805 ILCS 15/5
No corporation shall open, operate or maintain an establishment for any of the purposes set forth in Section 2 of this Act without a certificate of registration from the Department of Financial and Professional Regulation, hereinafter called the Department. Application for such registration shall be made to the Department in writing and shall contain the name and primary mailing address of the corporation, the name and address of the corporation's registered agent, the address of the practice location maintained by the corporation, each assumed name being used by the corporation, and such other information as may be required by the Department. All official correspondence from the Department shall be mailed to the primary mailing address of the corporation except that the corporation may elect to have renewal and non-renewal notices sent to the registered agent of the corporation. A separate application shall be submitted for each business location in Illinois. If the corporation is using more than one fictitious or assumed name and has an address different from that of the parent company, a separate application shall be submitted for each fictitious or assumed name. Upon receipt of such application, the Department shall make an investigation of the corporation. If the Department finds that the incorporators, officers, directors and shareholders are all licensed pursuant to the Medical Practice Act of 1987 and if no disciplinary action is pending before the Department against any of them, and if it appears that the corporation will be conducted in compliance with law and the regulations of the Department, the Department shall issue, upon payment of a registration fee of $50, a certificate of registration.
805 ILCS 15/5