In the context of increasingly complex and resource-constrained healthcare ecosystems, the need for efficient and secure management of patient data is paramount. While traditional approaches involving health record management systems and insurance frameworks offer a foundation, the integration of Internet-of-Things (IoT) devices presents novel challenges in data security and access control. This research addresses these concerns by proposing a blockchain-based architecture specifically designed to secure IoT-enabled healthcare systems while balancing the blockchain trilemma of scalability, security, and decentralization. We propose a robust permissioned blockchain architecture based on Hyperledger Fabric that ensures personal data in the Healthcare Record System (HRS) remains confidential and accessible only to authorized users. This architecture integrates smart contracts for data control, guaranteeing compliance with the GDPR. We used the Caliper benchmarking tool to evaluate the performance of our architecture, carrying out different scenarios with various configurations. Results demonstrate the scalability and effectiveness of our solution, optimizing performance metrics such as latency and throughput.