He completed a fellowship in Orthopaedic Traumatology at the Hospital for Special Surgery, Weill Cornell Medical College (2008-2009). He did his internship and residency in orthopaedic surgery at the University of Pennsylvania (2003-2008) where he also received his MD-PhD in Cell & Molecular Biology (1995-2003). Dr. Ahn received his undergraduate degree in Biological Sciences from Stanford University. He has written several peer-reviewed articles on the topic of physician-scientist trainees and their training over the years based on his own studies. His research interests include molecular modulation of bone formation and healing, outcomes based fracture care, medical education. Dr. Ahn became a member of the APSA Board of Directors in April of 2007. Dr. Ahn serves on the Fiscal Committee of the APSA Board of Directors.