Delivering Excellence in Health Care
St. Catherine of Siena Hospital, part of the Catholic Health system, is a community hospital located in Smithtown, NY. The hospital has served the residents of the Smithtown area for more than 50 years. We are committed to delivering the highest level of care to our patients who trust us with their health care needs.
St. Catherine of Siena Hospital is named after Saint Catherine Benincasa of Siena, Italy, who was noted for her work as a nurse, mediator and spiritual leader during the 14th century.
St. Catherine of Siena Hospital Recognized with "A" Grade for Patient Safety
St. Catherine of Siena Hospital is proud to have earned an “A” Hospital Safety Grade from The Leapfrog Group, in its Spring 2026 Hospital Safety Survey. This national nonprofit organization sets rigorous standards for patient safety and quality, and this achievement reflects strong performance in preventing medical errors, injuries, accidents and infections.
The program is widely recognized as one of the most transparent and trusted measures of hospital safety in the United States.
This is the seventh time that St. Catherine of Siena has received an “A” grade with Leapfrog, underscoring our ongoing efforts to strengthen safety practices, enhance the patient experience, and build a high-performing culture of care.
St. Catherine of Siena Hospital Receives CMS Five-Star Rating
St. Catherine of Siena Hospital is proud to have earned a five-star overall quality rating from the Centers for Medicare & Medicaid Services (CMS), the highest rating awarded by the federal agency.
This inaugural five-star designation was achieved in May, 2026 and represents a significant milestone in Catholic Health’s system-wide performance and mission of continuous improvement.
The CMS Star Quality Ratings remain one of the most widely used benchmarks for hospital performance across the United States. Hospitals are evaluated across various measures including clinical quality, operational effectiveness and patient-centered care, with five stars representing the highest level of performance nationwide.
Quality and safety are central to everything we do at St. Catherine of Siena and we are committed to delivering the best possible outcomes and experience for every patient.
The Story Behind Our Logo
Our logo communicates the power of faith, hope and healing found both in our Catholic Faith and our work at Catholic Health. The shape of the logo evokes two images. The first is that of a chalice and sacred host, representing the elements of Holy Communion, the Body and Blood of Jesus Christ, the very heart of the Catholic Faith. As a graphic element, the chalice and host also becomes the figure of a human person, arms uplifted in a celebration of the gifts of life, health and healing, especially as these reflect the mission of Catholic Health.
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