Candidate, United States House of Representatives, District 2, 2010

Former Member, Faculty Advisory Board, Maryland Higher Education Commission

Surgeon, University of Maryland Hospital for Children, 1993-present

Resident/Fellow, Children's Hospital of Boston

Resident/Fellow, Children's Hospital of Philadelphia

Research Fellow, Harvard University

Resident/Fellow, Texas Heart Institute

Member, Academy Health

Member, Campus Sustainability Committee, University of Maryland, Baltimore

Member, Education Committee, Thoracic Surgery Foundation for Research and Education

Founding Member, World Society for Pediatric and Congenital Cardiac Surgery