Inbound ePrescribing (IEP) Implementation Guide (Dept. of VA)

When the eR x is sent from the Processing Hub down to VistA, the IEP system utilizes the NPI Institution in the OUTPATIENT SITE file (#59) to identify the correct Department of Veterans Affairs (VA) pharmacy. The VA pharmacy identified as the NPI Institution is a pointer to the INSTITUTION file (#4). ................
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