Healthcare Insights
Top 20 largest California health systems by number of beds
California is the largest state in the U.S by population. Its 40 million residents rely on thousands of health centers across the state for their medical needs. Many of these healthcare facilities are part of broader integrated delivery networks (IDNs) so that patients’ needs can be properly addressed across a wide range of specialties.
Using Definitive Healthcare’s HospitalView product, we created a list of the 20 IDNs with the most beds in California. The number of staffed beds within a facility or IDN provides a useful metric to measure its patient capacity.
| Rank | IDN | Definitive ID | # of hospital beds in CA | Explore dataset |
|---|---|---|---|---|
| 1 | Kaiser Permanente | 4713 | 8808 | Explore |
| 2 | CommonSpirit Health | 981465 | 5847 | Explore |
| 3 | University of California Health | 560423 | 4716 | Explore |
| 4 | Providence St Joseph Health | 4716 | 4010 | Explore |
| 5 | Sutter Health | 4717 | 3911 | Explore |
| 6 | Prime Healthcare Services | 542003 | 2675 | Explore |
| 7 | Adventist Health | 4694 | 2427 | Explore |
| 8 | Tenet Healthcare | 4685 | 2341 | Explore |
| 9 | HCA Healthcare | 4710 | 1596 | Explore |
| 10 | Universal Health Services | 7055 | 1571 | Explore |
| 11 | Department of Veterans Affairs | 7265 | 1534 | Explore |
| 12 | County of Santa Clara Health System | 992313 | 1223 | Explore |
| 13 | MemorialCare Health System | 4875 | 1196 | Explore |
| 14 | Stanford Medicine | 938977 | 1153 | Explore |
| 15 | KPC Group | 778798 | 1139 | Explore |
| 16 | ScionHealth | 1043246 | 1082 | Explore |
| 17 | Prospect Medical Holdings | 575843 | 1027 | Explore |
| 18 | US Department of Defense Military Health System | 551508 | 658 | Explore |
| 19 | Signature Healthcare Services | 7056 | 625 | Explore |
| 20 | Vibra Healthcare | 542027 | 496 | Explore |
Fig. 1. Data is from Definitive Healthcare’s HospitalView product. Data is accurate as of November 2022.
Which health systems have the most staffed beds in California?
Kaiser Permanente has the most staffed beds in California with 8,808. Its network is comprised of 36 hospitals across the state, putting it at the top of our list. This Oakland-based health system also has facilities in Hawaii, Washington, Oregon, Colorado, Maryland, Virginia, and Georgia and runs the largest managed care organization in the United States.
In second place is CommonSpirit Health with 5,847 staffed beds in California. This health system is based in Chicago, but currently operates 32 hospitals in the state of California. CommonSpirit was formed in 2019 through the combination of Catholic Health Initiatives and Dignity Health, thus creating one of the largest healthcare systems in the country. All of its healthcare facilities in California are operated through Dignity Health, which has numerous locations across the western United States.
In third place is University of California Health, headquartered in Oakland. This health system has 4,716 staffed beds across the state. It’s the only health system on the list that operates exclusively in California, with 22 hospitals in the state. Its hospitals and academic health centers are currently ranked among the best in California and the nation.
Why are IDNs important to healthcare?
Integrated delivery networks are similar to accountable care organizations (ACOs) in that they use large networks of healthcare providers across multiple specialties to provide the highest quality of care possible. While ACOs can span multiple networks, an IDN’s structure enables patients to receive all the care that they need within one network. Keeping patients in-network improves collaboration and communication throughout their treatment and also prevents revenue loss from network leakage.
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