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Gregory D. Kennedy, MD, PhD

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Gregory D. Kennedy, MD, PhD Print Friendly Page

Faculty, University of Wisconsin School of Medicine and Public Health

Gregory D. Kennedy, MD, PhD, earned his medical degree from the University of Washington in Seattle and completed his residency in general surgery at University of Wisconsin Hospital and Clinics, followed by a fellowship in colon and rectal surgery at Mayo School of Graduate Medical Education.


Dr. Kennedy is certified by the American Board of Colon and Rectal Surgery and by the American Board of Surgery. He is also a fellow in the American College of Surgeons and the American Society of Colon and Rectal Surgeons. He specializes in the surgical treatment of colon and rectal cancer, inflammatory bowel disease - such as Crohn’s and ulcerative colitis - diverticulitis, benign conditions of the colon, rectum and anus, minimally invasive and laparoscopic approaches to diseases of the colon and rectum and endoscopic treatment of colonic disease.


Cancer Surgery

Surgery (General)

UW Health Clinics

Digestive Health Center
(608) 890-5000 | (855) 342-9900 | Map
Digestive Health Center
(608) 890-5000 | (855) 342-9900 | Map
Digestive Health Center
(608) 890-5000 | (855) 342-9900 | Map
Digestive Health Center
(608) 890-5000 | (855) 342-9900 | Map

Regional Specialty Clinics

SwedishAmerican Regional Cancer Center (Rockford)
(779) 696-9400 |  Map

Hospital Affiliation(s)

University of Wisconsin Hospital and Clinics (primary)
Veterans Hospital - Wm. S. Middleton Memorial (secondary)

UW School of Medicine and Public Health

Department of Surgery

Professional Certifications and Education

Board Certification Colon and Rectal Surgery

Colon and Rectal Surgery Fellowship, Mayo Clinic, Rochester, MN, 2006-2007

Residency University of Wisconsin Hospital and Clinics, Madison, WI
Medical School University of Washington School of Medicine, Seattle, WA, 1996


Madison Magazine Top Docs 2014

Madison Magazine Top Docs 2012

Medical interpreters are available to help patients communicate with hospital and clinic staff. For more information, please contact interpreter services at (608) 262-9000.


Our doctors provide a wide range of services. The following list represents some, but not all, of the procedures offered by this physician.


Research in the colon and rectal surgery laboratory focuses on two basic problems. First, we are interested in gaining a better understanding of the relationship between colon and rectal cancer and various environmental exposures. To this end, we are trying to gain insight into the role of PAS proteins, a family of proteins responsive to environmental stimuli, in the origin and disease development of colon and rectal cancer. Second, we employ various molecular and microscopic techniques to provide insight into those features of colon and rectal cancer that may correlate with response to treatment, recurrence, and survival.

PubMed Articles
Tevis SE Carchman EH Foley EF Heise CP Harms BA Kennedy GD . Does Anastomotic Leak Contribute to High Failure-to-rescue Rates? Ann Surg. 2015 Nov 18;
[PubMed ID: 26587851]
Weber SM Kennedy GD . Variation Reduction to Reduce Readmission: A Figment of Imagination or Reality of the Future? JAMA Surg. 2015 Nov 1;150(11):1049-50
[PubMed ID: 26244632]
Ronnekleiv-Kelly SM Nukaya M Díaz-Díaz CJ Megna BW Carney PR Geiger PG Kennedy GD . Aryl hydrocarbon receptor-dependent apoptotic cell death induced by the flavonoid chrysin in human colorectal cancer cells. Cancer Lett. 2015 Oct 26;
[PubMed ID: 26515162]
Tevis SE Carchman EH Foley EF Harms BA Heise CP Kennedy GD . Postoperative Ileus--More than Just Prolonged Length of Stay? J Gastrointest Surg. 2015 Sep;19(9):1684-90
[PubMed ID: 26105552]
Tevis SE Kennedy GD . Some Important Deficiencies in the Development, Validation, and Reporting of a Prediction Model-Reply. JAMA Surg. 2015 Sep 1;150(9):915-6
[PubMed ID: 26200594]
Sheka AC Tevis S Kennedy GD . Urinary tract infection after surgery for colorectal malignancy: risk factors and complications. Am J Surg. 2015 Jul 31;
[PubMed ID: 26298687]
Tevis SE Kennedy GD . Patient satisfaction: does surgical volume matter? J Surg Res. 2015 Jun 1;196(1):124-9
[PubMed ID: 25796107]
Tevis SE Weber SM Kent KC Kennedy GD . Nomogram to Predict Postoperative Readmission in Patients Who Undergo General Surgery. JAMA Surg. 2015 Jun;150(6):505-10
[PubMed ID: 25902340]
Kim SY Diggans J Pankratz D Huang J Pagan M Sindy N Tom E Anderson J Choi Y Lynch DA Steele MP Flaherty KR Brown KK Farah H Bukstein MJ Pardo A Selman M Wolters PJ Nathan SD Colby TV Myers JL Katzenstein AL Raghu G Kennedy GC . Classification of usual interstitial pneumonia in patients with interstitial lung disease: assessment of a machine learning approach using high-dimensional transcriptional data. Lancet Respir Med. 2015 Jun;3(6):473-82
[PubMed ID: 26003389]
Schwarze ML Barnato AE Rathouz PJ Zhao Q Neuman HB Winslow ER Kennedy GD Hu YY Dodgion CM Kwok AC Greenberg CC . Development of a list of high-risk operations for patients 65 years and older. JAMA Surg. 2015 Apr;150(4):325-31
[PubMed ID: 25692282]
Hanzlik TP Tevis SE Suwanabol PA Carchman EH Harms BA Heise CP Foley EF Kennedy GD . Characterizing readmission in ulcerative colitis patients undergoing restorative proctocolectomy. J Gastrointest Surg. 2015 Mar;19(3):564-9
[PubMed ID: 25560185]
Tevis SE Kennedy GD Kent KC . Is There a Relationship Between Patient Satisfaction and Favorable Surgical Outcomes? Adv Surg. 2015;49(1):221-33
[PubMed ID: 26299501]
Ehlenbach CC Tevis SE Kennedy GD Oltmann SC . Preoperative impairment is associated with a higher postdischarge level of care. J Surg Res. 2015 Jan;193(1):1-6
[PubMed ID: 25167781]
Huseth AS Petersen JD Poveda K Szendrei Z Nault BA Kennedy GG Groves RL . Spatial and Temporal Potato Intensification Drives Insecticide Resistance in the Specialist Herbivore, Leptinotarsa decemlineata. PLoS One. 2015;10(6):e0127576
[PubMed ID: 26030877]
Tevis SE Kohlnhofer BM Weber SM Kennedy GD . Postdischarge complications are an important predictor of postoperative readmissions. Am J Surg. 2014 Oct;208(4):505-10
[PubMed ID: 25150195]
Kennedy GD Tevis SE Kent KC . Is there a relationship between patient satisfaction and favorable outcomes? Ann Surg. 2014 Oct;260(4):592-8; discussion 598-600
[PubMed ID: 25203875]
Greenberg CC Kennedy GD . Advancing quality measurement to include the patient perspective. Ann Surg. 2014 Jul;260(1):10-2
[PubMed ID: 24896145]
Kennedy GD Nukaya M Moran SM Glover E Weinberg S Balbo S Hecht SS Pitot HC Drinkwater NR Bradfield CA . Liver tumor promotion by 2,3,7,8-tetrachlorodibenzo-p-dioxin is dependent on the aryl hydrocarbon receptor and TNF/IL-1 receptors. Toxicol Sci. 2014 Jul;140(1):135-43
[PubMed ID: 24718703]
Gibson A Tevis S Kennedy G . Readmission after delayed diagnosis of surgical site infection: a focus on prevention using the American College of Surgeons National Surgical Quality Improvement Program. Am J Surg. 2014 Jun;207(6):832-9
[PubMed ID: 24119885]
Kennedy GD . Overview: getting involved in research as a busy practicing surgeon. Clin Colon Rectal Surg. 2014 Jun;27(2):43-7
[PubMed ID: 25067916]