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Processing the CMS-855O Medicare Enrollment Application – Enrollment for Eligible Ordering, Certifying Physicians, and Other Eligible Professionals

Guidance for: This document contains instructions and information to assist providers/suppliers in completing the form CMS-8550 application and Medicare Administrative Contractors in processing this form, which enrolls eligible ordering and certifying physicians and other eligible professionals in the Medicare program.

Download the Guidance Document

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

Issue Date: January 01, 2020

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.