What is a master patient index (MPI)?

The master patient index (MPI) plays a crucial role in healthcare data management by serving as a centralized database that maintains unique patient identifiers. This allows healthcare organizations to accurately link patients with their respective health records, ensuring that each individual's data is consolidated under a single, unique identifier. Establishing a comprehensive MPI is essential for improving interoperability, continuity of care, and reducing duplicate records, thereby enhancing overall patient safety and data accuracy.

The primary function of the MPI is to facilitate quick and reliable access to patient information across various departments and healthcare facilities, which is vital for patient care. By having a robust system for managing patient identifiers, healthcare providers can ensure that appropriate medical records are retrieved efficiently, minimizing errors and improving the quality of care.

Understanding the MPI is fundamental in recognizing how healthcare organizations manage patient data effectively, prioritize patient privacy, and support health information exchange initiatives.