1. Short title This Act may be cited as the Facilitating Accountability In Reimbursements Act or the FAIR Act . 2. Ensuring fair billing practices for items and services furnished by off-campus outpatient departments of a provider (a) Separate NPIs for off-Campus outpatient departments of a provider (1) In general Section 1173(b) of the Social Security Act ( 42 U.S.C. 1320d–2(b) ) is amended by adding at the end the following new paragraph: (3) Ensuring separate NPIs for off-campus outpatient departments of a provider The standards specified under paragraph (1) shall ensure that, not later than January 1, 2025, each off-campus outpatient department of a provider (as defined in section 1833(t)(21)(B)) is assigned a separate unique health identifier from such provider. . (2) Treatment of certain departments as subparts of a hospital Not later than January 1, 2025, the Secretary of Health and Human Services shall revise sections 162.408 and 162.410 of title 45, Code of Federal Regulations, to ensure that each off-campus outpatient department of a provider (as defined in section 1833(t)(21)(B) of the Social Security Act ( 42 U.S.C. 1395l(t)(21)(B) )) is treated as a subpart (as described in such sections) of such provider and assigned a unique health identifier pursuant to section 1173(b)(3) of such Act (as added by paragraph (1)). (b) Off-Campus departments of a provider billing requirements (1) Medicare (A) In general Section 1866(a)(1) of the Social Security Act ( 42 U.S.C. 1395cc(a)(1) ) is amended— (i) in subparagraph (X), by striking and at the end; (ii) in subparagraph (Y)(ii)(V), by striking the period and inserting , and