MAC Website List
Guidance for CMS page Medicare Administrative Contractor
Specialty contractor & MAC websites
Specialty contractors:
- DME Common Electronic Data Interchange (CEDI): serves as the electronic gateway for DMEPOS suppliers, overseeing EDI enrollment and routing electronic claims and billing transactions to their DME Medicare Administrative Contractor (MAC)
- National Provider Enrollment (NPE) Contractors (NPEast or NPWest): processes Medicare enrollment, revalidation, and participation actions for DMEPOS suppliers
- Pricing, Data Analysis and Coding Contractor (PDAC): provides DMEPOS product coding verification and pricing-related support
- Railroad Retirement Board (RRB): administers Medicare benefits for eligible railroad beneficiaries and their dependents
MAC websites, secure internet portals, & electronic mailing lists by state
- Alabama
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- Alaska
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- American Samoa
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- Arizona
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- Arkansas
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- California
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- Colorado
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- Connecticut
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- Delaware
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- District of Columbia
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- Florida
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- Georgia
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- Guam
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- Hawaii
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- Idaho
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- Kansas
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- Kentucky
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- Louisiana
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- Maine
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- Maryland
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- Massachusetts
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- Michigan
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- Minnesota
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- Mississippi
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- Missouri
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- Montana
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- Nebraska
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- Nevada
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- New Hampshire
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- New Jersey
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- New Mexico
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- New York
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- North Carolina
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- North Dakota
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- Northern Mariana Islands
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- Ohio
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- Oklahoma
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- Oregon
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- Pennsylvania
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- Puerto Rico
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- Rhode Island
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- South Carolina
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- South Dakota
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- Tennessee
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- Texas
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- US Virgin Islands
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- Utah
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- Vermont
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- Virginia
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- Washington
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- West Virginia
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- Wisconsin
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- Wyoming
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Issued by: Centers for Medicare & Medicaid Services (CMS)
Issue Date: December 02, 2019
HHS is committed to making its websites and documents accessible to the widest possible audience, including individuals with disabilities. We are in the process of retroactively making some documents accessible. If you need assistance accessing an accessible version of this document, please reach out to the guidance@hhs.gov.
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.