Final answer:
The Medicare Administrative Contractor for Wisconsin is National Government Services (NGS). They handle the processing of Medicare Part A and B claims or durable medical equipment claims for Medicare beneficiaries in Wisconsin.
Step-by-step explanation:
The Medicare Administrative Contractor (MAC) for Wisconsin is National Government Services (NGS). MACs are private health care insurers that have been awarded a geographic jurisdiction to process Medicare Part A and Part B medical claims or durable medical equipment claims for Medicare Fee-For-Service (FFS) beneficiaries. These contractors serve as the primary point of contact for the billing of health care services provided to Medicare beneficiaries.