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NPI Reporting for the Pay-To Provider (Payee)
Act
immediately
Effective date
Not stated in the notice
Identified
Jun 21, 2026
Summary
Illinois Medicaid (HFS) will soon require providers to report NPI numbers for pay-to providers (payees) instead of the current 1-digit payee codes. Payees must obtain unique NPIs and share them with billing providers to avoid claim denials and payment issues.
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What to do
immediately · 4 steps
01All pay-to providers (payees) must obtain unique NPI numbers by visiting https://nppes.cms.hhs.gov/.
02Payees must share their NPI information with billing providers.
03Billing teams should start reporting NPI information for each designated payee to HFS via www.myhfs.illinois.gov or fax to 217-557-8800.
04Continue using 1-digit payee codes until further notification.
If missed: Failure to comply will result in claim denials, lack of payment, or inappropriate payments to wrong payees.
Original notice
NPI Reporting for the Pay-To Provider (Payee)
hfs.illinois.gov · Always check the source before changing claims.
Related changes
See all Illinois Medicaid - HFS changes →Addendum to the 12-13-06 - NPI NoticeMediumEffective May 23, 2007 · Provider NoticeNational Provider Identifier (NPI) Implementation for the Pay-To Provider (Payee)HighEffective Mar 1, 2009 · Provider NoticeElimination of the One-Digit Payee Code for Electronic Claim SubmittalsHighEffective Jul 1, 2009 · Provider NoticeBrowse every Illinois Medicaid - HFS change in the policy list