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Back  RFI # 472: Require NPI & TaxID in 835

Formal vs. Informal Help Informal Formal


Jonathan Hale


The 837 IGs are quite clear that when the NPI goes in the billing provider NM1 the TaxID must still be sent in a REF segment. The 835 IG appears to leave some room for discretion by payers to send or omit a REF segment containing the TaxID when the payees' NPI is in the N1 segment.

Submitter Assigned Keywords

NPI 835 TaxID


It is the intent of the authors that if the Tax ID is necessary for tax purposes it must be sent as the secondary payee ID when the N1 primary ID contains the NPI. In the case of the ERA, since this transaction is reporting payment, the TIN would be necessary for identification of the TIN that is being paid.
Submission 10/19/2006
Status Date 1/10/2007
Status F - Final
Primary References
Document 004010X091
Set ID835
Segment Position120
Segment IDREF