What does MAC stand for in the Medicare context?

• A. Medicare Administrative Contractor
• B. Medicaid Administrative Contractor
• C. Medicare Audit Corporation
• D. Medical Assistance Contractor

Answer: (A)

In Medicare, MAC stands for Medicare Administrative Contractor. These are the organizations CMS contracts with to handle key administrative tasks for Part A and Part B, including processing and paying claims, provider enrollment, and various program integrity functions. The idea is to streamline administration by consolidating functions that used to be split between different entities, ensuring consistent claims processing across regions. The other options refer to Medicaid or are not recognized Medicare terms, so they aren’t correct in this context.