- 2017 - 2019
Education CommitteeInternational Society for Diseases of the Esophagus
- 2014 - 2016
PresidentInternational Society for Diseases of the Esophagus
- 2014 - present
Past PresidentAmerican Society for Gastrointestinal Endoscopy
- 2014 - 2017
International MemberChinese Society of Gastroenterology
- 2014 - 2017
Committee MemberNominations Committee, American Society for Gastrointestinal Endoscopy
- 2014 - 2017
Committee MemberAwards Committee, American Society for Gastrointestinal Endoscopy
- 2013 - 2014
PresidentAmerican Society for Gastrointestinal Endoscopy
- 2013 - 2018
Executive Committee MemberInternational Society for Diseases of the Esophagus
- 2013 - 2014
Fellow MemberAmerican College of Physicians
- 2013 - 2014
President-ElectInternational Society for Diseases of the Esophagus
- 2013 - present
Co-DirectorCancer Center GI Program
- 2013 - present
MemberMCCC Internal Scientific Advisory Committee
- 2013 - present
Member3-Site GI DOG/Program Leaders, Cancer Center GI Program
- 2012 - 2014
LecturerChinese College of Gastroenterology
- 2012 - 2013
President-ElectAmerican Society for Gastrointestinal Endoscopy
- 2009 - 2012
SecretaryAmerican Society for Gastrointestinal Endoscopy
- 2009 - present
Committee MemberAnnual Scientific Committee, American Society for Gastrointestinal Endoscopy
- 2008 - 2015
Executive Committee MemberAmerican Society for Gastrointestinal Endoscopy
- 2008 - 2012
MemberEducation Committee, American College of Gastroenterology
- 2008
Secretary-electAmerican Society for Gastrointestinal Endoscopy
- 2007 - 2013
Committee ChairStandard and Guidelines Committee, World Endoscopy Organization
- 2007 - present
Committee ChairWorld Endoscopy Organization
- 2007 - present
Fellow MemberFellow American College of Gastroenterology, American College of Gastroenterology
- 2007 - present
Fellow MemberAmerican College of Gastroenterology
- 2007 - present
Fellow MemberAmerican Gastroenterological Association
- 2007 - present
Fellow MemberAmerican Society for Gastrointestinal Endoscopy
- 2005 - present
DirectorAdvanced Endoscopy Group, Division of Gastroenterology and Hepatology, Department of Internal Medicine
- 2005 - present
MemberGIH executive / leadership committee, Division of Gastroenterology and Hepatology, Department of Internal Medicine
- 2005 - present
MemberGIH Leadership team, Division of Gastroenterology and Hepatology, Department of Internal Medicine
- 2004 - 2007
WebmasterWebmaster, American Society for Gastrointestinal Endoscopy
- 2004 - 2006
Vice ChairAbstract Review Section Upper GI tract, American Gastroenterological Association
- 2004
Vice ChairAbstract Review Section Esophagus, American Gastroenterological Association
- 2003 - 2004
Committee MemberTeaching Project Barrett's Esophagus, American Gastroenterological Association
- 2003
Panel MemberConsenses Panel Barrett's Esophagus, American Gastroenterological Association
- 2003 - present
Advisory Board MemberNational Cancer Institute CURE
- 2002 - 2006
Board MemberBoard of Directors, International Photodynamic Association
- 2002 - 2004
Committee MemberPublications Committee, American Society for Gastrointestinal Endoscopy
- 2002 - 2004
ChairpersonWebsite Editorial Board, American Society for Gastrointestinal Endoscopy
- 2002 - 2003
MemberFee Committee, Mayo Clinic Rochester Committees
- 2002 - present
MemberInternational Society for Diseases of the Esophagus
- 2002 - present
Board MemberAmerican Society for Gastrointestinal Endoscopy
- 2001 - present
DirectorBarrett's Esophagus Unit, Division of Gastroenterology and Hepatology, Department of Internal Medicine
- 2000 - present
MemberInternational Society for Optical Engineering
- 1998 - 2005
MemberMayo Integrated Clinical Systems (MICS), Department of Foundation Integrated Services (FIS)
- 1998 - 2003
ChairDepartment of Education Administration
- 1998 - 2003
MemberDocument Oversight Group, Mayo Integrated Clinical Systems (MICS), Department of Foundation Integrated Services (FIS)
- 1998 - 2001
MemberClinical Workspace Oversight Group, Mayo Clinic Committees
- 1998 - 1999
MemberMayo Informantics Committee, Mayo Clinic Committees
- 1998 - present
DirectorComplex Endoscopy Unit, Division of Gastroenterology and Hepatology, Department of Internal Medicine
- 1998 - present
ChairMayo Electronic Reports Group, Mayo Foundation for Medical Education and Research
- 1998 - present
MemberDevelopmental Endoscopy Unit, Division of Gastroenterology and Hepatology, Department of Internal Medicine
- 1998 - present
MemberComplex Endoscopy Unit, Division of Gastroenterology and Hepatology, Department of Internal Medicine
- 1998 - present
MemberMayo Electronic Reports Group, Mayo Foundation for Medical Education and Research
- 1998 - present
MemberMayo Foundation for Medical Education and Research
- 1996
ChairDigestive Disease Week, Poster Grand Rounds, American Society for Gastrointestinal Endoscopy
- 1996
MemberDigestive Disease Week, Poster Grand Rounds, American Society for Gastrointestinal Endoscopy
- 1996 - 1997
Co-EditorHomepage, American Society for Gastrointestinal Endoscopy
- 1996 - 1997
MemberHomepage, American Society for Gastrointestinal Endoscopy
- 1996 - present
MemberMayo Clinic Cancer Center
- 1996 - present
MemberEducation and Technology Subcommittee, American Gastroenterological Association
- 1995 - 2001
MemberInformatics Committee, American Society for Gastrointestinal Endoscopy
- 1995 - 1997
ChairInternet Task Force, American Society for Gastrointestinal Endoscopy
- 1995 - 1997
MemberInternet Task Force, American Society for Gastrointestinal Endoscopy
- 1995 - 1996
Co-DirectorGastroenterology Section, Mayo Medical School, Mayo Clinic College of Medicine and Science
- 1995 - present
MemberAmerican College of Gastroenterology
- 1995 - present
MemberAmerican Gastroenterological Association
- 1994 - present
MemberResearch Committee, Division of Gastroenterology and Hepatology, Department of Internal Medicine
- 1993 - 1995
MemberOrgan Systems Curriculum Committee, Mayo Medical School, Mayo Clinic College of Medicine and Science
- 1993 - present
DirectorLaser Photodynamics Laboratory, Division of Gastroenterology and Hepatology, Department of Internal Medicine
- 1993 - present
MemberLaser Photodynamics Laboratory, Division of Gastroenterology and Hepatology, Department of Internal Medicine
- 1992 - 1994
MemberMayo Microcomputer Committee, Mayo Clinic Committees
- 1992 - present
MemberEsophageal Interest Group, Division of Gastroenterology and Hepatology, Department of Internal Medicine
- 1991
Co-ChairGastroenterology Update Course, Division of Gastroenterology and Hepatology, Department of Internal Medicine
- 1991
MemberGastroenterology Update Course, Division of Gastroenterology and Hepatology, Department of Internal Medicine
- 1990 - 1994
MemberYear I Committee, Mayo Medical School, Mayo Clinic College of Medicine and Science
- 1990 - 1992
MemberGI Subspecialty Training Committee, Division of Gastroenterology and Hepatology, Department of Internal Medicine
- 1990 - 1992
MemberGraduate Education Committee, Department of Internal Medicine
- 1990 - 1991
MemberAdministrative Committee, Division of Gastroenterology and Hepatology, Department of Internal Medicine
- 1989 - 1994
ChairGastroenterology Section, Mayo Medical School, Mayo Clinic College of Medicine and Science
- 1989 - 1994
MemberGastroenterology Section, Mayo Medical School, Mayo Clinic College of Medicine and Science
- 1989 - 1992
MemberSubcommittee on Undergraduate Education, Department of Internal Medicine
- 1989 - 1991
ChairEducation Committee, Division of Gastroenterology and Hepatology, Department of Internal Medicine
- 1989 - 1990
MemberResearch Committee, Division of Gastroenterology and Hepatology, Department of Internal Medicine
- 1989 - present
MemberMayo Medical School, Mayo Clinic College of Medicine and Science, Department of Education Administration
- 1989 - present
MemberDepartment of Education Administration
- 1988 - present
MemberGI Bleeding Team and Emergency Endoscopy, Division of Gastroenterology and Hepatology, Department of Internal Medicine
- 1988 - present
MemberLaser Treatment Group, Division of Gastroenterology and Hepatology, Department of Internal Medicine
- 1988 - present
MemberEndoscopy Group, Division of Gastroenterology and Hepatology, Department of Internal Medicine
- 1987 - 1997
MemberEducation Committee, Division of Gastroenterology and Hepatology, Department of Internal Medicine
- 1987 - present
MemberDivision of Gastroenterology and Hepatology, Department of Internal Medicine
- 1987 - present
MemberDepartment of Internal Medicine
-
MemberAmerican College of Physicians
-
MemberAmerican Association for the Study of Liver Diseases
-
MemberInternational Photodynamic Association
-
MemberSigma Xi, The Scientific Research Society
-
MemberAmerican Association for the Advancement of Science