< Back to Resource Library Enabling Interoperability with Patient Identity Management A master patient identifier is a key component to FHIR interoperability and providing a 1:1 match across the full patient record. Suggested For You Tower Health's Archiving Journey Improving Care Through Data Introducing Secure Record Delivery The Important Role Historical Records Play in the ER Working at Harmony Healthcare IT - Jim Boehm Was the Resource Helpful? Talk to the experts. Harmony Healthcare IT is an award-winning data management firm with a proven ability to extract, migrate and archive data with 100% integrity.