Skip to content
Search to learn about InterSystems products and solutions, career opportunities, and more.

Boost Identity Data Quality with a Next-Generation EMPI

Reconcile and Link Patient and Member Records Across Disparate Systems

High-Quality Data Improves Care Delivery and Business Performance

Digital transformation has revolutionised healthcare, but it has also created significant identity data management challenges for healthcare providers and payers. Most healthcare organisations (HCOs) leverage a diverse collection of clinical and business systems including EHR platforms, pharmacy and lab software, appointment scheduling applications, CRM solutions, and billing and payment tools, each with unique record identifiers.

Reconciling patient and member records across or even within systems is a daunting proposition for many HCOs. Name changes, address updates, formatting discrepancies, spelling mistakes, and other irregularities often lead to duplicates (multiple entries created for the same person) or overlays (data for multiple individuals merged into the same record). In fact, according to an AHIMA survey, up to 20% of all medical records are duplicates.¹

Identity data inconsistencies and gaps can lead to:

  • Diminished care quality and patient safety – incorrect patient matching can result in mishaps such as administering the wrong medication to a patient
  • Treatment and reimbursement delays – 35% of all denied claims result from inaccurate patient identification or information²
  • Negative business consequences – erroneous risk and quality measurement data can undermine value-based care payment models and impact the bottom line
  • Excess expenses for providers, payers, and patients – the average cost of repeated medical care because of duplicate records is $1,950 per inpatient stay and over $1,700 per ED visit²
  • Inaccurate AI models – clean and accurate identity data is essential for predictive analytics, personalised medicine, intelligent clinical decision support solutions, prior authorisation claims analysis, and other AI initiatives
  • Costly regulatory fines and legal settlements – from accidental disclosure of health information to the wrong patient to sharing the wrong information in fulfilment of interoperability mandates
  • Lost IT productivity – IT organisations can squander time and resources manually cleaning data and de-duplicating records
Barry Runyon
Research VP, Gartner4

EMPIs Eliminate Identity Data Gaps, Inconsistencies, and Inefficiencies

Enterprise master person index³ (EMPI) solutions help HCOs reconcile patient and member records across disparate systems. EMPIs match and link records from various sources, providing a uniform, uniquely identified record for each person. They are critical for high-trust industries such as healthcare where making the right match is essential. They are also critical for data analytics and AI applications, which rely on clean and accurate identity information.

EMPI matches two distinct records

EMPIs help organisations improve care quality and business performance by eliminating duplicate and overlaid records and reducing mistakes and inefficiencies. They provide a single source of truth for identity data that is accurate, complete, and current. HCOs can use EMPIs to improve data quality and governance, comply with interoperability and information sharing regulations like CMS-0057-F, reduce medical errors, avoid duplicate diagnostic and lab procedures, boost IT productivity, increase data insights, streamline M&A integrations, and much more.

EMPI Benefits and Use Cases
  • Improve identity data quality
  • Enhance revenue cycle management
  • Streamline interoperability and data exchange
  • Unlock the full potential of AI

Traditional EMPIs use deterministic and probabilistic matching algorithms to identify and consolidate records belonging to the same person. Deterministic algorithms look for exact matches of specific data elements like name, date of birth, or social security number. If all criteria match, the records are deemed to belong to the same individual.

Probabilistic algorithms use statistical models to determine the likelihood that two records belong to the same person. These algorithms assign a score indicating the probability of a match based on similarities in multiple attributes.

Next-generation EMPIs support advanced referential matching functionality to enhance identity data accuracy and completeness even further. Referential matching verifies a person’s identity, fills in gaps, and resolves data discrepancies by cross-referencing records with external identity proofing services or authoritative data sources such as government databases, telephone directories, or credit reporting agencies. Referential matching helps ensure records are complete, error-free, and up-to-date.4

Choosing the Right EMPI Solution

Not all EMPI solutions are the same. When evaluating options, look for a solution that offers:

  • Comprehensive matching capabilities – supports a variety of algorithms and approaches including referential matching
  • Built-in automation tools – lets you match and reconcile records automatically
  • A customized rules engine – provides configurable, site-specific logic for matching or alerting
  • Robust integration functionality – supports a wide range of systems standards-based APIs (HL7® v2, FHIR®, etc.)
  • Flexible deployment models – can be implemented in a public cloud, on-premises, or as a managed service
  • Regulatory compliance – adheres to security frameworks like HITRUST and data privacy regulations like HIPAA

Be sure to choose a solution provider with extensive healthcare data and records management experience and expertise.


1 - AHIMA survey of US healthcare industry professionals
2 - Black Book Market Research
3 - Also known as an enterprise master patient index
4 - Innovation Insight for Next-Generation Enterprise Master Patient Index. Gartner. 11 September 2024 - ID G00758255

Other Resources You Might Like

Apr 15, 2025
Enterprise Master Person Index
Next-Generation Enterprise Master Person Index for Identity Management Seamless patient, member, and beneficiary identification is essential for efficient operations across healthcare organisations and government agencies. Yet, fragmented systems, inconsistent identifiers, and data gaps continue to disrupt workflows, increase costs, and compromise care quality and service delivery. 35% of denied medical claims stem from inaccurate patient identification¹, while mergers and affiliations further complicate record consolidation. Even within a single information system, duplicate or overlaid records can introduce inefficiencies and risks; by creating costly administrative burdens and compromising the accuracy of AI workflows built on unreliable data. To maintain data integrity and prevent cascading errors, organisations must be able to detect problematic records in real time and trigger corrective actions.
Apr 07, 2025
A Digital Front Door Solution
A Digital Front Door Solution Successful healthcare organisations (HCOs) understand that patient engagement is fundamental. Patients who are well-informed about their conditions and treatment options make better decisions. By empowering patients to take an active role in their healthcare, HCOs can improve patient outcomes, satisfaction, and loyalty.
Apr 04, 2025
Optimizing Analytics Development in Financial Services
Smarter Processes, Smarter Decisions
Apr 04, 2025
Real-time Visibility & Integrated Decision Intelligence
Risk management has evolved beyond just mitigating threats—strong risk management practices can be a competitive advantage. In today’s volatile markets, asset managers are tasked with navigating unprecedented complexity, adapting to tighter regulations, and leveraging data to build resilience and drive growth. Yet, traditional methods fall short, leaving many struggling with disjointed systems, siloed data, and delayed insights.
Apr 02, 2025
IDC Spotlight Report
Increased capabilities in supply chain management and decision intelligence tools, along with complex tech stacks, have put a premium on the ability to integrate, synthesise, and use disparate data for faster transformations and long-living business benefits.
Apr 02, 2025
A cloud-based FHIR to OMOP solution for real-world data
Cloud-Based, On-Demand Access to Secure Patient Data Nationwide
Mar 19, 2025
Supply Chain
See how InterSystems Supply Chain Orchestrator™ improves supply chain operations with real-time, actionable data. Supply Chain Orchestrator includes an extensible data model, integration engine, and API framework that allow you to create real-time, full-stack applications for order processing, issue processing, demand forecasting, and more.
Mar 18, 2025
InterSystems Data Fabric Studio - Supply Chain
Data Fabric Studio makes it easy to access accurate, consistent, and reliable data faster, and enables better-informed decision-making across your entire supply chain.

Take The Next Step

We’d love to talk. Fill in some details and we’ll be in touch.
*Required Fields
Highlighted fields are required
*Required Fields
Highlighted fields are required
** By selecting yes, you give consent to be contacted for news, updates and other marketing purposes related to existing and future InterSystems products and events. In addition, you consent to your business contact information being entered into our CRM solution that is hosted in the United States, but maintained consistent with applicable data protection laws.