Complex sentence: Policies vary according to local coverage determinations (LCDs) that different Medicare administrative contractors (MACs) for the Centers for Medicare and Medicaid Services (CMS) make for each of ten to fifteen MAC jurisdictions that each cover several U.S. states.
Split into simpler sentences: Policies vary according to local coverage determinations (LCDs) that Medicare administrative contractors (MACs) for the Centers for Medicare and Medicaid Services (CMS) make for geographical areas over which they have jurisdiction. CMS presently has ten to fifteen MAC jurisdictions that each cover several U.S. states.