- 2013 - 2016
MemberMayo Clinic Office of Wellness
- 2007 - 2016
Executive Committee MemberDan Abraham Healthy Living Center
- 2007 - 2016
ChairPreventive Services Work Group, Mayo Clinic Task Forces/Work Groups
- 2005 - 2016
MemberResearch Committee, Division of Preventive, Occupational and Aerospace Medicine, Department of Internal Medicine
- 2005 - 2013
ChairDivision of Preventive, Occupational and Aerospace Medicine, Department of Internal Medicine
- 2004 - 2008
ChairHealth Promotion Committee, Mayo Clinic Rochester Committees
- 2004 - 2005
MemberStep 3 Item Review Committee, National Board of Medical Examiners
- 2003 - 2004
LeaderTechnology Assessment Report on Dietary Treatments for Weight Loss, Technology Assessment Committee, Institute for Clinical Systems Integration
- 2003 - 2004
PresidentAmerican Board of Physician Nutrition Specialists
- 2002
LeaderTechnology Assessment Report on Pharmacological Approaches to Weight Loss, Technology Assessment Committee, Institute for Clinical Systems Integration
- 2001 - 2005
MemberAmerican Board of Physician Nutrition Specialists
- 2001 - 2003
Vice PresidentAmerican Board of Physician Nutrition Specialists
- 2000 - 2001
MemberCurriculum Development Task Force, Intersociety Professional Nutrition Education Consortium
- 2000 - present
FellowThe Obesity Society
- 2000 - present
MemberThe Obesity Society
- 1999 - 2003
MemberStep 3 Test Material Development Committee, National Board of Medical Examiners
- 1999 - 2002
MemberMarketing Committee, Mayo Clinic Rochester Committees
- 1999 - 2001
Group LeaderPreventive Counseling and Education Guideline Work Group, Institute for Clinical Systems Integration
- 1999 - 2001
MemberTask Force on Test Question Writing, Mayo Clinic Rochester Task Forces
- 1999 - 2000
TreasurerAmerican Board of Nutrition
- 1998 - 2000
MemberPublic Affairs Committee, North American Association for the Study of Obesity
- 1998 - 1999
MemberAssociation of Teachers of Preventive Medicine
- 1997 - 1998
MemberStep 3 Modeling Task Force, National Board of Medical Examiners
- 1997 - present
MemberOutpatient Nutrition Core Group, Division of Endocrinology, Diabetes, Metabolism, Nutrition, Department of Internal Medicine
- 1997 - present
FellowAmerican College of Physicians
- 1997 - present
MemberAmerican College of Physicians
- 1996 - 1998
MemberResearch Committee, Department of Internal Medicine
- 1995 - 2007
Medical DirectorDan Abraham Healthy Living Center
- 1995 - 2001
DirectorAmerican Board of Nutrition
- 1994 - 2012
MemberExecutive Health Program Committee, Division of Preventive, Occupational and Aerospace Medicine, Department of Internal Medicine
- 1994 - 2005
ChairExecutive Health Program Committee, Division of Preventive, Occupational and Aerospace Medicine, Department of Internal Medicine
- 1994 - 2001
MemberResidency Advisory Committee, Division of Preventive, Occupational and Aerospace Medicine, Department of Internal Medicine
- 1994
ReviewerReview of Nutrition Content on the National Boards Step III Examination, National Board of Medical Examiners
- 1993 - 2018
MemberHospital Nutrition Core Group, Division of Endocrinology, Diabetes, Metabolism, Nutrition, Department of Internal Medicine
- 1993 - 2004
MemberLipid Core Group, Division of Endocrinology, Diabetes, Metabolism, Nutrition, Department of Internal Medicine
- 1993 - 2002
MemberScientific Foundation of Medical Practice Curriculum Committee, Mayo Medical School, Mayo Clinic College of Medicine and Science
- 1993 - 1998
Faculty AdvisorFellows Journal Club, Division of Preventive, Occupational and Aerospace Medicine, Department of Internal Medicine
- 1992 - 2005
MemberEducation Committee, Division of Preventive, Occupational and Aerospace Medicine, Department of Internal Medicine
- 1992 - 1995
MemberCommittee on Medical/Dental School and Residency Nutrition Education and Subspecialty Training, American Society for Clinical Nutrition
- 1991 - present
MemberAmerican Society for Nutrition
- 1990 - present
MemberAmerican Society for Parenteral and Enteral Nutrition
- 1981 - 2010
MemberAmerican Medical Association