Alan Viars, founder and president of Videntity, is on sabbatical from Videntity until Spring 2015 during his appointment as an HHS External Entrepreneur at the Centers for Medicare and Medicaid Services (CMS). He is working on an open-source redesign and modernization of the National Plan and Provider Enumeration System (NPPES). NPPES is best known as the system that issues National Provider Identifiers (NPIs). More information about this effort cat be found at