The Internet of Things (IoT) is transforming healthcare by enabling seamless patient-provider communication and real-time remote health monitoring. This chapter explores advanced IoT architectures, including edge computing and hybrid cloud models that enhance scalability, efficiency, and security. IoT systems, featuring wearable sensors and AI-powered analytics, provide timely insights for improved patient outcomes and cost reduction. Key challenges, such as data security and connectivity, are addressed with solutions like blockchain integration and energy-efficient devices. By fostering interoperability and personalized care, IoT bridges gaps among patients and service providers and paves the way for a more accessible and patient-centric healthcare ecosystem.