with respect to the services described in clause (ii) of section 1395k(a)(2)(D) of this title that are furnished to an individual enrolled with a MA plan under part C pursuant to a written agreement described in section 1395w–23(a)(4) of this title , the amount (if any) by which—
(i)#
the amount of payment that would have otherwise been provided (I) under subparagraph (A) (calculated as if “100 percent” were substituted for “80 percent” in such subparagraph) for such services if the individual had not been so enrolled, or (II) in the case of such services furnished on or after the implementation date of the prospective payment system under section 1395m( o ) of this title, under such section (calculated as if “100 percent” were substituted for “80 percent” in such section) for such services if the individual had not been so enrolled; exceeds
(ii)#
the amount of the payments received under such written agreement for such services (not including any financial incentives provided for in such agreement such as risk pool payments, bonuses, or withholds),