John W. Cromwell, MD

Colorectal Surgeon
4.85 out of 5 (202 ratings)

Associate CMO / Director, Surgical Quality and Safety, Clinical Professor
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"What I really enjoy about surgery is that we can have such an immediate, profound impact on patients through the surgical treatment we administer." — John W. Cromwell




Adult Specialties

  • Colorectal surgery

Special Procedures and Treatments

  • Anal sphincter repair
  • Anoplasty
  • Colonoscopy
  • Hemorrhoidal ligation
  • Hemorrhoidectomy
  • Lateral internal sphincterotomy
  • Minimally invasive surgery
  • Ostomy construction
  • Rectopexy for rectal prolapse
  • Removal of polyps using endoscopic submucosal dissection (ESD)
  • Resection of the colon and rectum
  • Restorative proctocolectomy (J-pouch)
  • Sacral neuromodulation

Diseases and Conditions

  • Anal cancer
  • Anal fissure
  • Anorectal disorders
  • Anorectal fistula
  • Benign anal strictures
  • Colon cancer
  • Colorectal cancer
  • Crohn's disease
  • Diverticular disease of the colon
  • Fecal incontinence
  • Hemorrhoids
  • Hereditary colon cancer syndromes
  • Rectal cancer
  • Rectal prolapse
  • Rectovaginal fistula
  • Ulcerative colitis


105 East 9th Street
Coralville, IA 52241

200 Hawkins Drive
Iowa City, IA 52242



  • American Board of Colon and Rectal Surgery
  • American Board of Colon and Rectal Surgery (Colon and Rectal Surgery)
  • American Board of Surgery
  • American Board of Surgery (General Surgery)
  • Iowa Board of Medicine


  • MD, University of Minnesota Medical School, Minneapolis
  • BS, Chemistry, Nebraska Wesleyan University, Lincoln, Neb.


Surgery, University of Minnesota Hospitals, Minneapolis


  • Colon and Rectal Surgery, University of Texas Health Science Center at Houston, Houston
  • Surgical Infectious Disease, University of Minnesota Hospital and Clinics, Minneapolis
  • Research, University of Minnesota Cancer Center, Minneapolis


The number of stars is an average of all responses to provider-related questions from Press Ganey patient satisfaction surveys. Responses are measured on a scale of 1 to 5, with 5 being the best score. About our ratings.

Overall Rating

4.85 out of 5 (202 ratings)