Rapid urbanization, population density, lifestyle-related disorders, and unequal healthcare accessibility have intensified the demand for integrated and sustainable healthcare systems in urban communities. This study proposes a Sustainable Comprehensive Health Hub (SCHH) model designed to address preventive, curative, rehabilitative, and digital healthcare needs within urban environments. The research integrates principles of sustainability, public health management, smart healthcare technologies, and community-centered service delivery to formulate an inclusive healthcare infrastructure framework. A mixed-method research design was adopted, combining qualitative insights from healthcare professionals and quantitative survey responses collected from 320 urban residents across metropolitan regions. Statistical tools including regression analysis, factor analysis, and correlation analysis were applied to examine relationships between healthcare accessibility, digital integration, environmental sustainability, and patient satisfaction. Findings indicate that accessibility, telemedicine integration, preventive health awareness, and green infrastructure significantly influence community health outcomes and healthcare utilization efficiency. The proposed SCHH model demonstrates strong potential for reducing healthcare disparities, optimizing operational costs, and enhancing urban public health resilience. The study contributes to healthcare management literature by offering a scalable and policy-oriented framework suitable for smart cities and sustainable urban development agendas. The research further recommends multi-stakeholder collaboration, digital healthcare expansion, and public-private partnerships for successful implementation. This model may assist policymakers, urban planners, healthcare administrators, and sustainability practitioners in developing resilient urban healthcare ecosystems aligned with future healthcare demands.