Provider Connections

twins lying on backsEnrollment Overview

The Illinois Medical Assistance Program Illinois Medicaid Program Advanced Cloud Technology (IMPACT) is required for many providers. Please visit the IMPACT webpage for more information.

The EI Central Billing Office (CBO) is the Illinois Department of Human Services (IDHS) designee for processing the state's payment of claims to Early Intervention (EI) providers, providing linkage with the Illinois Cornerstone System and maintaining provider data/interface with the Cornerstone system.

  • Enrollment into the CBO is required for all EI providers with the exception of credentialed associates. 
  • Providers and/or agencies in the EI system must enter into a Payee Provider Agreement to provide early intervention services in the state of Illinois.
  • Once an agency has completed an agreement, subsequent enrollees for the agency are not required to complete the agency agreement.

The purpose of the agreements is to establish the duties, expectations and relationship between DHS and the Provider who make service(s) available to eligible children and their families according to the Illinois Early Intervention Services System Act, Part C of the Individuals with Disabilities Act, the Health Insurance Portability and Accountability Act of 1996, and EI administrative rules.

It is the responsibility of each provider to be familiar with the provisions of this agreement and to adhere to its requirements.

ALL CBO enrollment application forms, whether initial or otherwise, must be sent to Provider Connections for processing. Do not send these documents directly to the CBO or IDHS. Doing so will delay the processing of your enrollment. Technical support questions regarding the enrollment process should be directed to Provider Connections at (800) 701-0995.

Provider Connections

Contact Info

Provider Connections
Center for Best Practices in Early Childhood Education
Western Illinois University
1 University Circle
Macomb, IL 61455

Phone:  800-701-0995
Fax:  309-298-3066

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  • Early Intervention Provider Payment Update Effective 10/10/19

  • 2nd Addendum to New Requirement for CMS 1500/UB04 Claim Forms 10/02/19

  • Early Intervention Provider Payment Update Effective 10/02/19

  • Early Intervention Provider Payment Update Effective 10/01/19

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