| Characteristic | Number of health systems |
|---|---|
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
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November 2024
United States
2016 to 2023
Source adds the following:Â
The Agency for Healthcare Research and Quality (AHRQ) uses the following definition of a health system for the Compendium: A health system includes at least one hospital and at least one group of physicians that provides comprehensive care (including primary and specialty care) who are connected with each other and with the hospital through common ownership or joint management.
This definition is further operationalized as requiring that a health system:
- Include at least one non-Federal acute care hospital,
- Include, in total, at least 50 physicians, and
- Include at least 10 primary care physicians.
While the requirement that a system include an acute care hospital excludes provider organizations that nonetheless provide comprehensive management of their patient populations, this definition is consistent with those used in the source data provided by IQVIA and the American Hospital Association (AHA).Â









