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National Provider Identifier (NPI) Implementation for the Pay-To Provider (Payee)
Act
by Mar 1, 2009
Effective date
Mar 1, 2009
Identified
Jun 21, 2026
Summary
Beginning March 1, 2009, Illinois Medicaid will require National Provider Identifier (NPI) numbers instead of one-digit payee codes to designate Pay-To Providers on electronic claims (837 and DDE formats). Claims without registered Payee NPIs will be denied, though paper claims are exempt from this requirement.
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What to do
by Mar 1, 2009 · 4 steps
01Billing team must register all payee NPI information with Illinois HFS at www.myhfs.illinois.gov and update billing software to submit Payee NPIs in Loop 2010AB, NM109 for all electronic claims (837 and DDE).
02Share NPI information between payees and providers for billing purposes.
03For internet access issues, fax NPPES approval letters to 217-557-8800.
04Claims submitted electronically without registered Payee NPIs will be denied.
Original notice
National Provider Identifier (NPI) Implementation for the Pay-To Provider (Payee)
hfs.illinois.gov · Always check the source before changing claims.
Related changes
See all Illinois Medicaid - HFS changes →National Provider Identifier (NPI) ImplementationHighEffective May 23, 2007 · Provider NoticeAddendum to the 12-13-06 - NPI NoticeMediumEffective May 23, 2007 · Provider NoticeNational Provider Identifier (NPI) – Implementation for PharmaciesHighEffective Jan 2, 2008 · Provider NoticeNPI Reporting for the Pay-To Provider (Payee)HighNo effective date · Provider NoticeBrowse every Illinois Medicaid - HFS change in the policy list