The AmeriHealth Provider News Center now features two new sections dedicated to information regarding the X12 Gateway transition and NaviNet transaction changes. We encourage you to visit these pages frequently for updated information. X12 Gateway Transition AmeriHealth will be migrating X12 transactions from our current X12 Gateway to the Highmark Gateway beginning in the second quarter of 2013. As a result of this transition, all trading partners will send/receive transactions to/from the Highmark Gateway. AmeriHealth will work with trading partners on new trading partner agreements, connectivity changes, and content changes. Visit the X12 Gateway Transition section to access a complete list of communications for trading partners and providers regarding the X12 Gateway transition. >> X12 Gateway Transition NaviNet^® Transaction Changes The NaviNet web portal will undergo a series of changes and enhancements that will affect the day-to-day operations of network providers. As early as the 4th quarter of this year, AmeriHealth providers will begin to see a difference in the look and feel of the provider portal, as well as in transaction functionality. Visit the NaviNet^® Transaction Changes section to access a complete list of communications regarding these changes. >> NaviNet^® Transaction Changes