- 2020 - presentEditorial Board MemberVideo-Assisted Thoracic Surgery (VATS) 
- 2020 - presentMemberEuropean Society of Thoracic Surgeons 
- 2020 - presentAbstract ReviewerSociety of Thoracic Surgeons 
- 2019 - presentMemberRoyal Society of Medicine 
- 2019 - presentFellowRoyal College of Surgeons of England 
- 2018 - presentChairTrauma & Critical Care Surgery Division 
- 2018 - presentAbstract Reviewer26th Annual Meeting of the European Society of Thoracic Surgeons  
- 2018 - presentFacultyEuropean Society of Thoracic Surgeons (ESTS) 
- 2018 - presentAssociate EditorFrontiers in Surgery 
- 2017 - 2021MemberMayo Clinic Cancer Center 
- 2017 - 2020ChairMayo Clinic United Kingdom/Europe Regional Development Group 
- 2017 - 2019MemberMayo Clinic International Committee 
- 2017 - 2019Medical DirectorMayo Clinic Division of Brand Strategy and Creative Studio 
- 2017 - presentChairMayo Clinic United Kingdom/Western Europe Regional Demand Generation Team 
- 2017 - presentAbstract Reviewer25th Annual Meeting of the European Society of Thoracic Surgeons 
- 2017 - presentAbstract Reviewer54th Annual Meeting of the Society of Thoracic Surgeons 
- 2016 - presentAbstract ReviewerEuropean Society of Thoracic Surgeons 
- 2015 - 2019CouncilorMinnesota Surgical Society 
- 2015 - 2017Medical DirectorMayo Clinic Office of Brand Management, Mayo Clinic Committees 
- 2015ChairAmerican Association for Thoracic Surgery Evarts Graham Fellowship Committee, American Association for Thoracic Surgery 
- 2015Abstract Reviewer52nd Annual Meeting of the Society of Thoracic Surgeons, Society of Thoracic Surgeons 
- 2015Abstract Reviewer23rd Annual Meeting of the European Society of Thoracic Surgeons, European Society of Thoracic Surgeons 
- 2015 - presentChairBrand Management Executive Committee 
- 2015 - presentMemberMinnesota Surgical Society 
- 2014 - presentMemberDivision of General Thoracic Surgery, Program Evaluation Committee 
- 2014 - presentMemberDivisions of Cardiovascular Surgery and General Thoracic Surgery, Program Evaluation Committee 
- 2014 - 2015ChairWorkforce on Patient Safety, Society of Thoracic Surgeons 
- 2014 - 2015ChairSociety of Thoracic Surgeons Council on Quality, Research and Patient Safety Operating Board, Society of Thoracic Surgeons 
- 2014Abstract Reviewer22nd Annual Meeting of the European Society of Thoracic Surgeons, European Society of Thoracic Surgeons 
- 2014MemberWorkgroup on Anterior Mediastinal Masses International Thymic Malignancy Interest Group 
- 2014MemberWorkgroup on Postoperative Atrial Fibrillation, American Association for Thoracic Surgery 
- 2014 - presentFounding MemberWortman Lung Cancer Foundation 
- 2014 - presentFaculty40th Annual Toronto Thoracic Surgery Refresher Course 
- 2014 - presentFaculty4th International Congress of the Russian Association of Thoracic Surgeons 
- 2013 - 2019Vice ChairDepartment of Surgery Practice, Department of Surgery 
- 2013MemberSociety of Thoracic Surgeons 
- 2013Program ChairAmerican Association for Thoracic Surgery 
- 2013FacultyAmerican Association for Thoracic Surgery 
- 2013 - presentMemberExecutive Committee, Department of Surgery 
- 2013 - presentMemberSurgical Adminstrative Committee, Department of Surgery 
- 2013 - presentMemberQuality Committee, Department of Surgery 
- 2013 - presentMemberMayo Clinic Cancer Care Advisory Council 
- 2013 - presentMemberOutpatient Practice Executive Committee 
- 2013 - presentMemberOutpatient Practice Committee, Mayo Clinic Clinical Practice Committee, Mayo Clinic Committees 
- 2013 - presentMemberAccess Executive Subcommittee 
- 2013 - presentAbstract ReviewerEuropean Society of Thoracic Surgeons 
- 2012 - 2019Practice ChairMayo Clinic Division of General Thoracic Surgery, Department of Surgery 
- 2012 - 2019MemberDepartment of Surgery, Clinical Practice Committee 
- 2012Faculty47th Annual Meeting of the Society of Thoracic Surgeons, Society of Thoracic Surgeons 
- 2012ReviewerGerman Research Foundation 
- 2012ReviewerPhysicians' Services Incorporated Foundation 
- 2012 - presentMemberAmerican Association for Thoracic Surgery 
- 2012 - presentAbstract ReviewerEuropean Society of Thoracic Surgeons 
- 2011 - 2015MemberMayo Clinic Brand Committee 
- 2011 - 2014MemberAmerican Association for Thoracic Surgery 
- 2011 - 2012MemberScientific Committee, 7th International Meeting on General Thoracic Surgery 
- 2011 - 2012MemberMayo Clinic eHealth Advisory Group 
- 2011Abstract Reviewer19th Annual Meeting of the European Society of Thoracic Surgeons, European Society of Thoracic Surgeons 
- 2011Site ReviewerCanadian Cystic Fibrosis Foundation 
- 2011Chair46th Annual Meeting of the Society of Thoracic Surgeons, Society of Thoracic Surgeons 
- 2011 - presentMemberFrontiers in Thoracic Oncology 
- 2010 - 2019MemberEuropean Society of Thoracic Surgeons 
- 2010 - 2013Vice ChairEnterprise Marketing Council, Mayo Clinic Marketing Committee, Mayo Clinic Committees 
- 2010 - 2012ChairMayo Clinic Enterprise Transplant Center Marketing Council, William J von Liebig Transplant Center 
- 2010 - 2012MemberQuality Committee, William J von Liebig Transplant Center 
- 2010 - 2012MemberQuality Executive Subcommittee, Department of Surgery 
- 2010FacultyMinimally Invasive Esophageal Surgery Master Class, European School of Thoracic Surgery, European Society of Thoracic Surgeons 
- 2010FacultyEuropean School of Thoracic Surgery, Minimally Invasive Lung Surgery Masters Class, European Society of Thoracic Surgeons 
- 2010FacultyEuropean School of Thoracic Surgery, European Society of Thoracic Surgeons 
- 2010Abstract Reviewer18th Annual Meeting of European Society of Thoracic Surgeons, European Society of Thoracic Surgeons 
- 2010Abstract Reviewer47th Annual Meeting of the Society of Thoracic Surgeons, Society of Thoracic Surgeons 
- 2010FacultyMasters of Minimally Invasive Surgery 
- 2010Expert ConsultantEuropean School of Thoracic Surgery, Minimally Invasive Lung Surgery Masters Class, European Society of Thoracic Surgeons 
- 2010FacultyEuropean School of Thoracic Surgery, European Society of Thoracic Surgeons 
- 2010Chair18th Annual Meeting of European Society of Thoracic Surgeons, European Society of Thoracic Surgeons 
- 2010Expert ConsultantMinimally Invasive Esophageal Surgery Master Class, European School of Thoracic Surgery, European Society of Thoracic Surgeons 
- 2010 - presentMemberScientific Council for Pulmonary Transplantation Quality of Life Workforce 
- 2010 - presentMemberEuropean Society of Thoracic Surgeons 
- 2009 - 2017MemberAmerican Association for Thoracic Surgery 
- 2009 - 2017MemberCentennial Anniversary Committee, American Association for Thoracic Surgery 
- 2009 - 2010MemberScientific Committee, 6th International Meeting on General Thoracic Surgery 
- 2009 - 2010MemberEuropean Society of Thoracic Surgeons 
- 2009MemberMayo Clinic Travel Redesign Task Force 
- 2009MemberAATS Evarts Graham Traveling Fellowship Recipient: Dr. Juanjo Fibla (Barcelona, Spain), American Association for Thoracic Surgery 
- 2009Member17th Annual Meeting of the European Society of Thoracic Surgeons, European Society of Thoracic Surgeons 
- 2009Member46th Annual Meeting of the Society of Thoracic Surgeons, Society of Thoracic Surgeons 
- 2009MemberExternal Lung Transplant Program
Program reviewed: University of Alberta, Edmonton, Canada, Canadian Cystic Fibrosis Foundation 
- 2009MemberAmerican Association for Thoracic Surgery 
- 2009DirectorESTS-ISDE Symposium on Barrett's Esophagus, 17th Annual Meeting of the European Society of Thoracic Surgeons, European Society of Thoracic Surgeons 
- 2009ChairEsophageal Surgery", Post-graduate course scientific session ", 17th Annual Meeting of the European Society of Thoracic Surgeons 
- 2009Jury member17th Annual Meeting of the European Society of Thoracic Surgeons, European Society of Thoracic Surgeons 
- 2009Moderator and FacultyScientific Committee, 6th International Meeting on General Thoracic Surgery 
- 2009 - presentReviewer/ConsultantExternal Lung Transplant Program
Program reviewed: University of Alberta, Edmonton, Canada, Canadian Cystic Fibrosis Foundation 
- 2008 - 2012MemberLifeSource Organ Procurement Organization 
- 2008 - 2011ChairTask Force on Website Development for the Workforce on Research and Clinical Trials, Society of Thoracic Surgeons 
- 2008 - 2011MemberTask Force on Early Career Development, Society of Thoracic Surgeons 
- 2008 - 2009MemberProgram Committee - 17th Annual Meeting of the European Society of Thoracic Surgeons, Krakow, Poland, European Society of Thoracic Surgeons 
- 2008FacultyOesophageal Surgery Course, Elancourt, France, European Society of Thoracic Surgeons 
- 2008Abstract Reviewer16th Annual Meeting of the European Society of Thoracic Surgeons, European Society of Thoracic Surgeons 
- 2008MemberMinimally Invasive Esophageal Surgery Master Class, European School of Thoracic Surgery, European Society of Thoracic Surgeons 
- 2007 - 2012MemberWorkforce on the STS Office of Research, Council on Quality, Research, and Patient Safety, Society of Thoracic Surgeons 
- 2007 - 2012MemberSociety of Thoracic Surgeons Council on Quality, Research and Patient Safety - Workforce on Research and Clinical Trials, Society of Thoracic Surgeons 
- 2007 - 2011ChairSpiration, Inc. 
- 2007 - 2011MemberInternational Relations Committee, European Society of Thoracic Surgeons 
- 2007 - 2010MemberScientific Committee, European Society of Thoracic Surgeons 
- 2007 - 2009Vice ChairMayo Clinic Marketing Committee, Mayo Clinic Committees 
- 2007 - 2008MemberProgram Committee - 16th Annual Meeting of the European Society of Thoracic Surgeons, Bologna, Italy, European Society of Thoracic Surgeons 
- 2007 - 2008MemberPlanning Committee Task Force - Clinical Research Symposium, Fort Lauderdale, Florida, Society of Thoracic Surgeons 
- 2007Abstract Reviewer15th Annual Meeting of the European Society of Thoracic Surgeons, European Society of Thoracic Surgeons 
- 2007ContributorEuropean School of Thoracic Surgery, European Society of Thoracic Surgeons 
- 2007 - presentMemberSociety of Thoracic Surgeons 
- 2006 - 2012MemberExecutive Committee, William J von Liebig Transplant Center 
- 2006 - 2012MemberClinical Practice Committee, William J von Liebig Transplant Center 
- 2006 - 2010MemberSurgical Quality Assessment and Improvement Subcommittee, Clinical Practice Quality Oversight Subcommittee - Rochester, Clinical Practice Committee - Rochester 
- 2006 - 2009MemberMayo Clinic Marketing Committee, Mayo Clinic Committees 
- 2006 - 2007Vice ChairMayo Clinic Security Council 
- 2006Abstract Reviewer43rd Annual Meeting, Society of Thoracic Surgeons 
- 2006MemberEuropean Society of Thoracic Surgeons Working Group on Lung Metastasectomy 
- 2006 - presentMemberCancer Interest Group, Department of Surgery 
- 2006 - presentMemberEuropean Society of Thoracic Surgeons 
- 2005 - 2012Surgical DirectorLung Transplant Program, William J von Liebig Transplant Center 
- 2005 - 2012Mayo Clinic Cardiothoracic Transplantation Website Development Committee, William J von Liebig Transplant Center 
- 2005Abstract Reviewer42nd Annual Meeting of the Society of Thoracic Surgery, Society of Thoracic Surgeons 
- 2005 - presentMemberLung Transplant Program, William J von Liebig Transplant Center 
- 2005 - presentMemberUnited Network for Organ Sharing 
- 2005 - presentMemberNorth Central Cancer Treatment Group 
- 2004 - 2005SecretaryMayo Clinic Thoracic Society, Mayo Clinic Rochester Societies 
- 2004 - presentMemberSouthern Thoracic Surgical Association 
- 2004 - presentMemberInternational Society for Diseases of the Esophagus 
- 2004 - presentMemberEsophageal Cancer Working Group, American College of Surgeons Oncology Group 
- 2003 - 2009MemberFaculty of 1000 
- 2003 - 2007MemberTransplant/Immunology Steering Committee, American College of Chest Physicians 
- 2003 - 2005Vice ChairInformation Security Subcommittee, Information Technology Committee - Rochester, Mayo Clinic Rochester Committees 
- 2003MemberEvarts Graham AATS Traveling Fellow - Local Sponsor, Secondary Site Visit. Cliff Choong, MBBS, American Association for Thoracic Surgery 
- 2003 - presentMemberPriestley Society 
- 2003 - presentMemberClinical Events Committee - Pilot Study of Intra-Bronchial Valve (IBV TM), Spiration, Inc. 
- 2002 - presentMemberDepartment of Surgery 
- 2002 - 2008ChairMayo Clinic General Thoracic Surgery Patient Education Committee, Department of Surgery 
- 2002 - 2006ChairMayo Clinic General Thoracic Surgery Website Development Committee, Department of Surgery 
- 2002 - 2006MemberMayo Clinic General Thoracic Surgery Website Development Committee, Department of Surgery 
- 2002 - 2005MemberMayo Clinic Cardiothoracic Transplantation Website Development Committee, Cardiothoracic Transplantation, Division of Transplantation Surgery 
- 2002 - 2005MemberMayo Clinic Cardiothoracic Transplantation Website Development Committee, William J von Liebig Transplant Center 
- 2002 - 2003MemberInformation Security Subcommittee, Information Technology Committee - Rochester, Mayo Clinic Rochester Committees 
- 2002 - presentMemberMayo Surgical Society, Mayo Clinic Rochester Societies 
- 2002 - presentMemberMayo Clinic Thoracic Society, Mayo Clinic Rochester Societies 
- 2002 - presentMemberMayo Clinic General Thoracic Surgery Patient Education Committee, Department of Surgery 
- 2002 - presentMemberZumbro Valley Medical Society, Minnesota Medical Association 
- 2002 - presentMemberMinnesota Medical Association 
- 2001 - presentMemberAmerican College of Chest Physicians 
- 2000 - presentMemberGeneral Thoracic Surgery Club 
- 1998MemberContract Negotiating Team, Professional Association of Internes and Residents of Ontario 
- 1997 - 1998Assistant Research SupervisorSummer Student Program, Institute of Medical Science, University of Toronto 
- 1997 - 1998Executive MemberSection of Residents, Ontario Medical Association 
- 1997 - 1998Executive SecretaryProfessional Association of Internes and Residents of Ontario 
- 1997MemberPlanning Committee, Integrity in Research Symposium, University of Toronto 
- 1997 - presentMemberInternational Society for Heart and Lung Transplantation 
- 1996 - 1998MemberBoard of Directors, Canadian Association of Interns & Residents, Royal College of Physicians and Surgeons of Canada 
- 1996 - 1998MemberClinician Investigator Program, Royal College of Physicians and Surgeons of Canada 
- 1996 - 1997RepresentativeCanadian Association of Interns & Residents, Royal College of Physicians and Surgeons of Canada 
- 1996 - 1997Executive MemberProfessional Association of Internes and Residents of Ontario 
- 1996 - 1997Hospital RepresentativeGeneral Council, Toronto General Hospital, Professional Association of Internes and Residents of Ontario 
- 1996Media & Community SpokespersonDialogue '96, Professional Association of Internes and Residents of Ontario 
- 1994PresidentMedical School Class of 1994, University of Ottawa 
- 1994 - presentMemberCanadian Medical Association 
- 1994 - presentMemberOntario Medical Association 
- 1991 - 1995MemberPremier's Council on Health 
- 1991 - 1995MemberAdvisory Council to the Premier of Ontario, Premier's Council on Health 
- 1990 - 1994JudgeStudent Court, University of Ottawa 
- 1989 - 1994SenatorUniversity of Ottawa 
- 1989 - 1990MemberConstituency Assistant to Howard McCurdy, House of Commons 
- 1988 - 1989MemberSpecial Assistant to Dave Cooke, Queen's Park, Ontario 
- 1988ResearcherFinancial Post Parliamentary Database 
- 1988Freelance WriterFinancial Post Parliamentary Database 
- 1988MemberFinancial Post Parliamentary Database 
- 1987 - 1988Parliamentary PageHouse of Commons 
- 1987 - 1988MemberSpecial Assistant to Rod Murphy, House of Commons 
-  MemberSociety for Surgery of the Alimentary Tract 
-  MemberWestern Surgical Association 
-  MemberWorld Association of Medical Editors 
-  FellowAmerican College of Surgeons 
-  MemberSurgical Outcomes Club, American College of Surgeons 
-  MemberAmerican Association for Thoracic Surgery 
-  SponsorAATS Evarts Graham Traveling Fellowship Recipient: Dr. Juanjo Fibla (Barcelona, Spain), American Association for Thoracic Surgery 
-  Abstract Reviewer17th Annual Meeting of the European Society of Thoracic Surgeons, European Society of Thoracic Surgeons 
-  Abstract Reviewer46th Annual Meeting of the Society of Thoracic Surgeons, Society of Thoracic Surgeons 
-  MemberBiology Club, General Thoracic Surgery Club 
-  MemberNational Lung Review Board, United Network for Organ Sharing 
-  MemberLung Cancers Section, Faculty of 1000 
-  MemberCardiothoracic Transplant Committee. Minnesota, North Dakota, South Dakota; UNOS Region 7, LifeSource Organ Procurement Organization