Ill. Admin. Code tit. 74, § 900.130
a) Late payment interest pertaining to health care payments may be made to and requested by a:
d) A request for interest must contain the following information to be processed:
2) Name of employee/member and claimant
Social Security number
Date of Service
Amount of claim
Claim control number
e) Interest shall be payable only to the designated payee indicated on the claim. Ordinarily, the payee is the Vendor; however:
For claims for payment related to the State Employee's Group Insurance Program the following applies: