Our areas of expertise
Orthopedics
Our commitment to excellence in orthopedic care reinforces our reputation as a leader in the field.
Bariatric Surgery
Ranked among the best hospitals in the nation by Healthgrades for bariatric surgery.
Heart Care
Our expert team provides advanced, compassionate heart care close to home.
Neurosciences
A collaborative approach to providing care for brain and spine conditions.
Elevating Care Beyond Expectations
We’re elevating care beyond expectations by combining compassionate, personalized care with nationally recognized clinical experience. Ranked in the top 5% of hospitals nationwide by Healthgrades and earning five stars from Medicare for quality care, Mather Hospital goes above and beyond to deliver exceptional outcomes for you.
With 21 ‘A’ grades in patient safety from The Leapfrog Group and Magnet® recognition for nursing excellence, Mather Hospital is recognized for care that meets the highest standards. As part of Northwell Health, we connect you to top specialists, bringing the best care right to your neighborhood—exceeding expectations and raising the health of our community.
In the News
Mather awarded Advanced Total Hip and Knee Replacement Certification from The Joint Commission
February 13, 2025PORT JEFFERSON, NY – Mather Hospital today announced that it has earned The Joint Commission’s Gold Seal of Approval® for Advanced Total Hip and Knee Replacement Certification by demonstrating continuous compliance with its performance standards. The Gold Seal is a symbol of quality that reflects a healthcare organization’s commitme ...
Northwell Walk to Raise Health at Port Jefferson May 18
April 14, 2025Annual event benefits the Fortunato Breast Health Center PORT JEFFERSON, NY – Join Mather Hospital on Sunday, May 18, 2025 for the annual Northwell Walk to Raise Health at Port Jefferson to support the Fortunato Breast Health Center. Presented by Four Leaf Federal Credit Union, the Walk brings together family, friends and team me ...
Mather named one of America’s Best Hospitals for 2025 by Healthgrades
January 31, 2025PORT JEFFERSON, NY – Northwell’s Mather Hospital announced today that it is one of America’s 250 Best Hospitals for 2025, according to new research released by Healthgrades, the number one site Americans use when searching for a doctor or hospital. This achievement reflects Mather Hospital’s unwavering commitment to excepti ...
Mather awarded Advanced Total Hip and Knee Replacement Certification from The Joint Commission
Mather Hospital today announced that it has earned The Joint Commission’s Gold Seal of Approval® for Advanced Total Hip and Knee Replacement Certification by demonstrating continuous compliance with its performance standards. The Gold Seal is a symbol of quality that reflects a healthcare organization’s commitment to providing safe and quality patient care …
Northwell Walk to Raise Health at Port Jefferson May 18
April 14, 2025Annual event benefits the Fortunato Breast Health Center PORT JEFFERSON, NY – Join Mather Hospital on Sunday, May 18, 2025 for the annual Northwell Walk to Raise Health at Port Jefferson to support the Fortunato Breast Health Center. Presented by Four Leaf Federal Credit Union, the Walk brings together family, friends and team me ...
Mather named one of America’s Best Hospitals for 2025 by Healthgrades
January 31, 2025PORT JEFFERSON, NY – Northwell’s Mather Hospital announced today that it is one of America’s 250 Best Hospitals for 2025, according to new research released by Healthgrades, the number one site Americans use when searching for a doctor or hospital. This achievement reflects Mather Hospital’s unwavering commitment to excepti ...
Our Commitment to Excellence is Reflected in Our Achievements
As one of Americas 250 Best Hospitals, we’re setting a new standard for quality care nationwide.
Superior clinical outcomes and exceptional patient experience.
Our 21st top ‘A’ grade for our commitment to patient safety.
Rated as high performing by U.S. News & World Report.
Recognized for quality patient care, nursing excellence and innovations in professional nursing practice.