1. Requiring a separate identification number and an attestation for each off-campus outpatient department of a provider Section 1833(t) of the Social Security Act ( 42 U.S.C. 1395l(t) ) is amended by adding at the end the following new paragraph: (23) Use of unique health identifiers; attestation (A) In general No payment may be made under this subsection (or under an applicable payment system pursuant to paragraph (21)) for items and services furnished on or after January 1, 2026, by an off-campus outpatient department of a provider (as defined in subparagraph (C)) unless— (i) such department has obtained, and such items and services are billed under, a unique health identifier (as established pursuant to standards described in section 1173(b)) that is separate from such identifier for such provider