Healthcare delivery has evolved from physician-centered models toward integrated, team-based systems involving diverse medical and allied health professionals. This comprehensive review examines healthcare as a collaborative effort, highlighting the roles of physicians, nurses, pharmacists, diagnostic services, allied health professionals, and administrative and support teams across the continuum of care. Drawing on recent international literature, the review synthesizes evidence on how multidisciplinary collaboration enhances patient safety, clinical outcomes, care coordination, and system efficiency. Additionally, the review explores organizational, workforce, and digital enablers that support effective teamwork, including interprofessional education, leadership models, health information systems, and digital health technologies. By integrating evidence across medical disciplines, this review proposes a holistic framework that positions teamwork as a core determinant of healthcare quality and resilience. The findings emphasize that sustainable healthcare improvement requires coordinated professional roles, shared accountability, and system-level integration rather than isolated clinical excellence.