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Patient-Centered Emergency Care
Mercy Hospital's dedicated emergency department (ED) team provides the highest level of safe, prompt and exceptional care for patients in Rockville Centre and the surrounding communities. Our ED expansion includes new treatment bays, a larger waiting room, and the most advanced health care technologies.
Michael Cramer, a former commander in the United States Navy, was successfully treated for a heart attack at the hospital's St. Francis Heart Center. He returned to the ED recently to thank the care team who saved his life.
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Pediatric Excellence
Mercy Hospital's Family Care Center gives Nassau County residents access to pediatric specialists in areas including allergy/immunology, endocrinology, gastroenterology, hematology, infectious disease, nephrology, neurology and pulmonology.
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Services & Care
Our team of experts offer comprehensive care to meet the unique health needs of each patient.
Community Health
We hold wellness events, classes and free health screenings for our Long Island communities.
Featured News
Living the Mission: Matthew O’Brien
A dedicated team leader in the Emergency Department (ED) at Mercy Hospital.
Mercy Hospital Unveils its Newly Enhanced Emergency Department
The hospital held a ribbon-cutting ceremony for its newly upgraded emergency department (ED).
Catholic Health Hospitals Receive Recognition for Excellence in Stroke Care
Catholic Health hospitals have once again received the American Heart Association’s Get With The Guidelines®-Stroke Quality Achievement Award.
Emergency Department Earns Prestigious Award From Emergency Nurses Association
Recognizing Mercy nurses for demonstrating exceptional and innovative leadership, practice, education, advocacy and research.
Catholic Health Opens Third Root & Sprig Location at Mercy Hospital
Catholic Health celebrated another milestone with the opening of its third Root & Sprig location at Mercy Hospital.
Catholic Health Mercy Hospital Unveils its New Pre-Surgical Testing Suite
The 3,300-square-foot space will boost overall patient experience and enhance health equity.