Medicare Enrollment Assistance & Contacts

Need help? If you’re a health care provider, your Medicare Administrative Contractor (MAC) or the National Supplier Clearinghouse (NSC) can help.

Medicare Administrative Contractors (MACs) process all Medicare enrollment applications for Part A and B providers and suppliers. MACs serve as the primary avenue of communication between health care providers and the CMS Medicare Fee-For-Service program.

Your MAC can:

• Help you navigate the enrollment process
• Answer questions about your application
• Keep you posted on the status of your application
• Answer questions you may have about Part A and Part B claims

Find and contact your MAC (PDF).

The National Supplier Clearinghouse (NSC) processes all Medicare enrollment applications for DMEPOS suppliers.

The NSC can:

• Help you navigate the enrollment process
• Answer questions about your application
• Keep you posted on the status of your application

Contact the NSC.