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Illinois Medicaid exclusion list

Illinois HFS-OIG Provider Sanctions List · in the RosterProof dataset · as of 2026-10-29

Illinois publishes its Medicaid exclusion list as a JSON feed; the agency updates it monthly. RosterProof loads it every week into the same schema as the federal OIG LEIE, SAM.gov and 41 other state lists, resolves names to NPIs where the national registry confirms them, and keeps every change. The official list is the record of truth: Illinois HFS-OIG Provider Sanctions List.

3,245
active exclusion records
2,690
individuals
558
organizations
912
NPPES-verified NPIs
67.4%
of active records not on the federal LEIE
329
also excluded in another jurisdiction

Counts are from the published RosterProof dataset, refreshed weekly; the page re-reads them on load. Format: JSON · cadence: monthly · last change RosterProof observed: 2026-10-19.

What the federal gap means in Illinois

Of the 3,245 active records on the Illinois list, 67.4% do not appear on the federal OIG LEIE. A program that screens only the federal lists, as 42 CFR 455.436 requires at minimum, never sees those providers. Under ACA §6501, an exclusion or for-cause termination in one state's Medicaid program is grounds for termination in every other state, so a Illinois exclusion matters to any payer or employer in any state. The earliest exclusion start date the agency publishes is 1979-04-19 and the most recent is 2026-10-07. 329 of the records belong to providers that at least one other jurisdiction has also excluded. How the gap is measured, for every state: The federal gap, measured.

How to check a provider against the Illinois list

  1. In the browser, no account: paste or upload NPIs on Screen my providers. Each NPI is checked against the Illinois list and every other list at once; results download as CSV.
  2. By API: POST /v1/screen with NPIs, names or organizations; a free key allows 500 lookups a month. API documentation.
  3. In your warehouse: the free Snowflake listing or the weekly CSV / Parquet download; filter JURISDICTION = 'IL' in EXCLUSIONS_SCREENABLE.
  4. Then confirm with the agency. A hit identifies a published record and, where present, an NPI match with a stated confidence. Before any adverse action, verify against the official Illinois list (and OIG's SSN-based search for LEIE matches).

Screen my providers → Official IL list ↗

About this source

Official listIllinois HFS-OIG Provider Sanctions List
Published asa JSON feed
Update cadenceThe agency updates it monthly
Records in RosterProof3,248 total, 3,245 active, 8 with a start date in the last 90 days
Identity resolution912 distinct NPIs confirmed in the CMS NPPES registry; the rest are name-only records, matched by exact name and state. Match tiers: data dictionary.
Source identifierSOURCE_ID = 'IL', JURISDICTION = 'IL'
AttributionFull notices for every source: Attribution & notices.

Other state lists

Every list RosterProof loads, each with its official source and how to screen against it (all states + DC):

AlabamaAlaskaArizonaArkansasCaliforniaColoradoConnecticutDelawareDistrict of ColumbiaGeorgiaHawaiiIdahoIndianaIowaKansasKentuckyLouisianaMaineMarylandMassachusettsMichiganMinnesotaMississippiMissouriMontanaNebraskaNevadaNew HampshireNew JerseyNew YorkNorth CarolinaNorth DakotaOhioOregonPennsylvaniaSouth CarolinaTennesseeTexasVermontWashingtonWest VirginiaWyoming
Verify before adverse action. RosterProof is a screening data layer, not a fraud detector. A hit identifies a published exclusion record and, where present, an NPI match with a stated confidence. Confirm against the source agency before taking any action. Free for compliance screening under the Terms of Use.