The National Council for Prescription Drug Programs (NCPDP) is a CMS certified Electronic File Interchange for obtaining and maintaining National Provider Identifiers (NPIs) on behalf of authorizing pharmacies.
The requirements for EFIOs can be viewed at
http://www.cms.hhs.gov/NationalProvIdentStand/07_efi.asp#TopOfPage. NCPDP is urging pharmacies to utilize the services of NCPDP in obtaining their NPI so that providers will experience minimal payment disruption in transitioning from the NCPDP Provider ID to the NPI.