There is currently no standard definition of managed care, but it can best be described as a combination of insurance and a health care delivery system. The basic goal of managed care is to coordinate all health care services received to maximize benefits and minimize costs. Managed care plans use their own network of health care providers and a system of prior approval from a primary care doctor in order to achieve this goal. Providers include: specialists, hospitals, skilled nursing facilities, therapists, and home health care agencies.