Department of Surgery


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Timothy R. Billiar, MD
George Vance Foster Professor and Chair, Department of Surgery
Research Interests
mechanisms involved in acute cellular and organ injury in inflammatory states such as shock, trauma, and sepsis
Gretchen M. Ahrendt, MD, FACS
Chief, Division of Breast Surgical Oncology
Sally E. Carty, MD, FACS
Chief, Division of Endocrine Surgery
Research Interests
minimally invasive parathyroid and thyroid surgery; Multiple Endocrine Neoplasia Syndromes; immunohistochemical, allelic, and molecular predictors of endocrine malignancy
Anita P. Courcoulas, MD, MPH, FACS
Chief, Division of Minimally Invasive & Metabolic Surgery
Research Interests
metabolic surgery to treat type 2 diabetes; long-term health outcomes of bariatric surgery; evaluation of new surgical technology and devices
David A. Geller, MD
Chief, Division of Hepatobiliary and Pancreatic Surgery
Research Interests
transcriptional regulation of the human iNOS gene; molecular mechanisms of liver injury; liver transplant ischemia/reperfusion injury; gene therapy for liver cancer; HCC signaling pathways; liver cancer therapy
George K. Gittes, MD
Chief, Division of Pediatric Surgery
Research Interests
Smad regulation of pancreatic islet formation
Abhinav Humar, MD
Chief, Division of Abdominal Transplantation Surgery
Research Interests
partial liver transplants and hepatic regeneration; kidney, liver and pancreas transplant outcomes; CMV disease in transplantation
Michel S. Makaroun, MD
Chief, Division of Vascular Surgery
Research Interests
endovascular aneurysm repair and dissection; biomechanical predictors of aneurysm rupture; carotid artery stenting
David S. Medich, MD, FACS, FASCRS
Chief, Division of Colon and Rectal Surgery
William R. Wagner, PhD
Director, McGowan Institute for Regenerative Medicine
Research Interests
medical device biocompatibility and design; cardiovascular tissue engineering; targeted vascular imaging
Mark A. Wilson, MD, PhD
Chief of Surgery and Medical Director, Surgical Service, VA Pittsburgh Healthcare System
Herbert J. Zeh III, MD
Chief, Division of Gastrointestinal Surgical Oncology
Research Interests
role of DAMPs/RAGE in pancreatic cancer
Brian S. Zuckerbraun, MD, FACS
Chief, Division of General/Trauma and Acute Care Surgery
Research Interests
acute inflammatory response in the liver and vasculature following injury from trauma/hemorrhagic shock, sepsis, or direct vascular injury
Othman Abdul-Malak, MD
General Surgery Resident (PGY-2)
Derek Afflu, MD
General Surgery Resident (PGY-1)
Bestoun H. Ahmed, MD, FACS, FRCS, FICS, FICMS
Associate Professor
Steven A. Ahrendt, MD
Associate Professor of Surgery
Georges Elie Al-Khoury, MD
Assistant Professor of Surgery
Louis H. Alarcon, MD, FACS, FCCM
Professor of Surgery and Critical Care Medicine
Research Interests
coagulopathy of trauma; blunt solid organ injuries; resuscitation of trauma patients; nutritional support of critically-ill patients; surgical infection prevention & treatment
Jurgis Alvikas, MD
General Surgery Resident (PGY-2)
Kelly Ann Miller Austin, MD, MS, FACS, FAAP
Associate Professor of Surgery
Research Interests
Hirschsprung's disease; Hirschsprung's enterocolitis; pediatric intestinal diseases; ischemia/reperfusion
Efthymios D. Avgerinos, MD
Associate Professor of Surgery
Stephen Badylak, DVM, PhD, MD
Professor of Surgery
Research Interests
regenerative medicine; biomaterials
Karen Barry
Operations Manager & Administrative Assistant to Edward M. McQuade
David L. Bartlett, MD
Dr. Bernard Fisher Professor of Surgery
Research Interests
tumor selective oncolytic vaccinia viruses; immunotherapy; regional cancer therapies; HIPEC; peritoneal surface malignancies; translational research; peritoneal mesothelioma; therapeutic cancer vaccines
Phyllis Baska
Physician Educator
Eileen Bauer, PhD
Assistant Professor of Surgery
Research Interests
role of the innate immune system in pulmonary vascular disease
Graciela Bauzá, MD
Assistant Professor of Surgery and Surgical Critical Care
Research Interests
chest wall reconstruction after trauma; necrotizing soft tissue infections; student and resident education and simulation
Tim Bell
Finance Manager
Sara E. Berkey, MD
General Surgery Resident (Lab)
Marguerite Bonaventura, MD, FACS
Associate Professor of Surgery
Geoff J. Bond, MD
Assistant Professor in Pediatric Surgery
Research Interests
pediatric intestinal failure; adult and pediatric transplantation; short bowel syndrome
Yvonne Brewster, MPM
Manager, Research Administration and Finance
Joshua B. Brown, MD
General Surgery Resident (PGY-4)
Marc Edward Brozovich, MD, FASCRS, FACS
Clinical Associate Professor of Surgery
Thomas V. Cacciarelli, MD
Associate Professor of Surgery
Research Interests
infectious complications in liver transplantation; hepatocellular carcinoma; access to liver transplantation in the VA population
Geoffrey Camirand, PhD
Research Assistant Professor of Surgery
Research Interests
regulatory CD4+ T cell function within allografts; secondary lymphoid tissues in regulatory CD4+ T cell homeostasis; inflammation and the expansion of regulatory CD4+ T cells in transplantation
James P. Celebrezze Jr., MD, FACS, FASCRS
Assistant Professor of Surgery
Research Interests
colon & rectal cancer; minimally invasive therapy; surgical management of diverticulitis and IBD
Rabih A. Chaer, MD
Professor of Surgery
Research Interests
venous disease; aortic aneurysm
Mohammad Haroon Asif Choudry, MBBS, FACS
Assistant Professor of Surgery
Cody Clarke
Associate Project Manager