Highmark Medicare Services - A CMS Contractor - ISO 9001:2000 Certified

J12 MAC Transition
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Highmark Medicare Services' mission is to ensure a smooth transition of Electronic Data Interchange (EDI) and other system related activities for all providers and their clearinghouses to the J12 MAC environment. Detailed EDI and system impacts will be shared with you on this webpage as they become available.

EDI Transition Newsletters Affecting MD/DCMA/DE Part BDate
 MD/DCMA/DE Part B: EDI Transition News - April 2008 04.28.2008
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