Photo of Kevin G. Billingsley, M.D.

Kevin G. Billingsley M.D.

  • (503) 494-5501
    • Professor of Surgery, Division of Surgical Oncology School of Medicine
    • Hedinger Chair of Surgical Oncology Surgery School of Medicine

My research involves a variety of outcomes studies focusing on the optimal treatment of patients with gastrointestinal tumors ranging from liver cancer to colorectal cancer. I also participate in the development and analysis of large multi-institutional clinical trials in gastrointestinal cancer. Our research team has recently launched a new liver tumor registry that will focus on patients with primary liver cancer. The registry will bank tissue specimens and also prospectively collect clinical data. Our aim is to better understand the risk factors, biology and treatment outcomes for this very difficult cancer.


  • B.S., Stanford University, Palo Alto California 1985
  • M.D., The Johns Hopkins University, School of Medicine, Baltimore Maryland 1989
  • Residency:

    • Surgery, Oregon Health & Science University
  • Fellowship:

    • Surgery branch, metabolism section, National Cancer Institute, 1994
  • Certifications:

    • American Board of Surgery, 1997 (recertified 2007)

Memberships and associations

  • American Society of Clinical Oncology
  • Southwest Oncology Group
  • Society of Surgical Oncology
  • American College of Surgeons
  • Association of Academic Surgery
  • American Hepato-Pancreato-Biliary Association
  • Society for Surgery of the Alimentary Tract
  • James IV Association
  • North Pacific Surgical Association
  • Seattle Surgical Society
  • Western Surgical Association
  • Pacific Coast Surgical Association
  • Portland Surgical Society


  • "Race, treatment, and survival of veterans with cancer of the distal esophagus and gastric cardia." Medical Care January 2002
  • "Pulmonary metastases from soft tissue sarcoma" Annals of Surgery May 1999
  • "The international normalized ratio overestimates coagulopathy in patients after major hepatectomy" American Journal of Surgery  2014
  • "A population-based analysis of surgical and adjuvant therapy for resected gastric cancer" Gastrointestinal Cancer Research November 2010
  • "Current status of colorectal cancer therapy"   2006
  • "Lymphoplasmacytic sclerosing pancreatitis" Journal of Gastrointestinal Surgery January 2003
  • "Macrophage-Derived tumor necrosis factor and Tumor-Derived of leukemia inhibitory factor and interleukin-6" Annals of Surgical Oncology  1996
  • "Erratum" American Journal of Surgery June 2011
  • "Follow-up care for cancer" ONCOLOGY (United States)  2000
  • "Clinical utility and cost-effectiveness of routine preoperative computed tomography scanning in patients with colon cancer" American Journal of Surgery May 2005
  • "Does Surgeon Case Volume Influence Nonfatal Adverse Outcomes after Rectal Cancer Resection?" Journal of the American College of Surgeons June 2008
  • "Evolving Preoperative Evaluation of Patients with Pancreatic Cancer" Journal of the American College of Surgeons January 2009
  • "Phase II trial of romidepsin (NSC-630176) in previously treated colorectal cancer patients with advanced disease" Investigational New Drugs October 2009
  • "Response - Re" Journal of the National Cancer Institute December 2008
  • "Residual treatment disparities after oncology referral for rectal cancer" Journal of the National Cancer Institute May 2008
  • "Diagnostic laparoscopy for patients with potentially resectable pancreatic adenocarcinoma" Journal of Gastrointestinal Surgery July 2008
  • "Safety and Outcomes Following Resection of Colorectal Liver Metastases in the Era of Current Perioperative Chemotherapy" Journal of Gastrointestinal Surgery December 2013
  • "Multifactorial analysis of the survival of patients with distant metastasis arising from primary extremity sarcoma" Cancer  1999
  • "Image of the month" JAMA Surgery October 2008
  • "Racial Disparities in Rectal Cancer Treatment" JAMA Surgery February 2004
  • "Malignancy does not dictate the hypercoagulable state following liver resection" American Journal of Surgery May 1 2015
  • "Modern technical approaches in resectional hepatic surgery" Surgical Oncology Clinics of North America January 1 2015
  • "Localization and operative management of undescended parathyroid adenomas in patients with persistent primary hyperparathyroidism" Surgery (United States)  1994
  • "Argon plasma coagulation for rectal bleeding after prostate brachytherapy" International Journal of Radiation Oncology Biology Physics November 1 2001
  • "Completion of therapy by medicare patients with stage III colon cancer" Journal of the National Cancer Institute May 3 2006
  • "Bile duct involvement portends poor prognosis in resected gallbladder carcinoma" Gastrointestinal Cancer Research July 2013
  • "Surgeon and hospital characteristics as predictors of major adverse outcomes following colon cancer surgery" JAMA Surgery  2007
  • "Portal vein ligation as an efficient method of increasing the future liver remnant volume in the surgical treatment of colorectal metastases" JAMA Surgery October 2008
  • "Care of patients after esophagectomy." Critical Care Nurse February 2004
  • "Defining the optimal radiation dose with three-dimensional conformal radiation therapy for patients with nonmetastatic prostate carcinoma by using recursive partitioning techniques" Cancer September 1 2001

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