- 2024 - presentMemberFinance Committee, American Thyroid Association 
- 2024Chair, Executive Director Search Task ForceAmerican Thyroid Association 
- 2024HostInternational Thyroid Oncology Group 
- 2023 - presentBoard DirectorInternational Thyroid Oncology Group 
- 2023 - 2024Member, COI Subcommittee of Guidelines and Statements CommitteeAmerican Thyroid Association 
- 2021 - 2022Past-PresidentAmerican Thyroid Association 
- 2020 - 2021PresidentAmerican Thyroid Association 
- 2020 - 2021Conference Program Committee MemberAmerican Association of Clinical Endocrinologists 
- 2020 - presentCommittee Member, Education CommitteeFlorida Endocrine Association 
- 2020 - presentPhysician RepresentativeNational Comprehensive Cancer Network 
- 2019 - 2020President-ElectAmerican Thyroid Association 
- 2019 - presentCommittee Member, Education CommitteeAmerican Association of Clinical Endocrinologists 
- 2016 - presentChairEndocrinology Specialty Council, Mayo Clinic 
- 2015 - 2019SecretaryAmerican Thyroid Association 
- 2014 - 2015Secretary-electAmerican Thyroid Association 
- 2014 - 2022Committee MemberInternational Thyroid Oncology Group 
- 2014 - presentMemberMayo Clinic Specialty Council, Thyroid Cancer, Mayo Clinic Specialty Council, Mayo Clinic Clinical Practice Committee 
- 2013 - presentActive MemberEndocrinology Specialty Council, Mayo Clinic Specialty Council, Mayo Clinic Clinical Practice Committee 
- 2012 - presentMemberMayo Clinic Florida Department and Division Chairs 
- 2012 - presentMemberInternal Medicine Administrative Committee, Mayo Clinic Florida Committees 
- 2012 - 2018MemberThyroid Scientific Committee, American Association of Clinical Endocrinologists 
- 2012 - presentCommittee MemberInternational Thyroid Oncology Group 
- 2012MemberInternational Thyroid Oncology Group 
- 2011ContributorThyroid Cancer Care Collaborative 
- 2010 - 2022Board of DirectorsBoard of Directors, American Thyroid Association 
- 2010 - presentChairmanThyroid Tumor Board MCF, Mayo Clinic Florida Committees 
- 2010 - presentMemberEndocrine Malignancies DOG, Disease/Discipline Oriented Groups (DOGs), Mayo Clinic Cancer Center 
- 2010 - presentMemberThyroid Core Group, Division of Endocrinology, Diabetes, Metabolism, Nutrition, Department of Internal Medicine 
- 2008MemberATA Fellow Recruitment Task Force, American Thyroid Association 
- 2007 - 2011ChairmanVMI Research Laboratories 
- 2007ChairmanInternet and Communication Committee, American Thyroid Association 
- 2006 - 2011RepresentativeAssociation of Specialty Professors within AAIM, The Endocrine Society 
- 2006 - 2011MemberAssociation of Specialty Professors 
- 2006 - 2011MemberASP Council, Association of Specialty Professors 
- 2006 - 2007MemberWebsite Advisory Group, American Thyroid Association 
- 2003 - 2005ChairmanPublic Health Care Committee, American Thyroid Association 
- 2002 - 2011Board MemberVMI Research Laboratories 
- 2002 - 2004PresidentTriService Endocrine Society 
- 2002 - 2003Vice ChairPublic Health Care Committee, American Thyroid Association 
- 2002 - 2003Acting ChairPublic Health Care Committee, American Thyroid Association 
- 2000 - 2010Founding MemberUnited States Military Cancer Institute 
- 2000 - 2002Secretary/TreasurerTriService Endocrine Society 
- 2000 - presentFellowAmerican College of Physicians-American Society of Internal Medicine 
- 1999MemberPublic Health Care Committee, American Thyroid Association 
- 1998 - presentFellowAmerican Association of Clinical Endocrinologists 
- 1998 - 2002CoordinatorArmy American College of Physicians 
- 1998 - presentMemberAmerican Thyroid Association 
- 1993 - presentMemberAmerican College of Physicians 
- 1993 - presentMemberAmerican Association of Clinical Endocrinologists 
- 1993 - presentMemberThe Endocrine Society 
- 1992 - presentMemberTriService Endocrine Society 
- 1990 - 1993Associate MemberAmerican College of Physicians