Open Enterprise Master Patient Index (OpenEMPI) is an open source implementation of an Enterprise Master Patient (EMPI) which is a repository that maintains a registry of all patients across an enterprise. An EMPI provides many benefits including:
- Maintains a central registry of all patients and their demographics, assigning a unique identifier to each patient
- Eliminates duplicate patient registration entries that result due to changes in patient demographics (patient moved to another location), data entry errors during patient registration, or missing demographic information.
- Provides record locator service by enabling physicians across the enterprise to identify which health care providers a patient has visited
OpenEMPI is a reference tool used for the client registry component of OpenHIE.