# Hospital network

A hospital network is a public, non-profit or for-profit company or organization that provides two or more hospitals and other broad healthcare facilities and services. A hospital network may include hospitals in one or more regions within one or more states within one or more countries. A hospital network has one headquarter, usually within one of the regions served by the network facilities. (The terms hospital system and health care system are used more broadly to define the organization of people, institutions, and resources that deliver health care services to meet the health needs of a region or country.)

## History

Some of the earliest hospital networks were affiliated with charitable, religious organizations. The Catholic Church established a hospital network in medieval Europe that was vastly improved from the merely reciprocal hospitality of the Greeks and family-based obligations of the Romans. These hospitals were established to cater to "particular social groups marginalized by poverty, sickness, and age," according to historian of hospitals, Guenter Risse.
In the late 20th century hospital networks were established to make delivery of healthcare more efficient and to share specialized medical services and physicians across the network. To avoid financial losses due to shrinking reimbursements and rising costs as well as improving quality of care and avoid duplication of services, hospitals may consolidate certain services at one hospital. However, patients may need to travel farther if those services are no longer offered at their local hospital.

## Largest hospital networks

Hospital networks that do not have reliable sources may not be included; these are not necessarily complete lists.

### Ranked by capacity

This is a list of hospital networks with a capacity of more than 2,500 beds.
| Hospital network | Country | Beds | As of year |
| HCA Healthcare | United States | 48,855 | 2019 |
| Alberta Health Services | Canada | 40,905 | 2024 |
| Helios | Germany | 38.129 | 2021 |
| Ascension | United States | 27,843 | 2020 |
| Asklepios Kliniken | Germany | 27,090 | 2019 |
| IHH Healthcare | Malaysia | 15,000 | |
| Veterans Health Administration | United States | 13,000 | |
| Apollo Hospitals | India | 10,261 | 2020 |
| Chang Gung Medical Foundation | Taiwan | 10,050 | |
| University of Pittsburgh Medical Center | United States | 8,800 | 2022 |
| First Affiliated Hospital of Zhengzhou University | China | 7,000 | |
| Cleveland Clinic | United States | 6,026 | 2019 |
| Advocate Aurora Health | United States | 5,862 | 2021 |
| University Hospitals Ruhr Bochum | Germany | 5,645 | 2021 |
| Manipal Hospitals India | India | 5,000 | |
| SingHealth | Singapore | 4,814 | 2021 |
| National Healthcare Group | Singapore | 4,683 | 2019 |
| West China Medical Center | China | 4,300 | |
| Fortis Healthcare | India | 4,000 | 2020 |
| Charité | Germany | 3,099 | 2021 |
| Metro Pacific Hospitals | Philippines | 3,200 | 2018 |

### Ranked by staff

This is a list of hospital networks with at least 20,000 staff.
| Hospital | Country | Staff | As of year |
| Veterans Health Administration | United States | 330,000 | |
| HCA Healthcare | United States | 309,000 | 2024 |
| Kaiser Permanente | United States | 219,930 | 2024 |
| CommonSpirit Health | United States | 175,000 | 2024 |
| Alberta Health Services | Canada | 133,050 | 2024 |
| Helios | Germany | 125,000 | 2021 |
| AdventHealth | United States | 100,000 | 2025 |
| University of Pittsburgh Medical Center | United States | 100,000 | 2024 |
| Advocate Aurora Health | United States | 155,000 | 2024 |
| Mayo Clinic | United States | 70,000 | 2019 |
| Cleveland Clinic | United States | 80,642 | 2024 |
| Apollo Hospitals | India | 62,939 | 2020 |
| IHH Healthcare | Malaysia | 55,000 | |
| Johns Hopkins Medicine | United States | 53,352 | 2018 |
| Asklepios Kliniken | Germany | 36,265 | 2019 |
| SingHealth | Singapore | 31,570 | 2021 |
| Manchester University NHS Foundation Trust | United Kingdom | 23,000 | 2019 |
| NHS Greater Glasgow & Clyde | United Kingdom | 44,000 | 2025 |

## By country
### United States

The largest hospital networks headquartered in the United States are included in the table below. The name, headquarters location, number of hospitals, funding type and founding year are given for each network. There were 6,146 hospitals in the United States in 2020, of which 2,240 were managed by the largest 45 hospital networks.
Hospital networks headquartered in the United States :
| Network | HQ city | State | No. of hospitals in network | Funding | Founded |
| United States Department of Veterans Affairs | Washington, D.C. | Washington, D.C. | 171 (2021) | public (Federal) | 1989 |
| HCA Healthcare | Nashville | Tennessee | 184 (2021) | for-profit | 1968 |
| Ascension Health | St. Louis | Missouri | 139 (2021) | non-profit Catholic | 1999 |
| CommonSpirit Health | Chicago | Illinois | 137 (2021) | non-profit Catholic | 2019 |
| Community Health Systems | Franklin | Tennessee | 84 (2021) | for-profit | 1985 |
| Trinity Health | Livonia | Michigan | 92 (2021) | non-profit Catholic | 2000 |
| LifePoint Health | Brentwood | Tennessee | 84 (2021) | for-profit | 1999 |
| Tenet Healthcare | Dallas | Texas | 65 (2021) | for-profit | 1969 |
| Vibra Healthcare | Mechanicsburg | Pennsylvania | 45 (2021) | for-profit | 2004 |
| Providence St. Joseph Health | Renton | Washington | 52 (2021) | non-profit Catholic | 2016 |
| Atrium Health | Charlotte | North Carolina | 40 (2021) | non-profit | 1940 |
| AdventHealth | Altamonte Springs | Florida | 50 (2021) | non-profit (Seventh-day Adventist Church) | 1973 |
| Baylor Scott & White Health | Dallas | Texas | 52 (2021) | for-profit | 1897 |
| Bon Secours Mercy Health | Cincinnati | Ohio | 50 (2021) | non-profit Catholic | 2018 |
| Prime Healthcare Services | Ontario | California | 45 (2021) | for-profit | 2001 |
| Sanford Health | Sioux Falls | South Dakota | 46 (2021) | non-profit | 1894 |
| Mercy Health | St. Louis | Missouri | 40 (2021) | non-profit Catholic | 1871 |
| University of Pittsburgh Medical Center (UPMC) | Pittsburgh | Pennsylvania | 40 (2021) | non-profit | 1893 |
| Kaiser Permanente | Oakland | California | 39 (2021) | consortium of for-profit and non-profit | 1945 |
| MercyOne | Clive | Iowa | 25 (2021) | non-profit Catholic | 1998 |
| Steward Health Care System | Dallas | Texas | 37 | for-profit | 2010 |
| Christus Health | Irving | Texas | 60 (2021) | non-profit Catholic | 1999 |
| Avera Health | Sioux Falls | South Dakota | 35 (2021) | non-profit Catholic | 1897 |
| Ardent Health Services | Nashville | Tennessee | 30 (2021) | for-profit | 1993 |
| Great Plains Health Alliance | Wichita | Kansas | 29 (2021) | non-profit | 1950 |
| Texas Health Resources | Arlington | Texas | 27 (2021) | non-profit faith based | 1997 |
| Advocate Aurora Health | Downers Grove | Illinois | 26 (2021) | non-profit | 2018 |
| Banner Health | Phoenix | Arizona | 30 (2021) | non-profit | 1999 |
| NewYork-Presbyterian Healthcare System | New York City | New York | 26 | non-profit Presbyterian | 2015 |
| Providence Health & Services | Renton | Washington | 52 (2021) | non-profit Catholic | 1859 |
| Indian Health Service | Rockville | Maryland | 46 (2021) | public (Federal) | 1955 |
| Quorum Health Corporation | Brentwood | Tennessee | 22 (2021) | for-profit | 2015 |
| Universal Health Services | King of Prussia | Pennsylvania | 26 (2021) | for-profit | 1979 |
| Intermountain Healthcare | Salt Lake City | Utah | 24 (2021) | non-profit | 1970 |
| Sutter Health | Sacramento | California | 24 (2021) | non-profit | 1921 |
| Community Hospital Corporation | Plano | Texas | 29 (2021) | for-profit | 1996 |
| Mayo Clinic Health System | Rochester | Minnesota | 20 (2021) | non-profit | 1992 |
| Northwell Health | New Hyde Park | New York | 23 (2021) | non-profit | 1997 |
| SSM Health Care | St. Louis | Missouri | 23 (2021) | non-profit Catholic | 1872 |
| Baptist Health | Memphis | Tennessee | 22 (2021) | non-profit Baptist | 1955 |
| UnityPoint Health | West Des Moines | Iowa | 39 (2021) | non-profit | 1993 |
| Ballad Health | Johnson City | Tennessee | 21 (2021) | non-profit | 2018 |
| Hospital Sisters Health System | Springfield | Illinois | 15 | non-profit Catholic | 1978 |
| BJC HealthCare | St. Louis | Missouri | 15 | non-profit | 1993 |
| Allina Health | Minneapolis | Minnesota | 12 | non-profit | 1983 |
Notes:
* ↑ In February 2019, CHI merged with Dignity Health. In February 2019, Dignity Health merged with Catholic Health Initiatives, becoming CommonSpirit Health.'"`UNIQ--ref-00000057-QINU`"'
* ↑ MercyOne is run under a joint operating agreement between Catholic Health Initiatives and Trinity Health.'"`UNIQ--ref-00000059-QINU`"'
* ↑ Advocate Aurora Health was formed in 2018 as a merger between Advocate Health Care and Aurora Health Care'"`UNIQ--ref-0000005B-QINU`"'
* ↑ Includes 24 IHS and 22 tribally operated hospitals'"`UNIQ--ref-0000005D-QINU`"'
* ↑ Quorum Health Corporation is a spin-off of Community Health Systems.

### Canadian headquartered hospital networks

* Alberta Health Services, Province of Alberta, 106 hospitals
* Scarborough Health Network, Toronto, Ontario, 3 hospitals
* Sinai Health System, Toronto, Ontario, 2 hospitals
* The Ottawa Hospital, Ottawa, Ontario, 3 hospitals
* Toronto East Health Network
* Trillium Health Partners, Toronto, Ontario, 3 hospitals
* Unity Health Toronto, Toronto, Ontario, 3 hospitals
* University Health Network, Toronto, Ontario, 4 hospitals
* William Osler Health System, Brampton, Ontario, 2 hospitals
* Grey Bruce Health Services, Grey County, Ontario and Bruce County, Ontario, 6 hospitals
* Halton Healthcare, Greater Toronto Area, 3 hospitals
* London Health Sciences Centre, London, Ontario, 2 hospitals
* McGill University Health Centre, Montreal, Quebec, 7 hospitals

### Irish headquartered hospital networks

A new grouping of hospitals was announced by the Irish Minister for Health, Dr. James Reilly TD in May 2013, as part of a restructure of Irish public hospitals and a goal of delivering better patient care:
* Dublin North East (subsequently renamed RCSI Hospitals)
* Dublin Midlands (subsequently renamed Dublin Midlands Hospital Group)
* Dublin East (subsequently renamed Ireland East Hospital Group)
* South/South West (subsequently renamed South/Southwest Hospital Group)
* West/North West (subsequently renamed Saolta University Health Care Group)
* Mid West (subsequently renamed UL Hospitals Group)

### United Kingdom

* National Health Service (England)
* NHS Scotland
* NHS Wales
* Health and Social Care in Northern Ireland

### Other

* Aga Khan Health Services, HQ in France
* Assistance Publique – Hôpitaux de Paris, Paris, France; 44 hospitals
* Chang Gung Medical Foundation, Taiwan, 8 hospitals
* Hirslanden Private Hospital Group, Switzerland, 17 hospitals