Patient Matching
The MPI uses probabilistic and deterministic matching to link records belonging to the same patient across systems, resolving inconsistent names, dates, and identifiers into one identity.
Custom Software
Healthcare Master Patient Index (MPI)
A healthcare master patient index (MPI), or enterprise MPI (EMPI), uniquely identifies each patient across systems by matching and linking records to a single golden record, preventing duplicates and misidentification. An MPI combines probabilistic and deterministic matching, duplicate and overlay detection, identity resolution, and data stewardship, so every system refers to the right patient, protecting safety, data quality, and interoperability across a fragmented healthcare environment.
When the same patient exists as different records across systems, care fragments and safety suffers, and an MPI resolves that by uniquely identifying each patient everywhere. Taction Software builds master patient index solutions that match, link, and steward patient identity accurately. We have delivered healthcare data engineering since 2013, and this builds on our broader healthcare software development practice.
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What Is a Master Patient Index
A master patient index (MPI) is a system that maintains a single, authoritative identity for each patient across all the systems an organization runs. Healthcare is fragmented: the same person appears in the EHR, billing, lab, and other systems, often with inconsistent names, dates, or identifiers, creating duplicate records and dangerous misidentification. An MPI, or enterprise MPI (EMPI) when spanning an enterprise, resolves this using probabilistic and deterministic matching to link records that belong to the same person into a golden record. It detects duplicates and overlays, supports data stewardship for uncertain matches, and gives every connected system a consistent patient identity. Accurate identity underpins safety, interoperability, and data quality, and it is essential for interoperability and unified data in a data lake.
Golden Record
It maintains a golden record, a single authoritative identity per patient, so every connected system refers to the same correct person consistently.
Duplicate Detection
It detects and resolves duplicate records, the same patient stored multiple times, which fragment care, distort data, and threaten patient safety.
Overlay Detection
It detects overlays, where two patients are wrongly merged into one record, a dangerous error the MPI surfaces for stewardship and correction.
Data Stewardship
It supports data stewardship workflows for uncertain matches, so human stewards resolve ambiguous cases the matching algorithms flag for review.
Cross-System Identity
It gives every connected system a consistent patient identity, underpinning safety, interoperability, and trustworthy data across the organization.
Core MPI Services
Taction Software builds MPI and EMPI solutions as a full engagement shaped to your systems, whether you are a health system, a health information exchange, or a payer. We map your systems, identity data, and matching challenges first, then build the MPI that fits. The consistent theme is accurate identity with stewardship, because matching is never perfect and human review of uncertain cases is essential. We build matching, golden record management, duplicate and overlay detection, and stewardship workflows, and connect identity to broader data solutions and quality practices.
01
Matching Engine
We build a matching engine using probabilistic and deterministic algorithms tuned to your data, so patient records link accurately despite inconsistent names, dates, and identifiers.
02
Golden Record Management
We build golden record management that maintains one authoritative identity per patient, so every system references the same correct person consistently.
03
Duplicate Resolution
We build duplicate detection and resolution, finding and merging records that represent the same patient to fragment care and data no longer.
04
Overlay Detection
We build overlay detection, surfacing records where two patients were wrongly merged, so these dangerous errors are corrected through stewardship.
05
Stewardship Workflows
We build data stewardship workflows, routing uncertain matches to human stewards, so ambiguous identity cases are resolved correctly rather than guessed, feeding trustworthy data cataloging.
06
System Integration
We integrate the MPI with EHR, billing, lab, and other systems via HL7 and FHIR, so consistent patient identity flows across the organization.
Benefits of a Master Patient Index
A well-built MPI delivers value that no single system can, because accurate patient identity underpins safety, quality, and interoperability everywhere. It prevents misidentification, a serious safety risk, by ensuring systems refer to the right patient. It eliminates duplicate records that fragment care and distort data. It catches dangerous overlays where patients are wrongly merged. A golden record gives clinicians and analytics a complete, correct view of each patient. Consistent identity enables interoperability and trustworthy unified data. Stewardship resolves the uncertain cases matching cannot. Together, these protect patient safety, improve data quality, and make interoperability and analytics reliable, because everything downstream depends on knowing exactly who the patient is.
Patient Safety
Accurate identity prevents misidentification, ensuring systems refer to the right patient, which protects safety in a fragmented healthcare environment.
Clean Data
Eliminating duplicate records removes the fragmentation and distortion that duplicates cause in clinical care and analytics alike.
Corrected Overlays
Detecting overlays catches dangerous cases where two patients were merged, protecting safety and data integrity through stewardship correction.
Complete Patient View
A golden record gives clinicians and analytics a complete, correct view of each patient across all systems and encounters.
Enabled Interoperability
Consistent patient identity underpins interoperability and trustworthy data exchange, because sharing data requires agreeing on who the patient is.
Trustworthy Analytics
Accurate identity makes analytics and AI reliable, since duplicated or misidentified patients distort every downstream metric and model.
Our MPI Process
Taction Software follows a safety-focused process refined across more than a decade of healthcare delivery. We begin by assessing your systems, identity data, duplicate rates, and matching challenges. We then design the matching approach, golden record model, stewardship workflows, and integrations, tuning matching to balance catching true matches against avoiding false merges, because both errors carry risk. Development runs in iterative sprints, and we integrate systems via HL7 and FHIR. We validate matching accuracy carefully against real data, measuring both missed matches and false merges, and we build stewardship for the cases algorithms cannot resolve. We support initial data cleanup, then ongoing operations. Throughout, we treat identity accuracy as a safety issue, because misidentification and wrongful merges both harm patients.
Identity Assessment
We assess systems, identity data, duplicate rates, and matching challenges, establishing where the MPI must resolve fragmentation and risk first.
Matching Design
We design matching, the golden record model, and stewardship, tuning algorithms to balance catching true matches against avoiding false merges.
Iterative Development
We build matching, golden record, and stewardship in sprints, integrating systems via HL7 and FHIR so identity flows consistently.
Accuracy Validation
We validate matching accuracy against real data, measuring missed matches and false merges, because both errors carry patient-safety risk.
Data Cleanup
We support initial duplicate and overlay cleanup, resolving existing identity problems before the MPI governs ongoing identity.
Ongoing Operations
We support ongoing stewardship and operations, so identity stays accurate as new records and systems are added over time.
Technology and Compliance
An MPI governs sensitive patient identity data that underpins safety, so accuracy, security, and stewardship are foundational. Taction Software builds on a HIPAA-aligned foundation, with encryption, access controls, audit logging, and Business Associate Agreements where applicable. Our architecture supports cloud deployment and integrates with EHR, billing, and other systems via HL7 and FHIR, so consistent identity flows organization-wide. We build probabilistic and deterministic matching tuned to balance sensitivity against false merges, because both missed matches and wrongful merges harm patients. We build stewardship for uncertain cases, because no algorithm is perfect and human review is essential. We validate matching accuracy against real data before the MPI is relied upon, measuring both error types, because identity accuracy is fundamentally a patient-safety matter.
HIPAA-Aligned Security
Encryption, access controls, and BAAs protect the sensitive patient identity data the MPI matches, links, and stores.
HL7 and FHIR Integration
We integrate EHR, billing, and other systems via HL7 and FHIR, so consistent patient identity flows across the organization.
Tuned Matching Algorithms
We build probabilistic and deterministic matching tuned to balance catching true matches against avoiding false merges, since both errors carry risk.
Stewardship Support
We build stewardship for uncertain matches, because algorithms are imperfect and human review resolves the ambiguous identity cases they flag.
Validated Accuracy
We validate matching accuracy against real data, measuring missed matches and false merges, before the MPI governs identity in production.
Safety-First Design
We treat identity accuracy as a patient-safety matter, because misidentification and wrongful merges both directly endanger patients.
Why Choose Taction Software
Taction Software is a US-based healthcare software company founded in 2013, with offices in Chicago, Cheyenne, Austin, and Sacramento. We build healthcare software exclusively, so identity, interoperability, and compliance are part of our default process rather than afterthoughts. We have delivered more than 200 healthcare projects, including EHR and EMR platforms such as Voyant Health, FDA-registered mobile applications, and behavioral health tools. That data and interoperability depth matters in an MPI, where matching accuracy and stewardship determine patient safety and data trust. We work as a safety-focused partner, tuning matching carefully and building the stewardship that imperfect algorithms require.
01
Healthcare Specialization
We build healthcare software only, so identity, interoperability, and compliance are built into our MPI work from the start.
02
Data and Interoperability Depth
We integrate systems via HL7 and FHIR and handle complex identity data, so patient identity flows accurately across the organization.
03
Matching Expertise
We tune probabilistic and deterministic matching to balance sensitivity against false merges, because both error types harm patients.
04
Stewardship Focus
We build stewardship for uncertain cases, because accurate identity requires human review of what algorithms cannot resolve.
05
US-Based Team
US offices and US-based delivery support close collaboration and clear accountability on safety-critical identity work.
06
Long-Term Partnership
We keep identity accurate as new records and systems are added, maintaining the MPI over time.
Pricing
MPI pricing depends on scope, systems, data volume, and cleanup needs. Taction Software scopes each engagement to your organization, and typical ranges are as follows. A focused build or MVP, such as a matching engine and golden record for core systems, generally falls between $40,000 and $80,000. A full MPI/EMPI with matching, stewardship, duplicate and overlay resolution, and integrations typically ranges from $80,000 to $200,000. Enterprise deployments across many systems with extensive cleanup start at $200,000 and up. Initial data cleanup is scoped explicitly. Final pricing follows a discovery phase that assesses identity data and systems. We provide clear, itemized estimates so you can establish accurate identity in stages.
MVP or Build
A matching engine and golden record for core systems typically ranges from $40,000 to $80,000, establishing accurate identity before broader rollout.
Full MPI
A complete MPI/EMPI with stewardship and resolution typically ranges from $80,000 to $200,000, covering accurate identity across systems.
Enterprise
Many-system deployments with extensive cleanup start at $200,000 and up, unifying patient identity across the enterprise.
What Drives Cost
Number of systems, data volume, duplicate rates, and cleanup drive MPI cost more than record count alone.
Cleanup Scoped Separately
Initial duplicate and overlay cleanup is scoped explicitly, since resolving existing identity problems is often significant work.
Estimate Process
A short discovery phase assessing identity data and systems produces an itemized, fixed-scope estimate before development begins.
Get Started
Ready to ensure every system refers to the right patient? Taction Software will assess your identity data, scope the right build, and deliver a HIPAA-compliant healthcare MPI with accurate matching and stewardship on a realistic timeline. Contact us to schedule a discovery call and receive an itemized estimate.
FAQs
Frequently Asked Questions
A master patient index (MPI), or enterprise MPI (EMPI), uniquely identifies each patient across systems by matching and linking records to a single golden record. It uses probabilistic and deterministic matching, detects duplicates and overlays, and supports stewardship, so every system refers to the right patient, protecting safety, data quality, and interoperability.
Healthcare is fragmented, so the same patient appears in many systems with inconsistent data, creating duplicate records and dangerous misidentification. An MPI resolves this into one accurate identity, which protects patient safety, cleans data, and enables interoperability and trustworthy analytics, all of which depend on knowing exactly who the patient is.
An MPI manages patient identity, often within one system or organization, while an enterprise MPI (EMPI) spans multiple systems or organizations, such as across a health system or a health information exchange. The matching, golden record, and stewardship principles are the same; the EMPI simply operates at broader scale.
Matching uses probabilistic and deterministic algorithms tuned to balance catching true matches against avoiding false merges, since both errors carry patient-safety risk. No algorithm is perfect, so Taction Software builds stewardship for uncertain cases and validates accuracy against real data before the MPI is relied upon.
A properly built MPI is HIPAA-compliant. Taction Software includes encryption, access controls, audit logging, and Business Associate Agreements, and validates security before launch. Because the MPI governs sensitive patient identity data, compliance is engineered into the architecture.
Cost depends on scope. A matching engine and golden record for core systems typically ranges from $40,000 to $80,000, a full MPI/EMPI with stewardship and resolution from $80,000 to $200,000, and many-system enterprise deployments start at $200,000 and up. Cleanup is scoped separately. A discovery phase produces an itemized estimate.