Timothy R. Billiar, M.D.

Dr. Timothy R. Billiar joined the University of Pittsburgh in 1992 as the first Samuel P. Harbison endowed assistant professor of Surgery.  Currently, he is George Vance Foster Professor and Chair in the Department of Surgery. He is also a deputy director in the Molecular Medicine Institute and principal investigator of the Billiar Laboratory.

Dr. Billiar holds an MD from the University of Chicago, Pritzker School of Medicine. As a postgraduate, he did a residency and fellowship at the University of Minnesota and also completed a fellowship at Pitt before he joined the faculty here. In addition to his academic appointments, Dr. Billiar holds a position as general surgery staff physician and trauma staff physician at UPMC Shadyside Hospital.

Currently, Dr. Billiar is involved in several research projects within the Billiar Lab. The main research interest of the laboratory is the regulation and function of inducible nitric oxide synthase (iNOS). Other areas of interest include apoptosis, gene therapy, hypoxia, shock, inflammation and liver disease. Dr. Billiar’s lab is a prime example of a productive and well-funded lab with both PhDs and MDs working together in a coordinated fashion for the pursuit of knowledge and the advancement of science.

As a result of his research, Dr. Billiar has gained an international reputation for his contributions to understanding the role of nitric oxide in gene therapy, trauma, liver disease, and other potential clinical applications.  He holds six US patents associated with his research.

Dr. Billiar has written for numerous publications and has been the recipient of consistent grant money from the NIH and other institutions. He was recognized in the Best Doctors In America for 2003-2004 and 2005-2006.


Timothy R. Billiar, M.D.
Phone: (412) 647-1749
Email: billiartr@upmc.edu