NAME: Carrier Line Performing Provider ID Number (PIN) DESCRIPTION: The provider identification number (PIN) of the physician/supplier (assigned by the MAC) who performed the service for this line item. SHORT NAME: PRF_PRFL LONG NAME: CARR_PRFRNG_PIN_NUM TYPE: CHAR LENGTH: 15 SOURCE: CWF CODE VALUES: - COMMENT: CMS identifies providers using the National Provider Identifier (NPI; effective May 1, 2007), which replaces legacy legacy numbers (UPINs, PINs, etc.) on the standard HIPPA claim transactions.