Each organization health care provider and each subpart that is required or eligible to obtain an NPI pursuant to 45 CFR 162.410 must apply for, obtain, and use, on all claims for payment for medical care, services, or goods authorized under this article 4 and articles 5 and 6 of this title 25.5, a unique NPI for each site at which the organization health care provider or its subparts deliver medical care, services, or goods.