- 2003 - 2006MemberBoard of Directors, American Academy of Sleep Medicine 
- 2003 - presentDirectorFellowship Training Program, Sleep Disorders Center, Department of Neurology 
- 2003 - presentCo-DirectorSleep Disorders Center, Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine 
- 2003 - presentMemberExecutive Committee, Sleep Disorders Center, Division of Pulmonary and Critical Care Medicine 
- 2003 - presentMemberExecutive Committee, Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine 
- 2002 - presentMemberAcademic Appointments and Promotions Subcommittee, Mayo Clinic School of Health-Related Sciences, Mayo Clinic College of Medicine and Science 
- 2001 - 2002MemberSearch Committee for Editor of the Journal Sleep, American Academy of Sleep Medicine 
- 2001 - presentFellowAmerican Academy of Neurology 
- 2001 - presentElected Active MemberAmerican Neurological Association 
- 2001 - presentMemberAmerican Neurological Association 
- 2001 - presentMemberTask Force on Restless Legs Syndrome, American Academy of Sleep Medicine 
- 2001 - presentMemberWorld Federation of Neurology 
- 2001 - presentMemberSleep Research Group, World Federation of Neurology 
- 2000 - 2003PresidentAmerican Board of Sleep Medicine 
- 2000MemberLong-Range Planning Committee, Sleep Disorders Center, Division of Pulmonary and Critical Care Medicine 
- 1999 - 2000President-ElectAmerican Board of Sleep Medicine 
- 1999 - presentClinical DirectorNeurophysiology, Mayo Medical School, Mayo Clinic College of Medicine and Science 
- 1998 - 2003MemberSleep Science Award Subcommittee, American Academy of Neurology 
- 1998 - 2001MemberEducation Committee, Mayo Clinic School of Health-Related Sciences, Mayo Clinic College of Medicine and Science 
- 1998 - presentMemberRestless Legs Syndrome Foundation 
- 1998 - presentMemberInternational Restless Legs Syndrome Study Group 
- 1998 - presentMemberMedical Advisory Board, Restless Legs Syndrome Foundation 
- 1997 - 2000ChairCredentialing Committee, American Board of Sleep Medicine 
- 1997 - 2000MemberCredentialing Committee, American Board of Sleep Medicine 
- 1997 - 1999MemberTask Force on Restless Legs Syndrome, American Academy of Sleep Medicine 
- 1997 - 1998Vice Chair for PracticeDepartment of Neurology 
- 1996MemberNeuro Notes Express Team, Department of Neurology 
- 1996 - presentMemberBoard of Directors, American Board of Sleep Medicine 
- 1995 - 1998MemberPractice Committee, Department of Neurology 
- 1995 - 1996MemberAppointment Center CI Team, Department of Neurology 
- 1994 - 1997Conference DirectorDepartment of Neurology, Mayo Graduate School of Medicine, Mayo Clinic College of Medicine and Science 
- 1994 - 1995MemberLong-Range Planning Committee, Sleep Disorders Center, Division of Pulmonary and Critical Care Medicine 
- 1994 - presentMemberSleep Disorders Center, Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine 
- 1993 - 1995Clinical DirectorNeurophysiology, Mayo Medical School, Mayo Clinic College of Medicine and Science 
- 1993 - presentMedical DirectorClinical Neurophysiology Technology Program, Mayo Clinic School of Health-Related Sciences, Mayo Clinic College of Medicine and Science 
- 1993 - presentMemberMayo Clinic School of Health-Related Sciences, Mayo Clinic College of Medicine and Science, Department of Education Administration 
- 1993 - presentMemberClinical Neurophysiology Technology Program, Mayo Clinic School of Health-Related Sciences, Mayo Clinic College of Medicine and Science 
- 1993 - presentMemberCurriculum Committee, Department of Neurology 
- 1993 - presentMemberExecutive Committee, Division of Clinical Neurophysiology, Department of Neurology 
- 1993 - presentMemberDivision of Clinical Neurophysiology, Department of Neurology 
- 1993 - presentFellowAmerican Academy of Sleep Medicine 
- 1993 - presentMemberAmerican Board of Sleep Medicine 
- 1993 - presentMemberPart I Examination Committee, American Board of Sleep Medicine 
- 1992 - 2002MemberAmerican Association of Neuromuscular and Electrodiagnostic Medicine 
- 1992 - 1998Appointment Office CoordinatorDepartment of Neurology 
- 1992 - 1994MemberQuality Assurance Subcommittee, Department of Neurology 
- 1991 - presentMemberDepartment of Neurology 
- 1991 - presentMemberAmerican Academy of Sleep Medicine 
- 1991 - presentMemberAmerican Medical Association 
- 1991 - presentMemberMinnesota Medical Association 
- 1986 - presentMemberAmerican Academy of Neurology 
-  MemberDepartment of Education Administration