A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

What is Master Data Management (MDM)

Last updated: Nov 26, 2025

Glossary › Master Data Management (MDM)

Master Data Management (MDM) Definition

MDM is the technical "Engine" that powers a Single Source of Truth. For Payer and Health System Executives, MDM is the strategic solution for managing "Golden Records." In a typical environment, a provider might exist in five different systems with slightly different names or addresses. The MDM software uses "Matching and Merging" logic to identify that these five records belong to the same person, creating a single, authoritative "Master Record." Operationally, MDM handles the "Conflict Resolution"—if System A says the phone number is 123-4567 and System B says it's 123-9999, the MDM uses "Survivorship Rules" to decide which one is the most trustworthy. This centralized intelligence is vital for high-scale operations that need to manage hundreds of thousands of provider records without manual intervention.

FAQs

What are "Survivorship Rules" in MDM?

These are rules that determine which data source "wins" (survives) when there is a conflict. For example, a "Credentialing Source" might always override a "Claims Source" for specialty data.

How does MDM reduce "Duplicate Records"?

By using "Fuzzy Matching" algorithms to find records with similar names, NPIs, and locations, and suggesting they be "merged" into one.

Why is MDM essential for Health System Mergers?

It allows the newly combined organization to quickly identify duplicate providers across the two legacy systems, ensuring a clean, unified roster for the new entity.

Medicare-Advantage-Directory-Compliance-Guide

The REAL Health Providers Act: Compliance Guide

Your practical guide to the five new federal requirements for MA provider directory accuracy.