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Billing Information for Most Favored Nation (MFN) Model Drugs

This fact sheet provides Medicare-participating providers and suppliers required to participate in the Most Favored Nation (MFN) Model with information on how to bill their Medicare Administrative Contractors (MACs) for MFN Model drugs during the 7-year model. The model is testing a new way for Medicare Part B to determine the payment amount for included drugs. CMS only includes certain Part B drugs in the model.

Download the Guidance Document


Issued by: Centers for Medicare & Medicaid Services (CMS)

DISCLAIMER: The contents of this database lack the force and effect of law, except as authorized by law (including Medicare Advantage Rate Announcements and Advance Notices) or as specifically incorporated into a contract. The Department may not cite, use, or rely on any guidance that is not posted on the guidance repository, except to establish historical facts.