products. (4) Medicare beneficiary The term Medicare beneficiary means an individual who is enrolled for benefits under part B of title XVIII of the Social Security Act. (5) Participating provider The term participating provider means an eligible provider that has been selected for participation under the project under subsection (b)(2) and with respect to whom such participation has not been terminated. (6) Reference biological product The term reference biological product means the biological product licensed under section 351 of the Public Health Service Act ( 42 U.S.C. 262 ) that is referred to in the application described in paragraph (2) of the biosimilar biological product. 3. Extending eligibility for certain payment increases for biosimilar biological products under the Medicare program Section 1847A(b)(8)(B)(ii)(II) of the Social Security Act (42 U.S.C. 1395w–3a(b)(8)(B)(ii)(II)) is amended by striking 2027 and inserting 2032 .