(b) It is the sole responsibility of the insurer to provide for competent administration of its programs.
(c) In cases where an administrator administers benefits for more than one hundred certificate holders on behalf of an insurer, the insurer shall, at least semiannually, conduct a review of the operations of the administrator. At least one review shall be an on-site audit of the operations of the administrator.
(d) For purposes of this section, "insurer" means a licensed insurance company, prepaid hospital or medical care plan, health maintenance organization or a health care corporation.