decisionhealth Newsletters, Answer Books - 2009 Issue 3 (March)
Medicare Administrative Contractors - Overview / CMS List of MAC Jurisdictions
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Article Overview
This article summarizes CMS Medicare Administrative Contractor (MAC) jurisdiction assignments and how Medicare administration is divided across Part A/B, durable medical equipment, and home health/hospice claim categories. It is useful for billing and reimbursement teams, compliance staff, and other healthcare administrators who need a high-level understanding of CMS jurisdiction structure and service-area groupings.
Why This Topic Matters
MAC jurisdiction assignments affect how Medicare claims are routed and administered, so understanding the CMS geography is important for operational setup, payer workflow, and jurisdictional reference.
Article Sections
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A/B MAC Jurisdictions
Lists the numbered CMS jurisdiction groupings used for Part A and Part B administration and identifies the states and territories included in each grouping.
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DME MAC Jurisdictions
Lists the alphabetic CMS jurisdiction groupings used for durable medical equipment administration and identifies the states and territories included in each grouping.
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Home Health Care & Hospice MAC Jurisdictions
Describes how home health and hospice claims are consolidated into selected Medicare Administrative Contractor jurisdictions and outlines the related jurisdiction groupings.
What You Will Learn
- How CMS organizes Medicare Administrative Contractor jurisdictions
- How jurisdiction groupings are structured for different Medicare claim categories
- Which broad claim types are handled within the MAC framework
- How CMS divides service areas across states and territories
Who Should Read This
- Medical coders
- Billing staff
- Revenue cycle professionals
- Compliance staff
- Healthcare administrators
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