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  • 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.
  • The Cook Central Office, 36 South Wabash Avenue, Chicago, will close 02/03/2025.  The new Cook Central Office will open at 115 South LaSalle, Chicago, for in-person service on 02/10/2025.  
  • ​UPDATE: The State Disbursement Unit (SDU) is processing all payments received. To verify the status of your payment, please log into the SDU parent portal or contact the SDU Customer Service Call Center at 877.225.7077.  For SDU business hours, click here.
Elizabeth M. Whitehorn, Director

Provider Contact Information

Collar Counties & Suburban Cook

  • Aetna Better Health
    One South Wacker, Suite 1200
    Chicago, IL 60606
    1-866-212-2851
    Prompt for Providers-Press 2, then select 5
    to speak to a Provider Services Representative
  • IlliniCare Health Plan
    999 Oakmont Plaza Dr Ste 400
    Westmont, IL 60559
    866-329-4701 # 48158
    Richard Flores, VP Network Development and Provider Relations
    E-mail ricflores@centene.com
    General Request to join inquiries: ILContracting@centene.com

Rockford Region

  • Aetna Better Health
    One South Wacker, Suite 1200
    Chicago, IL 60606
    1-866-212-2851
    Prompt for Providers-Press 2, then select 5
    to speak to a Provider Services Representative
  • Community Care Alliance of Illinois
    322 S Green St Ste 400
    Chicago, IL 60607
    312-491-1956 # 677
    Melissa Dunne
    E-mail mdunne@fhnchicago.com
  • IlliniCare Health Plan
    999 Oakmont Plaza Dr Ste 400, Suite 400
    Westmont, IL 60559
    866-329-4701 # 47827
    Humberto Torres, VP Network Development and Provider Relations
    E-mail htorres@centene.com
    General Request to join inquiries: ILContracting@centene.com

Central Illinois Region

  • Health Alliance Medical Plans
    301 S. Vine Street
    Urbana, IL 61801-3347
    217-337-8117
    Toll-free: 1-800-851-3379 # 8117
    Maxine Wallner, Director, Contracting & Provider Services
    E-mail Maxine.wallner@healthalliance.org
  • Meridian Health Plan
    222 N LaSalle St, Suite 930
    Chicago, Illinois  60601
    312-705-2900 #2161
    Mari Jo Nissen
    E-mail Marijo.nissen@mhplan.com
  • Molina Healthcare of Illinois
    1520 Kensington Dr., Suite 212
    Oak Brook, IL 60523
    630-203-3905 (office)
    312-343-7940 (cell)
    Nancy Wohlart
    Nancy.Wohlhart@molinahealthcare.com    

Quad Cities

  • HealthSpring of Illinois
    9701 W Higgins Rd, Suite 360
    Rosemont, Illinois  60018
    847-993-1966
    Andrew Galbierz, Network Operations Administrator
    E-mail Andrew.Galbierz@healthspring.com
  • IlliniCare Health Plan
    999 Oakmont Plaza Dr, Suite 400
    Westmont, Illinois  60559
    866-329-4701 # 47827
    Humberto Torres, VP Network Development and Provider Relations
    E-mail htorres@centene.com
    General Request to Join Inquiries: ILContracting@centene.com

Metro East

  • Meridian Health Plan
    222 N LaSalle St, Suite 930
    Chicago, Illinois  60601
    312-705-2900 #2161
    Mari Jo Nissen
    E-mail Marijo.nissen@mhplan.com
  • Molina Healthcare of Illinois
    1520 Kensington Dr., Suite 212
    Oak Brook, IL 60523
    630-203-3905 (office)
    3012-343-7940 (cell)
    Nancy Wohlart
    E-mail Nancy.Wohlhart@molinahealthcare.com