J12 MAC Transition
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On October 24, 2007, the Centers for Medicare and Medicaid Services (CMS) announced that Highmark Medicare Services was awarded the Jurisdiction 12 (J12) Medicare contract to provide the Medicare Fee-for-Services Part A and Part B administrative services for the states of Pennsylvania (PA), Maryland (MD), New Jersey (NJ), Delaware (DE) and the District of Columbia Metropolitan Area (DCMA).

As a MAC, Highmark Medicare Services will serve as a single point-of-contact entity processing Medicare Part A and B claims from hospitals and other institutional providers, physicians, and other practitioners within the J12 region.  On March 5, 2008, CMS directed Highmark Medicare Services to commence MAC transition activities.

The Implementation Schedule below details the operational date for each phase of the implementation.  Highmark Medicare Services is working to make the transition as seamless as possible. Watch our transition website to keep up to date on what you need to do to prepare for the transition.

Highmark Medicare Services looks forwarding to serving you as your J12 MAC!

Note: Regardless of the date of service, all claims processing, customer service and claim payments will be processed by Highmark Medicare Services as of the Operational date listed above.