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J Oncol Pract. 2008 September; 4(5): 240–241.
PMCID: PMC2794011

Medicare Contracting Reform

Short abstract

Having a single Medicare administrative contractor, or MAC, lets providers rely on one entity for coverage and reimbursement policies, claims processing issues, and general provider information.

The Medicare Modernization Act (MMA) of 2003 initiated the most significant changes to the administration of the Medicare program since its inception in 1965. The contracting reform provisions in the MMA required fundamental changes to the operational infrastructure of the Medicare fee-for-service program. For example, the reform requires the re-engineering of fee-for-service business processes, and provides incentives to encourage innovation, outstanding service, and customer satisfaction. The fee-for-service contracting reform also integrates Medicare Parts A and B under a single contractor, known as a Medicare administrative contractor (MAC). With this change, providers will have one contractor per designated region that will process both Part A and Part B claims. Providers will now rely on one entity, their MAC, for coverage and reimbursement policies, claims processing issues, and general provider information.

MACs are being awarded by the Centers for Medicare and Medicaid Services using a competitive acquisition process, which is outlined under the Federal Acquisition Regulations. Each MAC has a defined geographical jurisdiction that covers multiple states (Fig 1). Eight MAC contracts have now been awarded. Table 1 outlines each jurisdiction and the states within each jurisdiction, the company awarded the MAC contract, and the award date.

Figure 1.
Medicare administrative contractor jurisdiction map.
Table 1.
Medicare Administrative Contractor Jurisdiction Information

For additional information on Medicare Contracting Reform, MACs, as well as information on your state Carrier Advisory Committee (CAC) representative, visit You can also contact Laura Cathro, ASCO's Medicare Program Coordinator, at 571-483-1642 or

Physician Payment Update

On July 15, 2008, the House of Representatives and the Senate both voted to override the President's veto of the Medicare Improvements for Patients and Providers Act of 2008, which averted the 10.6% cut in physician payments under the Medicare Physician Fee Schedule. Given that Congress over-rode the veto, the law will go into effect and provide a 0.5% increase for the remainder of 2008 (retroactive to July 1, 2008) and will provide a 1.1% increase for the year 2009.

ASCO Activities Specific to MAC Transition

  • ASCO has developed a MAC Advisory Group that includes two Career Advisory Committee (CAC) representatives from each of the 15 assigned A/B MAC jurisdictions, and works to develop models for coordinating input on oncology policies among affected states, actively monitors the consolidation of local coverage determinations (LCDs) within the new MAC jurisdictions, and reports out to other stakeholders in their areas.
  • CAC Network E-News is a monthly electronic newsletter to hematology/oncology CAC representatives, state society presidents, and state society executive directors that contains updates on MAC awards, draft and final oncology-specific local coverage determinations, national coverage developments, and recent FDA approvals. These e-newsletters are available at
  • ASCO reaches out to Carrier Medical Directors to raise awareness of ASCO, its state/regional affiliates, and the oncology CAC representatives as the authoritative resources on cancer care.

Articles from Journal of Oncology Practice are provided here courtesy of American Society of Clinical Oncology