Medicare Carriers
The Medicare program is making a transition from Medicare Carriers to Medicare Administrative Contractors. Medicare Carriers oversee Part B for specific states.
Medicare Administrative Contractors (MACs) will oversee both Parts A and B for all of the 15 jurisdictions CMS has designated.
MACs are in place for 9 of the 15 jurisdictions, which are indicated by jurisdiction number in the complete list of State Medicare Carriers/Administrative Contractors (updated June 2010).
We will keep the list updated as assignments are made. However, in general the links provided for each of the states in transition from Medicare Carrier to MAC will link to the correct site, even if the entity has changed.
Members may call the Managed Care HelpLine 800.343.4671 for additional information.