< 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 Introducing HealthData Locker™ Not All Legacy Application and Archiving Solutions Are Created Equal Archiver of Archives Introducing HealthData AR Manager HITshow: New Records Release Service 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.