A hospital is most commonly a nonprofit organization, though hospitals also operate as for-profit corporations and government-run public institutions. Of the 4,644 Medicare-enrolled hospitals in the United States, about 49% are nonprofit, 36% are for-profit, and 15% are government-owned. Beyond ownership, hospitals are further classified by the level of care they provide, whether they train doctors, and whether they operate independently or as part of a larger health system.
The Three Ownership Categories
Every hospital falls into one of three ownership types, and each one shapes how the organization handles revenue, governance, and its obligations to the community.
Nonprofit hospitals make up the largest share of U.S. hospitals. They are tax-exempt under Section 501(c)(3) of the Internal Revenue Code, which means they pay no federal income tax and, in most states, no property tax. In exchange, they must meet what the IRS calls the “community benefit standard”: the hospital must promote the health of a broad enough class of people to benefit the community, not just a private group. Nonprofit hospitals can and do generate surplus revenue, but none of that money can be distributed to individuals or shareholders. If the organization dissolves, its assets must go to another charitable purpose.
For-profit hospitals are investor-owned corporations. They operate like other businesses, with shareholders who expect a return on their investment. These hospitals pay taxes and are often part of large national chains. About 36% of Medicare-enrolled hospitals fall into this category. For-profit hospitals tend to be concentrated in certain regions and often focus on service lines that generate higher margins, such as elective surgery and cardiac care.
Government hospitals are owned and operated by federal, state, or local governments. This category includes Veterans Affairs (VA) hospitals, county hospitals, and public safety-net hospitals that serve large uninsured populations. At roughly 15% of all hospitals, they represent the smallest ownership group but play a critical role in providing care to communities that might otherwise go without it.
How Hospitals Are Governed
Regardless of ownership, hospitals share a common governance structure built around three pillars: a governing board, an administrative leadership team, and a medical staff organization. The governing board, often called the Board of Trustees or Board of Directors, sits at the top. It holds legal responsibility for the hospital’s operations, finances, and quality of care. Board membership typically includes the CEO, the president of the medical staff, the chief nursing executive, and community representatives.
Below the board, the CEO and senior administrators handle day-to-day operations: budgets, staffing, facilities, and compliance. Running parallel to this administrative chain is the medical staff structure, sometimes called a medical staff council or medical advisory committee. This body gives physicians a formal role in clinical decision-making. While the administrative side is legally responsible for monitoring quality and safety, it delegates much of that authority to the medical staff organization, which oversees clinical departments and credentialing. This dual authority structure, where administrators and physicians share power, is one of the things that makes hospital governance more complex than most other organizations.
Classification by Level of Care
Hospitals are also categorized by the complexity of services they offer, which generally falls into three tiers.
First-level hospitals are the smallest and simplest. They typically have 50 to 250 beds and a handful of core specialties: internal medicine, general surgery, obstetrics, and pediatrics. You might see these called community hospitals, district hospitals, or rural hospitals. Laboratory services are basic, and patients needing advanced care get transferred to a higher-level facility.
Second-level hospitals are larger, with 200 to 800 beds and five to ten clinical specialties. These are often regional or county hospitals that serve as referral centers for smaller facilities in the surrounding area.
Third-level hospitals sit at the top. They have 300 to 1,500 beds and offer highly specialized services like cardiology, neurosurgery, and intensive care with advanced imaging technology. These are often academic medical centers affiliated with universities, and many of them conduct biomedical research alongside patient care.
Teaching Hospitals vs. Community Hospitals
Teaching hospitals are organizationally distinct from standard community hospitals in several important ways. A major teaching hospital is typically affiliated with a medical school, belongs to the Council of Teaching Hospitals, and maintains a high ratio of medical residents to patient beds. These institutions train the next generation of doctors, conduct clinical research, and tend to treat rare diseases and the most complex patients. They also often serve as safety-net providers for uninsured and low-income populations, particularly public teaching hospitals.
This comes at a cost. Teaching hospitals historically charge more for care, partly because training and research add overhead. Medicare compensates for this through supplemental payments specifically designed to support medical education. In the late 1990s, only about 115 U.S. hospitals were part of academic health centers, with another 222 classified as major teaching hospitals and 606 as minor teaching hospitals, compared to nearly 4,000 nonteaching hospitals. So while teaching hospitals get a lot of attention, they represent a small fraction of the total.
Independent Hospitals vs. Health Systems
A growing distinction in how hospitals are organized is whether they operate independently or belong to a health system. Independent hospitals have no system affiliation and tend to be smaller: about 48% have fewer than 50 beds, and more than half are in rural areas. They are more likely to be publicly owned (37% vs. 6% for system hospitals) and less likely to be teaching institutions.
Centralized health system hospitals, by contrast, are part of larger networks with shared physician arrangements and insurance products. These hospitals skew larger (46% have 200 or more beds), are overwhelmingly private nonprofit (93%), and are more often located in urban areas. About 39% are teaching hospitals. Research from the Agency for Healthcare Research and Quality found that system-affiliated hospitals had lower risk-adjusted mortality rates for five of six major conditions studied, including heart attack, heart failure, stroke, pneumonia, and gastrointestinal bleeding. Average costs per stay were nearly identical between the two types, at roughly $11,000.
The trend toward system consolidation has accelerated in recent decades. Many hospitals that were once independent have merged into regional or national networks, driven by financial pressures, the complexity of modern healthcare regulation, and the infrastructure demands of electronic health records and quality reporting.
Accreditation and Regulatory Oversight
No matter what type of organization a hospital is, it operates under layers of regulation. The most prominent accrediting body is the Joint Commission, a private nonprofit founded in 1951 that evaluates hospitals against detailed performance standards covering everything from patient safety to infection control. Joint Commission accreditation is voluntary but nearly universal among U.S. hospitals, in part because Medicare ties reimbursement eligibility to accreditation status. State health departments also license and inspect hospitals, and the Centers for Medicare and Medicaid Services sets conditions of participation that hospitals must meet to receive federal funding.