- 2018 - 2022LeadMayo Clinic 
- 2017 - 2023Minorities in Cancer Research CouncilAmerican Association for Cancer Research 
- 2017 - 2024MemberMayo Clinic 
- 2013 - presentBoard MemberMedical Advisory Board, Hospice Northeast 
- 2013 - 2021ChairMayo Clinic Cancer Center 
- 2011 - 2013PresidentFlorida Society of Clinical Oncology 
- 2006 - 2009MemberExecutive Board - Mayo Clinic Jacksonville, Mayo Clinic Florida Committees 
- 2006MemberEducation Strategic Coordinating Group, Mayo Clinic Education Committee, Mayo Clinic Committees 
- 2006MemberMemo of Understanding Indian Health Service Coordinating Group, Mayo Clinic Committees 
- 2005 - 2018Associate DirectorMayo Medical School, Mayo Clinic College of Medicine and Science, Department of Education Administration 
- 2005 - 2006MemberCancer Care Disparities Task Force, Mayo Clinic Task Forces/Work Groups 
- 2004 - 2007MemberBoard of Directors, Florida Society of Clinical Oncology 
- 2004 - presentExecutive Board MemberFlorida Society of Clinical Oncology 
- 2004 - presentChairPrograms Committee, Florida Society of Clinical Oncology 
- 2003 - 2022ChairMayo Clinic Florida Committees 
- 2003 - 2006Vice ChairPractice Performance Committee, Mayo Clinic Florida Committees 
- 2003 - 2006MemberPractice Performance Committee, Mayo Clinic Florida Committees 
- 2003 - 2005ChairStrategic Planning Committee, Mayo Clinic Florida Committees 
- 2003 - 2005MemberStrategic Planning Committee, Mayo Clinic Florida Committees 
- 2002 - 2012MemberDiversity Advisory Group, Mayo Clinic Committees 
- 2001 - 2008ChairDiversity Committee, Mayo Clinic Florida Committees 
- 2001 - 2004MemberDevelopment Committee, Mayo Clinic Florida Committees 
- 2001MemberMayo Alumni Advisory Committee, Mayo Clinic Committees 
- 2001MemberEndowed Professorship Selection Committee, Mayo Clinic Committees 
- 2001 - presentChairSubcommittee, Mayo Clinic, Mayo Medical School, Mayo Clinic College of Medicine and Science 
- 2000 - 2010MemberDiversity Recruitment & Retention Task Force, Mayo Clinic Committees 
- 2000 - 2005MemberBoard of Governors, Mayo Clinic Florida Committees 
- 2000 - 2005MemberInternal Medicine Administrative Committee, Mayo Clinic Florida Committees 
- 2000 - 2004MemberFoundation Marketing Resource Group, Mayo Clinic Committees 
- 2000 - 2001MemberDiversity Strategic Planning Subcommittee, Mayo Clinic Committees 
- 2000MemberLiaison Committee, Mayo Group Practices 
- 2000American College of Physicians 
- 2000 - presentMemberEducation Committee, Mayo Medical School, Mayo Clinic College of Medicine and Science 
- 1996 - 2005FounderHematology/Oncology Fellowship Program, Mayo School of Graduate Medical Education, Mayo Clinic College of Medicine and Science 
- 1995 - 2008MemberCancer Committee, St. Luke's Hospital 
- 1995 - 2005ChairHematology/Oncology Clinical Practice Team, St. Luke's Hospital 
- 1995 - 1999MemberInternational Education Committee, Mayo Clinic Florida Committees 
- 1995 - 1999MemberExecutive Committee Aequanimita, Physician Society of the Earl B. Hadlow Center for Caring, Hospice Northeast 
- 1995 - presentDirectorUndergraduate Medical Education in Jacksonville, Mayo Medical School, Mayo Clinic College of Medicine and Science 
- 1995 - presentMemberMayo Medical School, Mayo Clinic College of Medicine and Science, Department of Education Administration 
- 1995 - presentActive MemberAmerican College of Physicians 
- 1994 - 2002Associate DirectorInternal Medicine Residency Program, Mayo School of Graduate Medical Education, Mayo Clinic College of Medicine and Science 
- 1994 - 1999MemberPDQ External Advisory Board, National Cancer Institute, National Institutes of Health 
- 1994 - presentMemberEducation Committee, Mayo Clinic Florida Committees 
- 1993 - 2000MemberDevelopment Liaison Committee, Mayo Clinic Florida Committees 
- 1992 - 1998MemberMedical Advisory Board, Hospice Northeast 
- 1990 - 1991ChairBone Marrow Transplant Task Force, Mayo Clinic Florida Committees 
- 1989 - 2008ChairBlood Utilization Committee, St. Luke's Hospital 
- 1989 - 2008MemberCancer Committee, St. Luke's Hospital 
- 1989 - 1995ChairCancer Committee, St. Luke's Hospital 
- 1988 - 1992MemberResearch Committee, Mayo Clinic Florida Committees 
- 1988 - 1991ChairQuality Assurance Committee, Mayo Clinic Florida Committees 
- 1986 - 1989MemberRadiation Safety Committee, Mayo Clinic Florida Committees 
-  ChairDiversity Recruitment & Retention Task Force, Mayo Clinic Committees 
-  MemberMayo Foundation for Medical Education and Research 
-  MemberAmerican Association for the Advancement of Science 
-  MemberAmerican Medical Association 
-  MemberAmerican Society of Clinical Oncology 
-  MemberAmerican Society of Hematology 
-  MemberDuval County Medical Society