New York Laws
Title 2-D - Health Care Practitioner Referrals
238-B - Provider Requests for Payment.

ยง 238-b. Provider requests for payment. Each request for payment or
bill submitted by a health care provider for clinical laboratory,
pharmacy services, radiation therapy services, physical therapy services
or x-ray or imaging services for which the provider knows or has reason
to believe that there has been a referral by a referring practitioner
who is an interested investor in the health care provider shall identify
the referring practitioner by name and by professional license number or
any appropriate program provider number. The provisions of this section
shall not apply to requests for payment or bills the content of which
are regulated solely by federal law or regulation and to services
excluded pursuant to paragraph (a), (b), (c), (d) or (e) of subdivision
two of section two hundred thirty-eight-a of this title from the
prohibitions of subdivision one of section two hundred thirty-eight-a of
this title.