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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	Ref
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	Ref
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	96,000	2024
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

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.

Notes:

1. In February 2019, CHI merged with Dignity Health. In February 2019, Dignity Health merged with Catholic Health Initiatives, becoming CommonSpirit Health.
2. MercyOne is run under a joint operating agreement between Catholic Health Initiatives and Trinity Health.
3. Advocate Aurora Health was formed in 2018 as a merger between Advocate Health Care and Aurora Health Care
4. Includes 24 IHS and 22 tribally operated hospitals
5. 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

See also

• Health system
• History of hospitals

References

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3. Summit's maternity facility to be folded into Alta Bates Archived 2007-09-27 at the Wayback Machine September 16, 2001 ANG News Online. Accessed September 3, 2007.
4. "History of Hospitals". Penn Nursing. Retrieved November 16, 2020.
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32. "Fresenius Helios | FSE". www.fresenius.com. Retrieved 2022-10-01.
33. "AdventHealth Locations". AdventHealth. Retrieved 2024-05-10.
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35. "About Us - Mayo Clinic Facts". Mayo Clinic. Retrieved 2021-01-25.
36. "The Impact of Johns Hopkins in Maryland" (PDF). December 2020.
37. "Manchester University NHS Foundation Trust Annual Report and Accounts 1st April 2019 to 31st March 2020" (PDF). Manchester University NHS Foundation Trust.
38. "100 of the largest hospitals and health systems in America in 2019". Becker's Hospital Review. 2019. Retrieved November 6, 2020.
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42. ^ "100 of the largest hospitals and health systems in America 2021". Becker's Hospital Review. 2021. Retrieved March 7, 2022.
43. Chandler, Michele. "Merger of Dignity Health and Catholic Health Initiatives is approved". USA TODAY. Retrieved 2020-02-02.
44. "About Us". MercyOne.org. Retrieved 20 April 2020.
45. Weaver, Christopher; Jaramillo, Cassandra. "Community Health Spinoff to Focus on Smaller Markets". The Wall Street Journal. ISSN 0099-9660. Retrieved 2015-11-09.
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48. "Minister Announces Hospital Groups and Publishes The Framework for Smaller Hospitals". Department of Health. Department of Health (Ireland). 15 May 2013. Retrieved 15 May 2013.
49. "Six hospital groups 'most fundamental reform in decades'". Irish Medical Times. 14 May 2013. Retrieved 27 May 2019.

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• Hospitals
• Lists of hospitals