Illinois Moves ABA Providers to a Two-Year Medicaid Revalidation Cycle

HFS will email each provider its deadline. An outdated IMPACT email or an expired license means you won't get it.

On October 5, 2026, Illinois HFS told every Medicaid provider that applied behavior analysis providers are being pulled out of the five-year revalidation schedule. ABA providers, along with high-risk providers, providers without an NPI and laboratories, will now have to revalidate within an upcoming two-year cycle. Miss the end of your assigned cycle and HFS disenrolls you, and reactivation can't be made retroactive.

Why ABA is on the list

The trigger is federal. On April 23, 2026, CMS sent state Medicaid directors and governors letters asking for a swift revalidation of high-risk providers and a two-year revalidation strategy, with off-cycle or more frequent revalidation than the five-year minimum in 42 CFR 455.414. CMS expects "high-risk" to include providers without NPIs. It didn't name ABA. Illinois added it, as Missouri did in its own off-cycle revalidation.

That matters because the notice gives no dates of its own. HFS assigns each provider a cycle end date and sends it only by email, so the real deadline lives in an inbox, not in the notice.

What the notice says

  • Who's out of scope: providers who revalidated or newly enrolled between April 30, 2025 and April 30, 2026 aren't affected by this change.
  • How you'll hear: two emails, 90 and 30 calendar days before your cycle end date, sent to the address(es) in the Basic Information step of your IMPACT enrollment. Nothing comes by mail.
  • Don't start early: HFS says not to attempt revalidation until the email arrives.
  • Every location separately: providers with multiple service locations revalidate each one, and get a separate notice for each.
  • An expired license silences the notice: if a license or certification in IMPACT has expired and isn't updated before notices go out, "you will not be notified of your revalidation cycle due date."
  • Consequence: failure to revalidate by the end of the cycle means disenrollment, and any gap in enrollment "will affect your payments."

The limits

The notice doesn't say when the two-year cycle starts, how ABA providers will be staged within it, or which ABA enrollment types it means. Its general revalidation rule covers facilities, agencies and organizations, groups, individuals and atypical providers, so assume every ABA enrollment you hold is in scope. It doesn't mention site visits or fingerprinting. Not every provider is revalidated at the same time.

What you must know or do

  • Owners: log in to IMPACT this week and check the email in Basic Information for every enrollment and every service location. Point it at a monitored shared inbox, not one person.
  • Owners and billers: check that every license in IMPACT is current. Illinois has licensed behavior analysts since January 15, 2025, so a renewed license that was never updated in IMPACT is the gap to look for.
  • Confirm you can sign in to IMPACT through Okta now, and that the taxonomy in NPPES matches the services you bill.
  • Check your last revalidation or enrollment date. If it falls between April 30, 2025 and April 30, 2026, this change doesn't reach you. File the date.
  • When the 90-day email lands, calendar the cycle end date. Questions go to provider enrollment at 877-782-5565.