Skip to main content
  • Medicaid Provider Alert: Provider revalidation has begun and those not completing the process risk disenrollment.  Check your account now to learn when your revalidation is due. More information here.

Our new Child Support Cook Central Office at 115 South LaSalle Street, Chicago, is now open for in-person assistance.  We also have other regional office locations to better serve you! 

Elizabeth M. Whitehorn, Director

Managed Care Billing/Payment Issues

Billing and payment issues for patients enrolled in MCOs should be addressed as follows:

If the provider is in the network, the provider should work with the MCO.

If the provider is not in the network:

  • The provider should bill the participant's site.
  • The provider can obtain information on the participant's site by calling the MCO Member Services number or by calling the department's Provider Eligibility Inquiry Hotline at 1-800-842-1461. This number will be answered by the Automated Voice Response System. The provider should select the option to speak to a Provider Hotline representative.
  • If the site rejects the claim, the provider should bill the MCO and include a copy of the rejection from the site.
  • If the provider is not satisfied with the resolution of the claim by the MCO, the provider should file a grievance using the MCO's provider grievance process.