Call Center

CMS Physician Self-Referral Call Center

Inquiries related to the physician self-referral law, the CMS Voluntary Self-Referral Disclosure Protocol, hospitals with physician ownership, or the procedure for submitting requests for advisory opinions may be e-mailed to the CMS Physician Self-Referral Call Center at 1877CallCenter@cms.hhs.gov.

Outside of the Advisory Opinion process set forth at 42 C.F.R. §§ 411.370 – 411.389, CMS will not opine on whether a specific factual arrangement complies with the physician self-referral law. However, CMS may provide guidance to assist parties in resolving questions regarding compliance with the physician self-referral law.

If you would like to submit a tip or complaint about potential fraud, waste, or abuse, contact the HHS Office of Inspector General at https://oig.hhs.gov/fraud/report-fraud/ or call 1-800-HHS-TIPS (1-800-447-8477).  

For help with billing or claim submission questions, contact your local Medicare Administrative Contractor (MAC).  You can find a list of MACs at https://www.cms.gov/medicare/coding-billing/medicare-administrative-contractors-macs.