MedicaidAdministrativeMedium impact
Prescriber National Provider Identifier (NPI)
Illinois Medicaid - HFS·IL·Provider Notice
Effective date
Jul 1, 2008
We identified it
Jun 21, 2026
Summary
Beginning July 1, 2008, Illinois Department of Healthcare and Family Services requires pharmacies to include the prescriber's National Provider Identifier (NPI) in the Prescriber ID field (411-DB) for all pharmacy claims submissions. This policy is necessary for HIPAA compliance and affects how prescriptions are processed for state Medicaid programs.
Action Required
By July 1, 2008: Healthcare providers must ensure pharmacies have their current NPI numbers for prescription claims. Verify that all prescriptions include provider NPI in the Prescriber ID field (411-DB). Contact pharmacies to provide updated NPI information if not already on file. Failure to include NPI may result in pharmacy claim rejections.