The Secretary shall periodically determine the amount which should be paid under this part to each provider of services with respect to the services furnished by it, and the provider of services shall be paid, at such time or times as the Secretary believes appropriate (but not less often than monthly) and prior to audit or settlement by the Government Accountability Office, from the Federal Hospital Insurance Trust Fund, the amounts so determined, with necessary adjustments on account of previously made overpayments or underpayments; except that no such payments shall be made to any provider unless it has furnished such information as the Secretary may request in order to determine the amounts due such provider under this part for the period with respect to which the amounts are being paid or any prior period.

No payment shall be made to a provider of services which is a hospital for or with respect to services furnished by it for any period with respect to which it is deemed, under section 1395x(w)(2) of this title, to have in effect an arrangement with a quality improvement organization for the conduct of utilization review activities by such organization unless such hospital has paid to such organization the amount due (as determined pursuant to such section) to such organization for the review activities conducted by it pursuant to such arrangements or such hospital has provided assurances satisfactory to the Secretary that such organization will promptly be paid the amount so due to it from the proceeds of the payment claimed by the hospital. Payment under this subchapter for utilization review activities provided by a quality improvement organization pursuant to an arrangement or deemed arrangement with a hospital under section 1395x(w)(2) of this title shall be calculated without any requirement that the reasonable cost of such activities be apportioned among the patients of such hospital, if any, to whom such activities were not applicable.