Top 10 largest health systems in the U.S.

The U.S. healthcare landscape is dominated by large health systems that encompass numerous hospitals, clinics, and specialized care facilities. These systems are often ranked by various metrics, including total revenue, number of hospitals, or total staffed beds. Based on recent data (primarily from 2024 and late 2023 financial reports where available), here are some of the largest health systems in the U.S.:

Kaiser Permanente: Consistently one of the largest, especially when considering its integrated care model that combines health insurance with healthcare delivery. It boasts substantial operating revenue and a significant number of hospitals and medical offices.

HCA Healthcare: A prominent for-profit system, HCA Healthcare operates a vast network of hospitals across multiple states, making it a leader in terms of both hospital count and total staffed beds.

CommonSpirit Health: Formed from the merger of Catholic Health Initiatives and Dignity Health, CommonSpirit Health is a large non-profit Catholic health system with a wide geographical reach and a substantial number of hospitals and beds.

Advocate Health: A large non-profit health system with a significant presence and considerable revenue.

Providence St. Joseph Health: Another large non-profit Catholic health system, Providence St. Joseph Health serves numerous communities across several states.

UPMC (University of Pittsburgh Medical Center): A major integrated health system and insurer based in Pennsylvania, UPMC is known for its extensive network of hospitals and diverse healthcare services.

Ascension: As one of the largest non-profit health systems in the U.S., Ascension operates in many states, providing a broad range of care.

Trinity Health: A national Catholic health system, Trinity Health operates in many states, offering a comprehensive suite of healthcare services.

Tenet Healthcare: A diversified healthcare services company, Tenet Healthcare operates acute care and specialty hospitals, along with numerous outpatient facilities.

Mass General Brigham: A prominent academic health system based in Massachusetts, known for its leading hospitals and commitment to research and education.

It’s important to note that rankings can vary slightly depending on the specific metrics used (e.g., net patient revenue, total operating revenue, number of hospitals, or staffed beds) and the reporting period of the financial data.

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