NASP, a group of eleven periodontal practices, many of whom have been together for more than twenty years, is a professional organization whose focus is primarily non-clinical. The Core Group represents some of the most successful and highly productive periodontal practices in the US.  The doctors, if not always “visible” in the conventional “lecture circuit” sense, as defined by the American Academy of Periodontics, are none the less extraordinary models of excellence. This formidable group of clinicians comes together to explore how to distinguish their practices in the areas of marketing, management, practice development, growth of referrals, and staff issues.