On May 30, 2007 the Centers for Medicare and Medicaid Services published its NPI Data Dissemination Notice. The notice asserts who will have access to physicians’ NPI numbers as well as other information from their NPI application. Much of the information garnered from the NPI application will be available online to the public. CMS is giving physicians 30 days to remove any “optional” data from the initially supplied NPI application. Changes to NPI applications can be done online at https://NPPES.cms.hhs.gov or by calling the NPI enumerator, NPPES, at (800) 4665-3203 to request a change of information form.