What entity replaced the Part A fiscal intermediaries and the Part B contractors?

The entity that replaced the Part A fiscal intermediaries and the Part B contractors is known as MACs, which stands for Medicare Administrative Contractors. The establishment of MACs was part of the initiative to streamline and improve the process of administering Medicare services. MACs are responsible for various functions such as processing claims, managing providers, and ensuring compliance with Medicare regulations.

The introduction of MACs allowed for a more unified and efficient approach to managing Medicare claims and payments, moving away from the fragmented system that involved separate fiscal intermediaries and contractors. This change was aimed at enhancing the overall efficiency of the Medicare program and improving customer service for beneficiaries and providers alike.