Gastrointestinal and General Surgery Research

Sandy Fang, M.D.

Dr. Sandy Fang

Title: Associate Professor of Surgery

Research Focus: Colorectal Cancer, Anal Cancer (HRA), Surgical Outcomes, Quality improvement and innovative surgical techniques

Daniel Herzig, M.D.

Dr. Daniel Herzig

Title: Professor of Surgery

Research Focus: Colorectal Cancer Outcomes, Colorectal Cancer Syndromes and Surgical device trials

Robert Martindale, M.D., Ph.D.

Dr. Robert Martindale

Title: Professor of Surgery

Research Focus: Hernia research, surgical nutrition and metabolism and surgical outcomes

Current projects:

  • Feeding blenderized food to ICU patients

OHSU Profile

Sean Orenstein, M.D.

Dr. Sean Orenstein

Title: Associate Professor of Surgery

Research Focus: Hernia outcomes and technique research, device trials, quality improvement and telemedicine research

Brett C. Sheppard, M.D., FACS

Dr. Brett Sheppard

Title: Professor of Surgery; William E. Colson Chair of Pancreatic Disease Research; Vice Chair for Quality and Clinical Operations

Research Focus: Pancreatic cancer, surgical outcomes, early detection and improved therapies for pancreatic cancer

Liana Tsikitis, M.D., M.C.R., M.B.A.

Dr. Liana Tsikitis

Title: Professor and Division Head of Gastrointestinal and General Surgery

Research Focus: Colorectal Cancer (early onset and outcomes research), Microbiome, and Diversity, Equity and Inclusion