Change in Medicaid Provider Enrollment - IMPACT System

Illinois Department of Human Services
Division of Developmental Disabilities
Information Bulletin

Change in Medicaid Provider Enrollment - IMPACT System
May, 2015


The purpose of this Information Bulletin is to notify Division of Developmental Disabilities (DDD) Medicaid providers that Illinois is in the process of developing a new provider enrollment system in an effort to modernize the current 30-year-old Medicaid Management Information system (MMIS). The new system, known as Illinois Medicaid Program and Advanced Cloud Technology (IMPACT) is intended to provide a more convenient, streamlined and user-friendly experience.

If you are a Medicaid-enrolled provider in Illinois, you should have already received information directly from the Department of Healthcare and Family Services (HFS) about this new enrollment system. Please see more information on the HFS website for IMPACT System.


Current Medicaid Provider Enrollment Forms, completed via paper, are scanned into the Medicaid Management Information System (MMIS) maintained by HFS. DDD providers may not be paid for Medicaid-covered services unless these enrollment forms are in place. We are now in the midst of a conversion from this existing system to the new IMPACT system. For more information about IMPACT and the conversion:

Process and Procedure

Additional information will be forthcoming from HFS and DDD as the conversion moves forward. In the meantime, please be aware of the following:

  • Please participate in a webinar HFS is hosting for providers. The webinar is scheduled for Wednesday, May 13, 2015, from 1:00 p.m. - 2:30 p.m. Please Register for the Webinar.  After registering, you will receive a confirmation email with information on how to participate, which you can add to your Outlook calendar. 
  • IMPACT will replace only the use of paper applications used to enroll as a Medicaid provider.  Current requirements for providers and additional documentation will still be required to determine provider qualifications, secure access to the ROCS electronic billing system to submit claims and receive payments, etc.
  • All currently enrolled Medicaid providers will be required to re-validate their information in the IMPACT system. Timelines for providers to do this will be updated on the IMPACT web site maintained by HFS. Also, the DDD will issue future information bulletins notifying providers of deadlines within the system conversion process. 
  • There will be a temporary suspension of Medicaid enrollments beginning May 29, 2015. HFS will stop accepting new provider applications and paper-based updates before the IMPACT system comes online. This deadline may change based on the volume of pending applications, and special accommodations may be made for urgent or high-priority issues.

    The State must suspend enrollments prior to the IMPACT system coming online in order to ensure that data is transferred from the current Provider Enrollment system to the IMPACT system. Providers are encouraged to adjust their internal processes as needed. Most providers will be able to request a retroactive enrollment effective date for consideration once the IMPACT system is live. DDD and HFS are continuing to discuss options for minimizing disruptions in enrolling new providers.

Effective Date

Given the notice of the webinar on May 13, 2015, this Information Bulletin is effective immediately. Although we are not posting it as draft, we do welcome comments on the content. Any comments will be helpful to us for future bulletins on this topic and should be submitted to