Designing a National-Scale FHIR API Ecosystem Using Apigee: Architecture Patterns for Secure Healthcare Interoperability

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Although electronic health records (EHR) have been widely adopted over the last couple of decades, a significant challenge persists: essential patient information often remains trapped within individual hospital systems. Examples include a cardiologist struggling to access recent lab results from a primary care physician, or an emergency room doctor having difficulty compiling a complete medication history. To address this data fragmentation and improve interoperability, the article discusses utilizing architecture patterns—specifically building a national-scale API ecosystem using FHIR APIs and platforms like Apigee. This approach aims to securely and efficiently connect disparate medical data sources into a cohesive system for better patient care coordination.