How Medicare's Local Carrier Determinations Affect You

You’re a Medicare provider. And you know that the Centers for Medicare and Medicaid Services (CMS) runs Medicare. But did you know that CMS is just the umbrella organization? The actual administration is done by a Medicare Administrative Contractor (MAC.) What is a MAC? A MAC is a private health care insurer that’s been awarded a geographic jurisdiction to process claims for Medicare Fee-For-Service beneficiaries. CMS relies on the network of MACs to serve as the primary o...