2013-2014 American Society of Dermatopathology, President-elect, Executive Committee, Board of Directors
2009-2013 American Society of Dermatopathology, Secretary-Treasurer, Executive Committee, Board of Directors
2008 American Society of Dermatopathology, Secretary-Treasurer elect, Executive Committee, Board of Directors (through October 2009)*
2007 American Medical Association
2007 Truthful Testimony, Inc (Board of Directors)
2003 Coalition and Center for Ethical Medical Testimony (Board of Directors) (2005 Secretary-Treasurer)
1998 Dermatology Foundation, Leaders Society (ended 2005)
1996 American Pathology Foundation
1991 Missouri Society of Pathologists
1989 Dermatopathology Club of San Antonio (Founding Member)
1989 Texas Medical Foundation
1988 American Cancer Society
1988 International Society of Dermatology
1988 Missouri Medical Society
1988 San Antonio Society of Pathologists
1988 St. Louis Metropolitan Medical Society*
1982 American Society of Clinical Pathologists