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A large US Health System has been deploying and operating a legacy EMPI and Integration solution for nearly 10 years across their organization in an attempt for a single consolidated version of every patient from their systems that includes dozens of hospitals in multiple states. In addition to the complex deployment of the EMPI across their many EMRs, the health system created a comprehensive data stewardship and HIM program leveraging a large manual data stewardship team to remediate the data and resolve ambiguous links identified by the legacy EMPI.

Verato provided resolution and corrections for suspect matches, missed matches, and over matches to enable a complete person record powering their digital engagement program.

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Automatic resolution of over 50% of the “suspect match” tasks compared to their legacy EMPI

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3.6M redundant records representing 1.7M unique people

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Over 5,000 high-probability false positives existed in their legacy EMPI


This large health system is rolling out a digital engagement program in which any person who has received care from their network would be able to see all their medical records from across all hospitals and both within and across EMRs.

Therefore, the accuracy of the underlying clinical records and the creation of an enterprise view of the patient was paramount beyond patient safety

However, throughout the deployment of the legacy EMPI across their large hospital network spanning different geographical regions representing tens of millions of unique patients, the legacy EMPI has struggled with identity accuracy which has led to both a growing task queue of suspect linkages and duplicates and the possibility of significant incorrect matches (i.e. “false positives”).

Despite efforts to remediate the data using steward resources from the data stewardship team to manually review and resolve the legacy EMPI’s task queue and the pace of the task creation was growing beyond their ability to resolve.

As a result, their digital engagement program was at risk due to the identity challenges with the legacy EMPI. There were concerns that some patients might not see their complete medical history due to duplication and multiple records and more importantly, others might see data for a different patient due to the legacy EMPI’s incorrect matching of different patients together.

After the initial processing and project step, Verato was able to deliver results that dramatically improved the accuracy of their identity data substantially while enabling a successful strategy for their digital engagement business initiatives.


This health system partnered with Verato to use the industry’s first healthcare master data management platform, Verato hMDM™ to process all their data from their legacy master patient index, and all their hospitals to not only resolve the suspect matches but to identify both new (missed) matches and the over matches, or false positives.

As the market leader in identity, Verato has pioneered a next-generation, patented approach to referential matching and provides a comprehensive EMPI and broader master data management solution all in one. The first phase of the health system’s partnership with Verato focused on analyzing the legacy EMPI’s performance in comparison to Verato and providing the resolutions and corrections to resolve both suspect, missed, and overmatches.


Better insights

After implementing the first phase of Verato, this health system was able to measure their patient data quality issues compared to its legacy EMPI solution. Through this comparison, this health system gained a deeper understanding of the impact Verato provides to their organization.