NAME: Carrier/DMERC Claim Referring Physician NPI Number DESCRIPTION: The national provider identifier (NPI) number of the physician who referred the beneficiary or the physician who ordered the Part B services or durable medical equipment (DME). NPIs replaced UPINs as the standard provider identifiers beginning in 2007. The UPIN is almost never populated after 2009. SHORT NAME: RFR_NPI LONG NAME: RFR_PHYSN_NPI TYPE: CHAR LENGTH: 12 SOURCE: CWF CODE VALUES: - COMMENT: -