NPI Final Ruling View Fullscreen NPI Final Ruling – Download NPI Final Ruling – Download [Optimized] Related posts: National Provider Identifier Final Rule Overview [NPI] Medicare Fee for Service (FFS) Implementation of the National ProviderIdentifier (NPI) Modification of National Provider Identifier (NPI) Editing Requirements in CR4023 and an Attachment to CR4320 NPI – Who, What, When, Why & How