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The national provider identifier (NPI) number assigned to uniquely identify the referring physician.
Source: NCH
*The short SAS name is RFR_NPI in the carrier and DME files.
NPIs replaced UPINs as the standard provider identifiers beginning in 2007. The UPIN is almost never populated after 2009.
*The short SAS name is RFR_NPI in the carrier and DME files.
NPIs replaced UPINs as the standard provider identifiers beginning in 2007. The UPIN is almost never populated after 2009.