An organization of affiliated providers offering joint health care services to subscribers is known as?

The term that best fits the description of an organization of affiliated providers offering joint health care services to subscribers is an integrated delivery system. This type of organization encompasses a network of providers who come together to deliver a continuum of care to patients, ensuring that various health services—such as preventive care, acute care, and rehabilitation—are coordinated effectively.

An integrated delivery system typically aims to improve the quality and efficiency of care, reduce costs, and enhance patient satisfaction. It allows for a more streamlined approach to health services as various providers collaborate under a shared management structure, often leading to improved patient outcomes due to better coordination of services.

In contrast, other options such as exclusive provider organizations and independent practice associations do have affiliations among providers, but they do not necessarily emphasize the same extent of joint services or integrated care that an integrated delivery system does. A Medicare risk program refers to a specific arrangement in which healthcare providers assume financial risk for patient care under Medicare, which does not directly align with the description given in the question.