- 2020 - presentMemberAssociation of American Physicians 
- 2020 - presentBoard LiaisonAmerican Association for the Study of Liver Diseases 
- 2020 - presentTreasurerAmerican Association for the Study of Liver Diseases 
- 2019 - presentFellowship StatusAmerican Gastroenterological Association 
- 2019 - presentMemberMayo Clinic Research Committee  
- 2018 - presentFellowship StatusAmerican Association for the Study of Liver Diseases 
- 2017 - presentMemberNational Institute on Alcohol Abuse and Alcoholism, Advisory Council 
- 2016 - presentSteering Committee MemberAlcoholic Liver Disease SIG, American Association for the Study of Liver Diseases 
- 2016 - presentMemberAmerican Gastroenterological Association, Nominating Committee  
- 2015MemberAmerican Association for the Study of Liver Diseases, Hepatology Editor Selection Committee 
- 2014 - presentCo-DirectorAmerican Gastroenterological Association Annual Chairs Consortium 
- 2013 - 2016MemberAmerican Gastroenterological Association, Public Policy Committee 
- 2012 - 2014MemberAmerican Association for the Study of Liver Diseases/ALF Research Grants Review Committee 
- 2011 - presentMemberAmerican Society of Clinical Investigation 
- 2007 - presentDirectorOffice of Postdoctoral Affairs, Research Committee, Mayo Clinic Rochester - Executive Board 
- 2006 - presentDirectorMultidisciplinary Training Grant in Digestive Diseases, Division of Gastroenterology and Hepatology, Department of Internal Medicine 
- 2006 - presentStanding MemberNational Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health 
- 2006 - presentMemberResearch Awards Committee, American Liver Foundation 
- 2005 - 2009MemberBiomedical Sciences Subcommittee, Mayo Clinic Rochester Committees 
- 2005 - 2007Ad Hoc Grant ReviewerHPBB & Training Grants, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health 
- 2005 - presentResearch ChairResearch, Division of Gastroenterology and Hepatology, Department of Internal Medicine 
- 2005 - presentMemberCancer Cell Biology Program, Mayo Clinic Graduate School of Biomedical Sciences, Mayo Clinic College of Medicine and Science 
- 2005 - presentMemberNIH Liaison Committee, American Association for the Study of Liver Diseases 
- 2004 - presentAssociate ChairResearch, Division of Gastroenterology and Hepatology, Department of Internal Medicine 
- 2004 - presentMemberInternal Medicine Research Advisory Group, Department of Internal Medicine 
- 2003 - 2006MemberAdministrative Scheduling Director, Liver Transplantation Program, Division of Gastroenterology and Hepatology 
- 2003 - presentMemberClinician-Investigator Committee, Mayo Clinic Rochester Committees 
- 2003 - presentMemberDOM Candidate Subcommittee, Clinician-Investigator Committee, Mayo Clinic Rochester Committees 
- 2003 - presentAd Hoc Grant ReviewerNational Institute on Alcohol Abuse and Alcoholism, National Institutes of Health 
- 2002 - 2005Vice ChairMultidisciplinary Training Grant in Digestive Diseases, Division of Gastroenterology and Hepatology, Department of Internal Medicine 
- 2002 - 2003MemberInternational Education Subcommittee, Education Committee, American Association for the Study of Liver Diseases 
- 2002 - presentDirectorAdvanced Liver Disease Subspecialty Clinic, Division of Gastroenterology and Hepatology, Department of Internal Medicine 
- 2002 - presentCo-DirectorAdvanced Liver Disease Study Group, Division of Gastroenterology and Hepatology, Department of Internal Medicine 
- 2002 - presentExecutive Committee MemberMultidisciplinary Training Grant in Digestive Diseases, Division of Gastroenterology and Hepatology, Department of Internal Medicine 
- 2002 - presentMemberResearch Committee, Division of Gastroenterology and Hepatology, Department of Internal Medicine 
- 2002 - presentMemberGenomics and Proteomics Initiative, Division of Gastroenterology and Hepatology, Department of Internal Medicine 
- 2002 - presentAd Hoc Grant ReviewerNational Science Foundation 
- 2001 - 2004MemberEducation Committee, American Association for the Study of Liver Diseases 
- 2001 - presentMemberGIH Fellowship Selection Committee, Division of Gastroenterology and Hepatology, Department of Internal Medicine 
- 2000 - presentMemberTumor Biology Program, Mayo Clinic Graduate School of Biomedical Sciences, Mayo Clinic College of Medicine and Science 
- 2000 - 2005MemberVascular Wall Biology (Great America 2B), AHA Grant Peer Review Study Section 
- 2000 - presentConference CoordinatorGI Research Unit, Division of Gastroenterology and Hepatology, Department of Internal Medicine 
- 1999 - presentAd Hoc ReviewerMerit Review Program, Veteran's Administration, U.S. Department of Veterans Affairs 
- 1999 - presentMemberHepatic Circulation and Experimental Portal Hypertension, Abstract Selection Committee, American Association for the Study of Liver Diseases 
-  DirectorGenomics and Proteomics Initiative, Division of Gastroenterology and Hepatology, Department of Internal Medicine 
-  MemberMayo Clinic Committees 
-  DiplomateAmerican Board of Internal Medicine 
-  MemberAmerican Association for the Advancement of Science 
-  MemberAmerican Gastroenterological Association 
-  MemberAmerican Physiological Society 
-  MemberAmerican Society for Biochemistry and Molecular Biology 
-  MemberAmerican Society of Transplant Physicians 
-  MemberNitric Oxide Society