Dr. Tierney received a B.A. degree (biological sciences) from Indiana University in 1973 and an MD from IU in 1976. After completing his residency in internal medicine at the Indiana University School of Medicine in 1979, he was Chief Resident at Wishard Memorial Hospital from 1979-1980. He joined the IUSM Division of General Internal Medicine and Geriatrics in 1980 where he has been a clinician-investigator focusing on the application of information technology in medicine and its effects on the quality, efficiency, and costs of health care. Dr. Tierney is a Senior Research Scientist at the Regenstrief Institute and a practicing hospital physician at Wishard Hospital.
Dr. Tierney is Director of Research for the IU Kenya Program where he and his Kenyan and American collaborators implemented the first ambulatory electronic medical record system in sub-Saharan Africa that supports care and research for Kenyans with HIV/AIDS. He also co-directs ResNet, a primary care practice-based research network of 27 inner-city and suburban primary care practice sites in central Indiana, 250 physicians, and more than 150,000 patients that has received more than $30 million in extramural funding and published more than 300 peer-reviewed articles. Dr. Tierney is Co-Editor-in-Chief of the Journal of General Internal Medicine.
Dr. Tierney is a member of the Institute of Medicine of the National Academy of Sciences and a Master of the American College of Physicians. He was elected Fellow of the American College of Medical Informatics and is listed in the Guide to America's Top Physicians published by the Consumers' Research Council of America. Dr. Tierney has received more than $20 million as principal investigator in grants and contracts from federal agencies and research foundations and has published more than 250 articles in peer-reviewed journals. Dr. Tierney was named IUPUI Chancellor's Professor in 2004 and Sam Regenstrief Professor of Health Services Research in 2010.