furnished to an individual at an off-campus outpatient department of a provider (as defined in section 1833(t)(21)(B) of the Social Security Act), submit a claim for such items and services to a group health plan or health insurance issuer, and may not hold such individual liable for such items and services, unless such items and services are billed— (1) using the separate unique health identifier established for such department pursuant to section 1173(b)(3) of such Act