Medicare AdvantageAdministrativeMedium impact
Important Updates on the Medicare Medicaid Alignment Initiative (MMAI) transition to Dual Eligible Special Needs Plan (D-SNP)
Illinois Medicaid - HFS·IL·Provider Notice
Effective date
Jan 20, 2026
We identified it
Jun 20, 2026
Summary
Illinois has updated their enrollment verification systems for the Medicare-Medicaid Alignment Initiative (MMAI) transition to Dual Eligible Special Needs Plans (D-SNP). The Department's MEDI and 270/271 transaction files now contain accurate FIDE SNP enrollment information with specific contract numbers and health plan names for verification.
Action Required
Immediately: Billing team must update patient eligibility verification processes to use the updated MEDI system and 270/271 transactions for accurate FIDE SNP enrollment information. When verifying dual eligible patients, reference the specific contract numbers and health plan names provided (Aetna Better Health SNP H9771001, Humana Health Plan Inc SNP H4329001, Molina Healthcare regional contracts H3093001-H3093005, Meridian Health Plan Inc SNP H6971001). For enrollment verification questions, contact HFS.DSNPInquiries@Illinois.gov.