Phase 1, Reference Implementation Routing based on advanced knowledge of Direct Address (no central lookup) Each pilot site or its EHR vendor responsible for supplying providers' information in MS-Excel spreadsheet MedAllies merge all provider lists obtained for each pilot site, and create/maintain the master provider directory Master provider directory list distributed to all pilot sites, out-of-band Pilot site's EHR vendor integrate relevant providers' list in their application from which users select 'intended recipient' for their clinical messages Intended Recipient triggers HISP centralized routing 27
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