Final answer:
Approximately 80% of hospitals in the United States are nonprofit health organizations, which do not operate to make a profit but to serve the community.
Step-by-step explanation:
Voluntary hospitals, which are nonprofit health organizations, constitute a significant portion of health care facilities in the United States. These hospitals are not designed to make a profit but rather provide care as a service to the community. According to statistics, about 80% of hospitals in the U.S. are operated as not-for-profit entities. This contrasts with the fact that most physicians' offices are for-profit. The US health care system is unique, with government programs like Medicare and Medicaid providing insurance to a considerable portion of the population. Yet, a significant number of Americans receive health insurance through their employer, illustrating the blend of public and private hospital services that characterizes the US health care landscape.