyps, Ehlers-Danlos syndrome, Helicobacter pylori infection, Peptic ulcer, Diarrhea, Alpha-gal allergy, Gastritis, Constipation, Alpha-1-antitrypsin deficiency, Malabsorption, Esophageal stricture, Fructose intolerance, Bile acid malabsorption

  4. Daniel B. Maselli, M.D.

    Daniel B. Maselli, M.D.

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

    Colonoscopy, Upper endoscopy, Endoscopic sleeve gastroplasty, Endoscopic mucosal resection, Intragastric balloon proced...ure, Transoral outlet reduction, Endoscopic dilation, Endoscopic biopsy, Endoscopic re-cellularization via electroporation therapy, Obesity, Metabolic syndrome, Colonic dysmotility, Gastroesophageal reflux disease, Colon polyps, Diarrhea, Esophageal varices, Constipation, Gastrointestinal bleeding, Fatty liver disease, Esophageal stricture, Gastrointestinal fistula, Gastrointestinal infection

  5. 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

  6. 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:

    Colonoscopy, Robotic surgery, Colorectal surgery, Rectal cancer surgery, Colectomy, Proctectomy, Colostomy, Ileoanal an...astomosis surgery, Colon cancer surgery, Anorectal surgery, Laparoscopic surgery, Small bowel resection, Ileostomy surgery, Bowel resection, Hemorrhoidectomy, Hemorrhoidal banding, Colon cancer, Crohn's disease, Inflammatory bowel disease, Ulcerative colitis, Hemorrhoids, Anal cancer, Colon polyps, Rectal cancer, Diverticulitis, Anal fissure, Anal fistula, Familial adenomatous polyposis, Anal squamous cell carcinoma, Polyposis syndromes, Perianal abscess

Research Profiles

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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. Medical review (expert opinion). Mayo Clinic. April 4, 2022.