
Mount Sinai Health System is the largest hospital network in New York City. It was formed in September 2013 through a merger between Continuum Health Partners and Mount Sinai Medical Center. Mount Sinai began as a single hospital founded in 1852 and opened in 1855 as the Jews' Hospital. The hospital is one of the oldest and largest teaching hospitals in the US. As of 2025, the Mount Sinai Health System is structured around eight hospital campuses, including Mount Sinai Hospital, Mount Sinai Brooklyn, and Mount Sinai Queens, with more than 6,600 primary and specialty care physicians and 13 ambulatory surgical centers.
| Characteristics | Values |
|---|---|
| Number of hospitals | 7 or 8 |
| Year of founding | 1852 |
| Year of opening | 1855 |
| Original name | The Jews' Hospital |
| Year of name change | 1866 |
| New name | The Mount Sinai Hospital |
| Location | Upper East Side, Manhattan, New York |
| Number of campuses | 7 or 8 |
| Number of physicians | 6,600 or more than 9,000 |
| Number of community health affiliations | More than 30 |
| Number of ambulatory surgical centers | 13 |
| Number of ambulatory practice locations | 400 |
| Number of joint-venture centers | 11 |
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What You'll Learn
- The Mount Sinai Health System began as a single hospital in 1852
- It now has seven hospital campuses in the New York metropolitan area
- The system includes more than 6,600 primary and specialty care physicians
- The Icahn School of Medicine at Mount Sinai was involved in a 2019 discrimination lawsuit
- The hospital network was formed in September 2013 by merging Continuum Health Partners and Mount Sinai Medical Center

The Mount Sinai Health System began as a single hospital in 1852
The Mount Sinai Health System, the largest hospital network in New York City, has come a long way since its inception as a single hospital in 1852. It was founded as the Jews' Hospital in 1852 and opened its doors in 1855. The hospital became nonsectarian in 1864 and changed its name to The Mount Sinai Hospital in 1866. Over the years, Mount Sinai Hospital has established itself as one of the oldest and largest teaching hospitals in the United States. It is located on the Upper East Side of Manhattan, beside Central Park.
In 1881, Mount Sinai Hospital took a significant step by establishing a training school for doctors and nurses, marking a shift from relying on untrained attendants. However, the school faced financial difficulties and closed in 1971. Undeterred, The Mount Sinai Hospital demonstrated its commitment to education by establishing the School of Continuing Education in Nursing in 1975. Additionally, in 1963, they chartered the Mount Sinai School of Medicine, the first medical school to emerge from a non-university setting in over five decades.
The Mount Sinai Health System expanded its reach in 1997 when St. Luke's-Roosevelt Hospital Center entered into a partnership with Beth Israel Medical Center, forming the Greater Metropolitan Health Systems, Inc. This entity was later renamed Continuum Health Partners in 1998. Continuum hospitals provided comprehensive care through seven major facilities in Manhattan and Brooklyn, with a focus on inpatient and outpatient care.
In September 2013, Continuum Health Partners took another significant step by merging with the Mount Sinai Medical Center. This merger resulted in the formation of the Mount Sinai Health System, which now encompasses eight hospital campuses, including Mount Sinai Beth Israel, Mount Sinai Brooklyn, and Mount Sinai Hospital (including Kravis Children's Hospital). With this expansion, the health system gained more than 6,600 primary and specialty care physicians and 13 ambulatory surgical centers, solidifying its position as a leading healthcare provider in the region.
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It now has seven hospital campuses in the New York metropolitan area
The Mount Sinai Health System, founded in 1852, is the largest hospital network in New York City. It has seven hospital campuses in the New York metropolitan area. The network was formed in September 2013 through a merger between Continuum Health Partners and Mount Sinai Medical Center. The merger brought together two major healthcare providers in Brooklyn and Manhattan, expanding Mount Sinai's presence in the New York metropolitan area.
The seven hospital campuses that comprise Mount Sinai's network are strategically located across the region. These include Mount Sinai Beth Israel (which closed in April 2025), Mount Sinai Brooklyn, Mount Sinai Hospital (including Kravis Children's Hospital), Mount Sinai Queens, Mount Sinai Morningside (formerly Mount Sinai St. Luke's), Mount Sinai West (formerly Mount Sinai Roosevelt), and New York Eye and Ear Infirmary of Mount Sinai.
The Mount Sinai Hospital, the original flagship location, is located on the Upper East Side of Manhattan, beside Central Park. It has a rich history, dating back to its founding in 1852 and opening in 1855 as the Jews' Hospital. The hospital became nonsectarian in 1864 and adopted the name The Mount Sinai Hospital in 1866, establishing itself as one of the oldest and largest teaching hospitals in the United States.
In addition to its seven hospital campuses, the Mount Sinai Health System includes the Icahn School of Medicine and the Mount Sinai Phillips School of Nursing. The health system boasts an extensive network of over 9,000 physicians, encompassing general practitioners and specialists. It also operates more than 400 ambulatory practice locations and 11 free-standing joint-venture centres across the five boroughs of New York City, Westchester, and Long Island.
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The system includes more than 6,600 primary and specialty care physicians
The Mount Sinai Health System is the largest hospital network in New York City. It was formed in September 2013 through the merger of Continuum Health Partners and the Mount Sinai Medical Center. The Health System comprises eight hospital campuses, the Icahn School of Medicine at Mount Sinai, and the Mount Sinai Phillips School of Nursing (PSON).
The eight hospitals are: Mount Sinai Beth Israel (closed in April 2025), Mount Sinai Brooklyn, Mount Sinai Hospital (including Kravis Children's Hospital), Mount Sinai Queens, Mount Sinai Morningside (formerly Mount Sinai St. Luke's), Mount Sinai West (formerly Mount Sinai Roosevelt), New York Eye and Ear Infirmary of Mount Sinai, and Mount Sinai South Nassau.
The Health System includes more than 6,600 primary and specialty care physicians and 13 ambulatory surgical centres. It has ambulatory practices throughout the five boroughs of New York City, Westchester County, and Long Island, along with more than 30 affiliated community health centres. The Mount Sinai Health System is committed to providing the highest quality care to its patients through its extensive network of hospitals, physicians, and ambulatory surgical centres.
The Icahn School of Medicine at Mount Sinai is a key component of the Health System, with its renowned research and education programmes. The School has affiliations throughout New York City and the tri-state area, including St. Luke's Cornwall Hospital and various internal medicine residency programs. The Mount Sinai Phillips School of Nursing also plays a vital role in training the next generation of nurses to support the growing network of hospitals.
The Health System's ambulatory practices and community health centres extend the reach of care beyond the hospitals, ensuring that patients can access primary and specialty services close to their homes. This comprehensive approach to healthcare delivery enables Mount Sinai to serve a diverse range of patient needs across New York City and beyond. With its vast resources, state-of-the-art facilities, and dedicated team of over 6,600 physicians, the Mount Sinai Health System is well-equipped to provide compassionate and advanced medical care to its patients.
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The Icahn School of Medicine at Mount Sinai was involved in a 2019 discrimination lawsuit
The Mount Sinai Health System is the largest hospital network in New York City, with eight hospital campuses. The Icahn School of Medicine at Mount Sinai, formerly the Mount Sinai School of Medicine, is a private medical school in New York City and is the academic teaching arm of the Mount Sinai Health System.
In April 2019, the Icahn School was involved in a discrimination lawsuit filed by discrimination lawyer Ann Olivarius on behalf of eight current and former employees. The suit alleged age and sex discrimination, improper reporting to funding agencies, misallocation of funds, and failure to adhere to the guidelines of the Health Insurance Portability and Accountability Act (HIPAA). The defendants included Dr. Prabhjot Singh, Director of the institute, Dr. Dennis S. Charney, Dean of the Icahn School, David Berman, the institute's Chief of Staff, and Bruno Silva, Director of Design and Product Development.
In response to the lawsuit, more than 150 students at the Icahn School and over 400 Icahn and Mount Sinai Health System faculty signed letters calling for an investigation into the allegations. The students expressed deep concern about the allegations, stating that "misogyny, discrimination, and bullying are never acceptable in interpersonal and professional settings." They also called for a transparent investigation into the claims, including the "culture of harassment perpetuated by school leadership."
The Icahn School denied the claims, and an investigation by the school did not substantiate the allegations. However, the investigation did reveal management issues at the institute, leading to the creation of an oversight committee.
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The hospital network was formed in September 2013 by merging Continuum Health Partners and Mount Sinai Medical Center
The Mount Sinai Health System is the largest hospital network in New York City. It was formed in September 2013 when Continuum Health Partners and Mount Sinai Medical Center merged their operations.
Continuum Health Partners was formed in 1998 when St. Luke's-Roosevelt Hospital Center entered into a partnership with Beth Israel Medical Center, forming the Greater Metropolitan Health Systems, Inc. The entity served as a parent corporation, with the two hospital centers continuing as separate business entities with their own campuses. Continuum treated patients across Brooklyn, Manhattan, and Westchester County.
Mount Sinai Medical Center, on the other hand, began as a single hospital founded in 1852 and opened in 1855 as the Jews' Hospital. In 1864, the hospital became nonsectarian and changed its name to The Mount Sinai Hospital in 1866. Over time, Mount Sinai expanded and, in 1999, it purchased a community hospital that became known as Mount Sinai Queens.
Following the 2013 merger, the Mount Sinai Health System was structured around eight hospital campuses, including the Icahn School of Medicine at Mount Sinai and the Mount Sinai Phillips School of Nursing. The eight hospitals were: Mount Sinai Beth Israel, Mount Sinai Brooklyn, Mount Sinai Hospital (including Kravis Children's Hospital), Mount Sinai Queens, Mount Sinai Morningside, Mount Sinai West, New York Eye and Ear Infirmary of Mount Sinai, and Mount Sinai South Nassau. The Health System also included more than 6,600 primary and specialty care physicians and 13 ambulatory surgical centers.
The merger allowed the Mount Sinai Health System to expand its reach and serve a diverse range of patients across New York City and beyond. With its extensive resources and state-of-the-art facilities, the network is dedicated to providing compassionate and advanced medical care to those who need it.
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