Northwell’s Mather Hospital was among 15 Northwell Health hospitals to have received an “A” Hospital Safety Grade from The Leapfrog Group for fall 2025, recognizing their commitment to protecting patients from preventable harm and delivering the highest standards of safety and quality care. Mather has earned the most consecutive A grades of any hospital in Suffolk County.
The Leapfrog Hospital Safety Grade, the nation’s only rating program solely focused on hospital safety, assigns letter grades A through F to more than 3,000 acute-care hospitals across the country twice a year. Grades are based on the hospitals’ performance in preventing medical errors, injuries, accidents and infections.
“Patient safety is a top priority at Mather Hospital,” said Mather President Kevin McGeachy. “Our goal is to be a high reliability organization where everybody is encouraged to speak up about potential safety issues.”
The other Northwell hospitals received an “A” rating are Danbury Hospital (CT); Glen Cove Hospital; Huntington Hospital; Lenox Hill Hospital; Long Island Jewish Forest Hills; Long Island Jewish Valley Stream; Northern Dutchess Hospital; Northern Westchester Hospital; Peconic Bay Medical Center; Phelps Hospital; Plainview Hospital; Putnam Hospital; Sharon Hospital (CT); and South Shore University Hospital.
“Earning an “A” grade means Northwell Health made a true commitment to put patient safety first,” said Leah Binder, president and CEO of The Leapfrog Group. “We congratulate the leadership, Board, clinicians, staff and volunteers that all had a role to play in this achievement.”
The Leapfrog Group’s biannual grades are widely regarded as a trusted benchmark for consumers and healthcare professionals. An “A” grade indicates excellence in hospital safety across multiple measures, including staffing levels, infection prevention, hand hygiene compliance and responsiveness to critical events.
Full safety grade details and valuable tips for staying safe in the hospital are at HospitalSafetyGrade.org.
About Mather Hospital
Mather Hospital is an accredited 249-bed, non-profit community teaching hospital dedicated to providing a wide spectrum of high-quality health care services to Suffolk County residents, showing compassion, respect and treating each patient in the manner we would wish for our loved ones. Mather received its third top five-star rating from the Centers for Medicare & Medicaid Services for outcomes, patient experience and process and the prestigious Magnet® recognition three times from the American Nurses Credentialing Center for quality patient care, nursing excellence and innovations in professional nursing practice. The hospital was rated high performing by U.S. News & World Report 2025-2026 Best Hospitals rankings in two medical specialties of gastroenterology and GI surgery and pulmonology and lung surgery, and for congestive heart failure, kidney failure, and pneumonia. Mather also was named one of America’s 250 best hospitals for 2023, 2024 and 2025 by Healthgrades and in 2025 received Healthgrades’ Outstanding Patient Experience Award™ for the fifth consecutive year. Our Graduate Medical Education program prepares physicians for future careers through Internal Medicine, Transitional Year, Diagnostic Radiology, Interventional Radiology, Psychiatry and Pharmacy residency programs and gastroenterology and hematology/oncology fellowships. For information about Mather Hospital, visit matherhospital.org or follow us @MatherHospital on Facebook.
About Northwell Health
Northwell is the largest not-for-profit health system in the Northeast, serving residents of New York and Connecticut with 28 hospitals, more than 1,000 outpatient facilities, 22,000 nurses and over 20,000 physicians. Northwell cares for more than three million people annually in the New York metro area, including Long Island, the Hudson Valley, western Connecticut and beyond, thanks to philanthropic support from our communities. Northwell is New York State’s largest private employer with over 104,000 employees – including members of Northwell Health Physician Partners and Nuvance Health Medical Practices – who are working to change health care for the better. Northwell, named a TIME100 Most Influential Companies 2025, is making breakthroughs in medicine at the Feinstein Institutes for Medical Research. Northwell is training the next generation of medical professionals at the visionary Donald and Barbara Zucker School of Medicine at Hofstra/Northwell and the Hofstra Northwell School of Nursing and Physician Assistant Studies. For information on our more than 100 medical specialties, visit Northwell.edu and follow us @NorthwellHealth on Facebook, X, Instagram and LinkedIn.