Claim Submission

Claims for Chicago Health System members for Blue Cross Blue Shield (BCBS) Blue Advantage HMO, BCBS HMO Illinois, BCBS Blue Precision HMO, BCBS Blue Medicare Advantage HMO, Humana HMO, and Humana Gold (Medicare Advantage) must be sent to Chicago Health System. All claims must be received within 90 days of the service date to be eligible for payment. Claims should be submitted electronically with the following Payer ID numbers:

  • MacNeal Health Providers:          36334
  • Weiss Health Providers:               36337

For all plans mentioned above it is imperative that you do not send claims directly to the health plans. Chicago Health System is not responsible for delays or inaccuracies contained in information which is forwarded to Chicago Health System from the health plans. Proof that a claim was sent to the health plan within the 90 day limit does not meet Chicago Health System’s requirement for timely filing.

Claims for Chicago Health System members for the BCBS Medicare-Medicaid Alignment Initiative (MMAI), Humana MMAI, Humana Integrated Care Program (ICP), and Humana HMO X should be sent directly to the plans using the Payer ID’s below.

  • Blue Cross Blue Shield (Professional Claims):  00621
  • Blue Cross Blue Shield (Facility Claims):            00121
  • Humana:                                                                 61101

For Offices Without Electronic Billing

If your practice is not set up for electronic billing through an electronic data interface (EDI) contact your provider relations representative. Your representative will provide you with the Emdeon payer ID for Chicago Health System so that you may bill through Emdeon or an intermediary clearinghouse.