Electronic health records is a multi-stakeholder-driven ecosystem that serves different e-health services. For blurring borders between different EHRs, healthcare interoperability standards are needed to exchange information between different levels of healthcare. Healthcare interoperability standards ensure different healthcare systems, can exchange, interpret, and use data seamlessly. These standards enable effective communication between healthcare providers and improve patient care. Interoperability issues usually pass the interoperability of localized hospital information systems. Consequently, there is a need for a universal health system that manages shared stakeholders' objectives. On the other hand, microservices architecture can enable communication between various EHRs and strengthen the continuity of care which is one of the main justifications for interoperability in EHRs. A primary contribution of this work is the development of a unified, multipurpose microservice-based health information system framework aimed at improving the provision of healthcare services. This adaptable architectural framework which is based on Couchbase delivers a range of services that can be effectively tailored to different application demands and the specific needs of healthcare participants.