
Beth Israel Deaconess Medical Center (BIDMC) is a hospital formed out of the 1996 merger of Beth Israel Hospital and New England Deaconess Hospital. BIDMC is one of the largest hospitals in New England and is affiliated with the Joslin Diabetes Center. It is also a research partner of Dana-Farber/Harvard Cancer Center. In 2017, BIDMC was involved in a merger with Lahey Hospital & Medical Center, which was in opposition to Partners HealthCare, Massachusetts' largest network of hospitals and doctors. This merger led to the formation of Beth Israel Lahey Health in 2019, which includes other hospitals such as Addison Gilbert Hospital and Anna Jaques Hospital. BIDMC has partnerships with various organizations and offers a range of medical services, including gender-affirming care and Alzheimer's disease treatment.
| Characteristics | Values |
|---|---|
| Name | Beth Israel Deaconess Medical Center |
| Location | Boston |
| Year founded | 1916 |
| Founder | Jewish community |
| Merger | In 1996, Beth Israel Hospital merged with New England Deaconess Hospital |
| Ranking | Ranked in the top three recipients of biomedical research funding from the National Institutes of Health |
| Research funding | Research funding totals nearly $200 million annually |
| Number of projects | Researchers run more than 850 active sponsored projects and 200 clinical trials |
| Campus | The hospital has two campuses, the East (former Beth Israel) and the West (former Deaconess) |
| Number of employees | More than 6,000 full-time employees |
| Partnership | In 2003, the institution formed a partnership with the Boston Red Sox, becoming the official hospital of the team |
| Merger with Lahey Hospital & Medical Center | In January 2017, a letter of intent for a merger was reported, which would create the largest hospital merger in more than 20 years |
| Opposition to merger | In December 2017, the Make Healthcare Affordable Coalition opposed the proposed merger stating that it would lead to higher costs and the closing of health clinics serving minority communities |
| Merger with Mount Sinai | In 2010, Mount Sinai Beth Israel had residency training programs in nearly every major field of medicine |
| Closure | In October 2023, Mount Sinai Health System announced its plan to close Mount Sinai Beth Israel by July 12, 2024, citing low capacity and significant losses as reasons |
| Status | The hospital was officially closed effective at 8 am on Wednesday, April 9, 2025 |
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What You'll Learn

History of Beth Israel Hospital
The history of Beth Israel Hospital dates back over a century and encompasses several mergers, name changes, and a commitment to serving its community. The hospital was founded in 1916 by Boston's Jewish community to meet the needs of Jewish immigrants, with many speaking Yiddish and keeping kosher. This initial hospital had 45 beds and was located on Townsend Street in Roxbury.
In 1928, Beth Israel established relationships with Tufts University and the Harvard Medical School, and the hospital relocated to the Longwood area of Boston. During the Great Depression, Beth Israel was one of only two hospitals in Boston that treated welfare recipients, demonstrating its dedication to serving the community.
In 1996, Beth Israel Hospital merged with the New England Deaconess Hospital, founded in 1896 by Methodist deaconesses, to form the Beth Israel Deaconess Medical Center (BIDMC). This merger expanded the hospital's capabilities and allowed it to continue serving its community with enhanced patient care, educational opportunities, and research endeavours.
BIDMC has since become one of the largest hospitals in New England and is affiliated with the Joslin Diabetes Center. It is also a research partner of the Dana-Farber/Harvard Cancer Center and is one of the top recipients of biomedical research funding from the National Institutes of Health. In 2003, BIDMC researchers identified the source of preeclampsia, a life-threatening pregnancy complication.
The hospital has continued to evolve and expand its services. In 2017, BIDMC became part of a merger with Lahey Hospital & Medical Center, forming Beth Israel Lahey Health. This merger faced some opposition from groups concerned about cost increases and the potential closure of health clinics serving minority communities. However, Beth Israel Lahey Health now comprises multiple hospitals and continues to provide comprehensive healthcare services.
Additionally, BIDMC has formed partnerships with organisations like the Boston Red Sox and, in 2023, announced a new partnership with the Dana-Farber Cancer Institute to build a standalone hospital for treating adult cancer patients.
Beth Israel Hospital, now known as Beth Israel Deaconess Medical Center, has a rich history of serving its community, advancing medical research, and adapting to meet the changing healthcare needs of its patients.
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Beth Israel Deaconess Medical Center
The Beth Israel Deaconess Medical Center (BIDMC) is a leading hospital in New England, known for its comprehensive range of medical services and strong focus on research and innovation.
History and Formation
Affiliations and Partnerships
BIDMC has a strong network of affiliations and partnerships that enhance its capabilities and reach. It is affiliated with outstanding caregivers throughout eastern Massachusetts, including community hospitals, physicians, and community-based practices. This network ensures that patients across the region have access to high-quality care close to home, with seamless referrals to specialty services in Boston when needed.
One notable partnership is with the Boston Red Sox, becoming the official hospital of the team in 2003. BIDMC has also formed research collaborations, such as its affiliation with the Dana-Farber/Harvard Cancer Center, the largest cancer institution in the country. In September 2023, BIDMC and the Dana-Farber Cancer Institute announced plans to build a new hospital dedicated to treating adult cancer patients.
Services and Specializations
BIDMC offers a wide range of medical services, including acute care surgery, trauma and critical care, allergy and inflammation, anesthesia, and pain medicine. It has dedicated centres for various specializations, such as the Aortic Center, Arthritis Center, Boston Lymphatic Center, and Brain Tumor Center, among others. The hospital also provides advanced cardiac and cardiovascular services, including a new Heart Transplant Program.
Research and Innovation
BIDMC is a leader in biomedical research, ranking among the top recipients of research funding from the National Institutes of Health. With nearly $200 million in annual funding, BIDMC researchers conduct over 850 active sponsored projects and 200 clinical trials. The hospital is home to the Harvard-Thorndike General Clinical Research Center, the oldest clinical research laboratory in the United States.
Recent Developments
In recent years, BIDMC has continued to expand and enhance its services. In 2017, Peter J. Healy joined as president, and the hospital announced its merger with Lahey Hospital & Medical Center, creating Beth Israel Lahey Health. This merger formed a powerful network of hospitals, including Addison Gilbert Hospital, Anna Jaques Hospital, and Beth Israel Deaconess Hospital-Milton. BIDMC has also established itself as a leader in gender-affirming services, offering comprehensive care for gender-diverse individuals.
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Mount Sinai Beth Israel
In June 2017, the hospital's Labor and Delivery Department closed, followed by the Continuum Center for Health and Healing later that year. In October 2023, the Mount Sinai Health System announced plans to close Mount Sinai Beth Israel by July 12, 2024, citing low capacity and significant financial losses. This announcement sparked protests and legal challenges from the community, with a temporary restraining order issued against the hospital in February 2024.
The case was dismissed by the New York Supreme Court in February 2025, and the hospital was cleared for closure. Mount Sinai Beth Israel officially closed on April 9, 2025.
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Partnerships and affiliations
Beth Israel Deaconess Medical Center (BIDMC) is a product of the 1996 merger between Beth Israel Hospital and New England Deaconess Hospital. BIDMC is one of the largest hospitals in New England and is affiliated with the Joslin Diabetes Center. It is also a research partner of Dana-Farber/Harvard Cancer Center, the largest cancer institution in the country.
In 2003, BIDMC formed a partnership with the Boston Red Sox, becoming the official hospital of the team. BIDMC is also part of the Boston MedFlight consortium and supports a Level I trauma center.
In January 2017, The Boston Globe reported on a letter of intent for a merger between BIDMC and Lahey Hospital & Medical Center. This merger would create the largest hospital merger in over 20 years and counterbalance Partners Healthcare, Massachusetts' largest network of hospitals and doctors. In March 2019, the merger was completed, forming Beth Israel Lahey Health, which includes several other hospitals in the region.
In September 2023, the Dana-Farber Cancer Institute announced a new partnership with BIDMC to build a new standalone hospital focused on treating adult cancer patients. This partnership marked a departure from Dana-Farber's longtime affiliation with Brigham and Women's Hospital.
In addition to its partnerships, BIDMC has a vast system of community hospitals, physicians, and community-based practices throughout eastern Massachusetts, providing high-quality care to patients close to home.
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Services and treatments
The Beth Israel Deaconess Medical Center (BIDMC) in Boston offers a wide range of services and treatments, including:
Cancer Care
BIDMC is affiliated with the Joslin Diabetes Center and is a research partner of the Dana-Farber/Harvard Cancer Center, the largest cancer institution in the country. The medical center has various cancer-focused programs and centers, including the Blood Cancer Program, Bone and Soft Tissue Sarcomas Program, Brain Tumor Center, Breast Cancer Imaging and Care, Cancer Genetics, and the Cardiovascular Institute, among others. Dana-Farber and BIDMC have also partnered to build a new standalone hospital for treating adult cancer patients, marking a break from Dana-Farber's longtime affiliation with Brigham and Women's Hospital.
Cardiovascular Services
The medical center has expanded its cardiovascular services to include a Heart Transplant Program.
Gender-Affirming Services
BIDMC's Gender-Affirming Services team provides care for gender-diverse individuals, offering hormone treatments, voice and speech therapy, and surgery.
Emergency and Urgent Care
BIDMC provides alternatives to emergency room visits through its primary care and urgent care centers.
Mental and Behavioral Health
The medical center addresses mental and behavioral health, including services for Alzheimer's disease treatment. BIDMC's Medical Director of Cognitive Neurology, Dr. Chun Lim, has shared that BIDMC will be the first hospital in Massachusetts to offer lecanemab for Alzheimer's disease treatment.
Other Specialties
BIDMC offers a comprehensive range of other services, including acute care surgery, trauma and surgical critical care, anesthesia, critical care and pain medicine, arthritis treatment, dialysis, digestive disease management, ear, nose, and throat (ENT) care, endocrine surgery, eye care, infectious disease treatment, and reproductive and sexual health services.
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Frequently asked questions
No, Beth Israel Deaconess Medical Center is not part of Partners HealthCare. In fact, in 2017, a merger between Beth Israel Deaconess and Lahey Hospital & Medical Center was announced, which would be a counteraction to Partners HealthCare.
Beth Israel Deaconess Medical Center is a hospital formed out of the 1996 merger of Beth Israel Hospital and New England Deaconess Hospital. It is one of the largest hospitals in New England and is affiliated with the Joslin Diabetes Center.
Beth Israel Hospital was founded in 1916 by the Jewish community. It has since been involved in multiple mergers, including with Deaconess Hospital in 1996 to form Beth Israel Deaconess Medical Center, and with Lahey Hospital & Medical Center in 2019 to form Beth Israel Lahey Health.
Deaconess Hospital was founded in 1896 by Methodist deaconesses to care for Boston's residents. It was originally staffed by the Deaconesses, but in 1922 it added a permanent medical and surgical staff.











































