- 2017 - presentSite InvestigatorNational Cancer Institute 
- 2015 - presentTrack LeaderAmerican Society for Clinical Oncology 
- 2013 - 2015Scientific Program Committee MemberAmerican Society of Clinical Oncology 
- 2013 - presentMemberAmerican Association for Cancer Research 
- 2012 - presentMemberClinician Investigator Committee, Graduate Medical Education Committee, Mayo School of Graduate Medical Education 
- 2012 - presentMemberClinician Investigator Committee 
- 2011 - presentTeam MemberStand Up to Cancer 
- 2011 - presentChairpersonMidwest Melanoma Partnership 
- 2011 - presentChairperson3-site Melanoma DOG Committee 
- 2009 - 2015MemberNational Cancer Institute 
- 2009 - presentStudy Section ReviewerNational Institutes of Health 
- 2008 - 2011Task Force MemberNational Cancer Institute, National Institutes of Health 
- 2008 - 2010Workgroup MemberNational Cancer Institute, National Institutes of Health 
- 2007 - presentMemberInternational Society for Biological Therapy of Cancer 
- 2007 - presentExtramural ConsultantNational Cancer Institute, National Institutes of Health 
- 2006 - presentAdvisory Council MemberMayo Clinic SPORE in Pancreatic Cancer, Mayo Clinic Cancer Center 
- 2006 - presentFacultyTraining Grant titled: Mayo Cancer Immunology and Immunotherapy Research Training Program Plan 
- 2005 - presentScientific AdvisorMayo Clinic SPORE in Pancreatic Cancer, Mayo Clinic Cancer Center 
- 2005 - presentFacultyTraining Grant titled: Training Grant in Allergic Diseases 
- 2002 - presentChairMelanoma Clinic, Division of Medical Oncology, Department of Oncology 
- 2000 - 2011ChairMelanoma Working Group, North Central Cancer Treatment Group 
- 2000 - 2009MemberMelanoma Vaccine Subcommittee, Melanoma Committee, Eastern Cooperative Oncology Group 
- 2000 - 2009MemberLudwig Institute for Cancer Research, McGill University 
- 2000 - 2003MemberHematology Education Committee, Division of Hematology, Department of Internal Medicine 
- 1999 - 2011MemberNorth Central Cancer Treatment Group 
- 1999 - 2006MemberResearch Committee, Division of Hematology, Department of Internal Medicine 
- 1999 - 2005Advisory Board MemberOffice of Intellectual Property (formerly Mayo Medical Ventures) 
- 1999 - presentMemberImmunotherapy group, Mayo Clinic Cancer Center - Rochester, Mayo Clinic Cancer Center 
- 1999 - presentMemberNovel Therapeutics Committee, North Central Cancer Treatment Group 
- 1999 - presentMemberEastern Cooperative Oncology Group 
- 1999 - presentMemberMelanoma Committee, Eastern Cooperative Oncology Group 
- 1998 - 2011ChairMelanoma Study Group, Mayo Clinic Cancer Center - Rochester, Mayo Clinic Cancer Center 
- 1998 - 2011ChairMelanoma Study Group, MCCC, Mayo Clinic Cancer Center 
- 1998 - 1999Education ChairMayo Fellows Association, Mayo School of Graduate Medical Education, Mayo Clinic College of Medicine and Science 
- 1998 - present3-site Melanoma DOG Committee 
- 1997 - 1999MemberGoverning Council, Mayo Fellows Association, Mayo School of Graduate Medical Education 
- 1997 - presentMemberAmerican Society of Clinical Oncology 
- 1997 - presentMemberAmerican Society of Hematology 
- 1996 - presentMemberMayo Clinic Alumni Association, Mayo Clinic College of Medicine and Science, Department of Education Administration 
- 1996 - presentMemberMayo Clinic Alumni Association, Mayo Clinic College of Medicine and Science, Department of Education Administration 
- 1993 - 1999MemberAmerican Society for Clinical Research 
- 1993 - presentMemberAmerican Medical Association 
- 1993 - presentMemberAmerican College of Physicians 
- 1993 - presentMemberZumbro Valley Medical Society, Minnesota Medical Association 
- 1993 - presentMemberMinnesota Medical Association 
- 1993 - presentMemberAlumni Association, Medical College of Pennsylvania 
- 1990 - 1998MemberInternational Society for Metastases Research 
- 1990 - 1994MemberAmerican Association for Cancer Research 
- 1988 - 1994MemberInternational Society for Interferon and Cytokine Research 
- 1988 - 1992MemberAmerican Association of Immunologists 
-  MemberDepartment of Education Administration 
-  MemberMayo Foundation for Medical Education and Research