Leadership Bios
Department Chairs/ Division Heads/ Directors
Paul Klotman, M.D.
President and CEO
Paul Klotman, M.D., assumed the post of President and CEO at Baylor College of Medicine Sept. 1, 2010.
Dr. Klotman received his B.S. degree in 1972 from the University of Michigan and his M.D. from Indiana University in 1976. He completed his Medicine and Nephrology training at Duke University Medical Center. He stayed at Duke as a faculty member, rising to the rank of Associate Professor of Medicine before moving to the NIH in 1988 where he became Chief of the Molecular Medicine Section in the Laboratory of Developmental Biology. In 1993, he became Chief of the Viral Pathogenesis Laboratory in the NIDR/NIH. In 1994 he moved to Mt. Sinai School of Medicine as the Irene and Dr. Arthur M. Fishberg Professor of Medicine and the Chief, Division of Nephrology. In 2001, he was selected to be the Chairman of the Samuel Bronfman Department of Medicine.
Dr. Klotman is a noted scientist whose work has included both basic and clinical research in molecular virology and AIDS pathogenesis. He has been an active clinician, teacher, and mentor. Students from his laboratory have won prestigious scientific competitions. He has trained over 50 clinical fellows, postdoctoral fellows, and students in his laboratory since 1984 most of whom are independently funded. Four of his mentees are now Chairs of Medicine and four others lead major institutes or centers. He has been listed in both Castle Connelly and New York Magazine as one of the region's Best Doctors. And, he was named Physician of the Year by Mt. Sinai nurses.
William T. Butler, M.D.
Chancellor Emeritus
William T. Butler, M.D., a distinguished immunologist, joined Baylor College of Medicine in 1966 and during the following decades served the College in a variety of roles, including Associate Dean and Dean of Admissions.
In 1976, he was named Acting Executive Vice President and Dean, and in 1977, he became Executive Vice President and Dean. Two years later, Butler was named President and Chief Executive Officer of the College, and served in that position for almost 17 years. During that time, he led the College in a period of unprecedented growth and national and international recognition.
He assumed the post of Chancellor in 1996, and in 2004 became Chancellor Emeritus. Dr. Butler served as Interim President from Dec. 2008 through Aug. 2010.
Hiram F. "Gil" Gilbert, Ph.D.
Dean of the Graduate School of Biomedical Sciences
Dr. Hiram F. "Gil" Gilbert is dean of the Graduate School of Biomedical Sciences at Baylor. He is a professor in the department of biochemistry and molecular biology.
Gilbert received his Ph.D. from the University of Wisconsin and did postdoctoral work at Brandeis University. He received a Research Career Development Award from the National Institutes of Health from 1982-1986. His research interests include catalysis of protein folding.
Stephen B. Greenberg, M.D.
Dean, Medical Education
Dr. Stephen Greenberg has served as dean of medical education since August 2006. He also serves as chief of the Medicine Service at Ben Taub General Hospital and Distinguished Service Professor. He served as the chair of the Department of Medicine from 2004-2006.
Greenberg received his medical training at the University of Maryland, where he was an Alpha Omega Alpha graduate. He completed his internship and residency in medicine at the University of Maryland Hospital, and his fellowship in infectious diseases at Baylor. He became a faculty member at Baylor, where he holds appointments as professor of medicine and professor of molecular virology and microbiology, and as the Herman Brown Teaching Professor at Ben Taub General Hospital.
A recipient of numerous honors, including the Distinguished Faculty Award of the Baylor Alumni Association in 1999, he has been repeatedly listed in The Best Doctors in America®.
J. David Holcomb, Ed.D.
Dean, School of Allied Health Sciences
Dr. J. David Holcomb serves as dean of the School of Allied Health at Baylor College of Medicine, a post he has held since 2007.
Core programs in the School of Allied Health are the Nurse Anesthesia Program and the Physician Assistant Program.
Holcomb received a doctorate of education from the University of Houston, and both a bachelor's of science and master's of education from Stephen F. Austin State University.
He joined BCM in 1972 as an assistant professor of community medicine. He currently holds appointments as a professor of allied health sciences and a professor of family and community medicine.
Stephen K. Sigworth, M.D.
Vice President and Chief Medical Officer, Faculty Group Practice
Dr. Steve Sigworth joined Baylor College of Medicine in December 2010 as vice president and Chief Medical Officer of the Faculty Group Practice. He previously served as the director of the Department of Medicine Faculty Practice Associates at Mount Sinai School of Medicine. He joined the Mount Sinai medical school faculty in 2003.
From 1998 to 2003, he served as the medical director, care coordination at the Medical College of Virginia Hospitals.
He received a bachelor's of science degree from the University of Richmond, and a medical degree and master's of science in health administration from the Medical College of Virginia. He completed his residency training in internal medicine at the Medical College of Virginia.
Adam Kuspa, Ph.D.
Vice President for Research
Dr. Adam Kuspa was named to head the college's research enterprise in July 2010. He served as chair of the Verna and Marrs McLean Department of Biochemistry from March 2006 to April 2011.
A professor of biochemistry and molecular biology, Kuspa joined the BCM faculty in 1993 as an assistant professor of biochemistry. He has been involved in several research programs, including cell and molecular biology, development biology and molecular and human genetics, as well as the Human Genome Sequencing Center at BCM.
He received his doctorate in biochemistry from Stanford University. He served a postdoctoral fellowship at the University of California at San Diego.
In 2005, Kuspa received a Michael E. DeBakey, M.D. Excellence in Research Award and was elected Fellow of the American Association for the Advancement of Science.