What Is the Difference Between a PHR and an EMR?

The digitization of health information has created a complex landscape for managing medical records. Terms like Electronic Medical Record (EMR) and Personal Health Record (PHR) represent distinct systems with fundamentally different purposes and controls. Understanding the differences between these two digital systems is important for both patients and healthcare providers. The distinction centers on who creates the data, who controls it, and the primary function each record serves.

Defining the Records: EMR vs. PHR Content

The Electronic Medical Record (EMR) is a digital chart used by a single healthcare provider, such as a doctor’s office or a specific hospital. This system holds comprehensive clinical data generated during a patient’s visit or stay at that location. EMR content includes detailed physician notes, orders for treatment, lab and imaging results, and prescription information created by the provider. It also contains administrative data like billing and scheduling details that streamline the internal operations of the practice.

The Personal Health Record (PHR) is managed and maintained by the patient. The PHR often contains copies of clinical information from an EMR, but its main feature is the inclusion of patient-generated data. This involves self-reported symptoms, demographic information, and data from personal wellness devices like fitness trackers or home blood pressure monitors. The PHR’s content is typically a lifelong compilation of health information from multiple sources, designed to be comprehensive and patient-centric.

Ownership, Control, and Data Access

The EMR is legally owned and controlled by the healthcare provider or institution that generated the data. The provider is considered the legal custodian of the record, dictating how the system is managed and accessed within their facility. While patients have a right to access and request copies of their medical data, they cannot directly edit the official EMR file.

The PHR is owned and managed entirely by the individual patient. The patient decides what information to include, how to organize it, and who is allowed to view it. This patient-centric control allows for flexible sharing, where the individual can authorize or deny access to any part of the data to specific users or providers. Since PHRs are often held outside of the traditional healthcare system, the security and privacy of the data depend on the vendor’s policies rather than federal healthcare regulations.

Data in a PHR is considered the property of the patient, giving them the authority to share it across different care settings without institutional barriers. In the EMR, the facility maintains control over the data’s transmission and storage. The patient’s right to control their PHR promotes greater engagement with their health management.

Primary Function and Scope

The Electronic Medical Record serves a clinical and administrative function for the provider. Its scope is limited to improving the efficiency of care and documentation within the single practice or institution. EMRs are used for immediate treatment, supporting clinical decision-making, streamlining administrative tasks, and facilitating billing. Because EMR systems are often siloed, they lack high interoperability with systems outside of that specific facility.

The Personal Health Record focuses on patient empowerment, long-term health tracking, and continuity of care. The PHR is designed to be life-long and provider-agnostic, enabling patients to coordinate their health journey across numerous providers. Patients use the PHR to manage chronic conditions, track health goals, and ensure that every doctor has access to a complete record. Its broad scope facilitates communication and better-informed decisions by presenting a holistic view of the individual’s health history gathered from diverse sources.