The concept of combining health care with the financing of services provided is called:

Managed care is a health care delivery system that combines the financing and provision of health care services. It aims to reduce costs while maintaining quality of care through various strategies, such as negotiating fees with providers and implementing care coordination. Managed care organizations often have specific networks of providers that beneficiaries must utilize to receive full benefits, which helps control expenses and streamline services.

This approach contrasts with other options listed, such as utilization review, which focuses on evaluating the necessity and efficiency of health care services, and capitation, a payment arrangement where providers are paid a set amount per patient regardless of the services provided. Quality assurance refers to the systematic monitoring and evaluation of the quality of health care services to ensure that standards are met. These options do not encompass the idea of integrating service provision and financing, which is why managed care is the most fitting answer.