Colon and Rectal Surgery

Request an Appointment
Referrals

Doctors

Mayo Clinic in Rochester, Minnesota, Mayo Clinic in Jacksonville, Florida, and Mayo Clinic in Phoenix/Scottsdale, Arizona, are ranked among the Best Hospitals for cancer by U.S. News & World Report.

Mayo Clinic in Rochester, Minnesota, ranks No. 1 for digestive disorders in the U.S. News & World Report Best Hospitals rankings. Mayo Clinic in Phoenix/Scottsdale, Arizona, and Mayo Clinic in Jacksonville, Florida, are ranked among the Best Hospitals for digestive disorders by U.S. News & World Report. Mayo Clinic Children's in Rochester is ranked the No. 1 hospital in Minnesota and the five-state region of Iowa, Minnesota, North Dakota, South Dakota and Wisconsin, according to U.S. News & World Report's 2025–2026 "Best Children's Hospitals" rankings.

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.

Find doctors and medical staff:

Edit search filters
close

Narrow your search

  1. There are no doctors whose last name begins with the letter A
  2. Find a doctor whose last name begins with the letter B
  3. Find a doctor whose last name begins with the letter C
  4. Find a doctor whose last name begins with the letter D
  5. Find a doctor whose last name begins with the letter E
  6. There are no doctors whose last name begins with the letter F
  7. There are no doctors whose last name begins with the letter G
  8. There are no doctors whose last name begins with the letter H
  9. There are no doctors whose last name begins with the letter I
  10. There are no doctors whose last name begins with the letter J
  11. There are no doctors whose last name begins with the letter K
  12. Find a doctor whose last name begins with the letter L
  13. active Find a doctor whose last name begins with the letter M
  14. There are no doctors whose last name begins with the letter N
  15. There are no doctors whose last name begins with the letter O
  16. Find a doctor whose last name begins with the letter P
  17. There are no doctors whose last name begins with the letter Q
  18. Find a doctor whose last name begins with the letter R
  19. Find a doctor whose last name begins with the letter S
  20. There are no doctors whose last name begins with the letter T
  21. There are no doctors whose last name begins with the letter U
  22. There are no doctors whose last name begins with the letter V
  23. There are no doctors whose last name begins with the letter W
  24. There are no doctors whose last name begins with the letter X
  25. Find a doctor whose last name begins with the letter Y
  26. Find a doctor whose last name begins with the letter Z
Reset all filters

Displaying 1-4 out of 4 doctors available

Last Name Initial: M

  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:

    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

  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:

    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

  3. Amit Merchea, M.D.

    Amit Merchea, M.D.

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

    Rectal cancer surgery, Colostomy, Chemotherapy for colon cancer, Colon cancer surgery, PIPAC, Colon cancer, Crohn's dis...ease, Ulcerative colitis, Rectal cancer, 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:

    Robotic surgery, Colorectal surgery, Rectal cancer surgery, Intraoperative radiation therapy, Colostomy, Colon cancer s...urgery, Laparoscopic surgery, Colon cancer, Inflammatory bowel disease, Rectal cancer, Rectal prolapse, Anal fistula

Request an appointment
Conditions treatedExpertise & rankings
Aug. 30, 2025

Colon and Rectal Surgery

Sections