- 2020Workforce on Surgical Treatment of Adults With Congenital Heart DiseaseThe Society of Thoracic Surgeons 
- 2012MemberZumbro Valley Medical Society, Minnesota Medical Association 
- 2010MemberAmerican Association for Thoracic Surgery 
- 2005 - 2007ChairRegion 2 Thoracic Program Directors 
- 2005FellowAmerican Society of Angiology 
- 2002MemberThoracic Organ Transplantation Committee, American Society of Transplant Surgeons 
- 2001FellowAmerican College of Surgeons 
- 2001FellowAmerican College of Chest Physicians 
- 2001MemberSociety of Thoracic Surgeons 
- 1999 - 2001MemberUniversity of Pennsylvania Medical Center 
- 1999FellowAmerican College of Cardiology 
- 1996MemberAmerican Heart Association 
- 1993MemberNew York Academy of Sciences 
- 1991MemberInternational Society for Heart and Lung Transplantation 
- 1980MemberAmerican Association for the Advancement of Science