Security Act shall provide to the Service a list of each provider enrollment number (or other identifier) under which such program receives such reimbursements or payments. (3) Examination and implementation of changes (A) In general The Secretary, acting through the Service and with the assistance of the Administrator of the Centers for Medicare & Medicaid Services, shall examine on an ongoing basis and implement any administrative changes that may be necessary to facilitate direct billing and reimbursement under the program established under this subsection, including any agreements with States that may be necessary to provide for direct billing under a program under title XIX or XXI of the Social Security Act . (B) Coordination of information The Service shall provide the Administrator of the Centers for Medicare & Medicaid Services with copies of the lists submitted to the Service under paragraph (2)(C), enrollment data regarding patients served by the Service (and by tribal health programs, to the extent such data is available to the Service), and such other information as the Administrator may require for purposes of administering title XVIII, XIX, or XXI of the Social Security Act . (4) Withdrawal from program A tribal health program that bills directly under the program established under this subsection may withdraw from participation in the same manner and under the same conditions that an Indian tribe or tribal organization may retrocede a contracted program to the Secretary under the authority of the Indian Self-Determination and Education Assistance Act ( 25 U.S.C. 450 et seq.). All cost accounting and billing authority under the program established under this subsection shall be returned to the Secretary upon the Secretary’s acceptance of the withdrawal of participation in this program. (5) Termination for failure to comply with requirements The Secretary may terminate the participation of a tribal health program or in the direct billing program established under this subsection if the Secretary