; rebate (A) Effective date The amendment made by paragraph (1) shall apply with respect to items and services furnished during a reporting 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 critical access hospitals a reimbursement equal to the amount by which— (i) the amount of reimbursement made under section 1814 of the Social Security Act ( 42 U.S.C. 1395f ), before application of this subsection, for such items and services furnished during such period by such hospitals, is less than (ii) the amount of reimbursement that would have been made under such section, after application of this subsection, for such items and services furnished by such hospitals during such period. (d) Medicare Advantage (1) In general Section 1853 of the Social Security Act ( 42 U.S.C. 1395w–23 ) is amended— (A) in subsection (l)— (i) in paragraph (1)— (I) by striking paragraphs (3) and (4) and inserting paragraph (3) ; (II) by striking sections 1848(o) and 1848(a)(7) and inserting section 1848(o) ; and (III) by striking and payment adjustments under paragraph (4) shall apply to ; and (ii) by striking paragraph (4); and (B) in subsection (m)— (i) in paragraph (1)— (I) by striking paragraphs (3) and (4) and inserting paragraph (3) ; (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