the following: (1) A description of gaps in access to providers for individuals enrolled in the State Medicaid plan that the State has identified, and how the State proposes to fix such gaps. (2) A discussion of any changes the State proposes to make to the reimbursement of providers under the State Medicaid plan, including changes to the fee-for-service rates for providers of services under such plans or moving to population-based or episode-based payment models. (3) A justification establishing that the changes proposed by the State will increase access to providers for individuals enrolled in the State Medicaid plan, and a plan for measuring changes to such access over the grant period. (c) Use of funds (1) In general If the Secretary determines that a State is using grant funds awarded under this section in a manner that is inconsistent with the purpose described in subsection (a) or paragraph (2), the Secretary may withhold or reduce future grant payments or recover previous grant payments to the State under this section as the Secretary deems appropriate. (2) Use of funds to implement Medicaid buy-in program A State may use up to 10 percent of the amount of a grant awarded to the State under this section for the purpose of implementing a Medicaid buy-in program under subclause (XXIII) of section 1902(a)(10)(A)(ii) of the Social Security Act ( 42 U.S.C. 1396a(a)(10)(A)(ii) ). (3) Use of funds to increase Medicaid provider payment rates Notwithstanding any other provision of law, a State may use grant funds awarded under this section for the purpose of financing the portion of the non-Federal share of expenditures under the State Medicaid plan under title XIX of the Social Security Act ( 42 U.S.C. 1396 et seq.) that is attributable to an increase in the payment rate for providers under such plan. (d) Selection of States and maximum grant amount In awarding grants to States under this section, the Secretary shall— (1) ensure that geographically diverse areas, including rural and underserved areas, are