Director, Division of Gastrointestinal Surgery, Minimally-Invasive and Bariatric Surgery
Surgical Director, James A. Clifton Center for Digestive Diseases
Clinical Associate Professor of Surgery
- Gastrointestinal, Minimally-invasive and Bariatric Surgery
Primary Office: 4601 JCP
Iowa City, IA 52242
Primary Office Phone: 319-384-7359
BS, Chemistry, Nebraska Wesleyan University, Lincoln, NE
MD, University of Minnesota Medical School
Fellowship, Surgical Infectious Disease, University of Minnesota Hospital & Clinics
Fellowship, Research, University of Minnesota Cancer Center
Residency, General Surgery, University of Minnesota Hospital & Clinics
Fellowship, Colon and Rectal Surgery, University of Texas Affiliated Hospitals
Licensure and Certifications
Iowa Permanent License
State of Tennessee Medical License (inactive)
Diplomate, American Board of Surgery
Diplomate, American Board of Colon and Rectal Surgery
Fellow, American College of Surgeons
Fellow, American Society of Colon & Rectal Surgeons
Dr. Cromwell conducts clinical research related to complex medical systems.
Is the abdominal repair of rectal prolapse safer than perineal repair in the highest risk patients? An NSQIP analysis..
Diseases of the Colon & Rectum.
2012 November. 55(11):1167-72.
Medical & Surgical Management of Defecatory Disorders.
American Journal of Gastroenterology.
2012 August 21.
Treatment of rectal cancer.
N Engl J Med.
2006 December. 355(23):2487-8.
The alpha-2 and alpha-3 integrins are required for morphologic differentiation of an intestinal epithelial cell line.
2003 April. 133(4):429-37.
Treatment of locally recurrent rectal cancer.
Dis Colon Rectum.
2001 December. 44(12):1743-8.
Pelvic wall involvement denotes a poor prognosis in T4 rectal cancer.
Dis Colon Rectum.
2001 November. 44(11):1676-81.
The molecular basis of cancer metastasis.
Seminars in Colon & Rectal Surgery.
Combined rapamycin and cyclosporine immunosuppression in a procine renal transplant model.
1996 April. 28(2):984.
Prolongation of renal allograft survival in a large animal model by oral rapamycin monotherapy.
1995 January. 59(2):183-6.
Bolman 3rd R.
Prolongation of cardiac xenograft survival by depletion of complement.
1993 April. 55(4):857-65.
Date Last Modified: 07/31/2013 -