; (II) by striking sections 1886(n) and 1886(b)(3)(B)(ix) and inserting section 1886(n) ; and (III) by striking and payment adjustments under paragraph (4) shall apply to ; and (ii) by striking paragraph (4). (2) Effective date; rebate (A) Effective date The amendments made by paragraph (1) shall apply with respect to items and services furnished during an applicable period beginning on or after October 1, 2014. (B) Rebate With respect to items and services furnished during the period beginning on the first day on which paragraph (1) applies, and ending on the date of the enactment of this Act, the Secretary of Health and Human Services shall implement a method to provide MA organizations a reimbursement equal to the amount by which— (i) the payment amount payable under section 1853 of the Social Security Act ( 42 U.S.C. 1395w–23 ) for such organization, before application of this subsection, for such items and services furnished during such period, is less than (ii) the payment amount that would have been payable under such section for such organization, after application of this subsection, for such items and services furnished during such period.