Review The regional director, on a quarterly basis, shall review whether requirements of the institutional provider’s participation agreement and negotiated global budget have been performed and shall determine whether adjustments to such institutional provider’s payment are warranted. This review shall include consideration for additional funding necessary for unanticipated items and services for individuals with complex medical needs or market-shift adjustments related to patient volume, and an assessment of any adjustments made to ensure that accuracy and need for adjustment was appropriate. (3) Agreements for Salaried Payments for Certain Providers (A) In general Certain group practices and other health care providers, as determined by the Secretary, with agreements to provide items and services at a specified institutional provider paid a global budget under this subsection may elect to be paid through such institutional provider’s global budget in lieu of payment under section 612. (B) Salaries Any individual health care professional of such group practice or other provider receiving payment through an institutional provider’s global budget under this paragraph shall be paid on a salaried basis that is equivalent to salaries or other compensation rates negotiated for individual health care professionals of such institutional provider. (C) Reporting and disclosure requirements Any group practice or other health care provider that receives payment through an institutional provider's global budget under this paragraph shall be subject to the same reporting and disclosure requirements of the institutional provider. (4) Interim adjustments The regional director shall consider a petition for adjustment of any payment under this section filed by an institutional provider at any time based on the following: (A) Factors that led to increased costs for the institutional provider that can reasonably be considered to be unanticipated and out of the control of the institutional provider, such as— (i) natural disasters