Good things are happening at St. Catherine of Siena Hospital
The Only Choice for Your Heart Care
Dr. Allen Jeremias, Associate Director of St. Francis Heart Center’s Cardiac Catheterization Lab, now sees patients at St. Catherine of Siena Hospital in Smithtown. He joins Dr. Eileen Rae Bishop, Dr. David D’Agate, Dr. Ezra Deutch, Dr. David Gidseg, Dr. Michael Happes, Dr. Stephen Littman, Dr. Armen Ovsepian, Dr. Kathleen Stergiopoulos, and Dr. Saadat Aleem.
You only get one heart, and St. Francis Heart Center is the best place to care for it.
Learn moreEnhancing Patient Experience
St. Catherine of Siena Hospital's emergency department (ED) expansion ensures that patients in Smithtown and the surrounding communities receive safe, prompt and exceptional emergency care. Highlights include new treatment bays, a larger waiting room, a new ambulance bay, and the most advanced health care technologies.
For Larry Costello, that level of care saved his life when he was successfully treated for a heart attack at the hospital's St. Francis Heart Center.
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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 offer wellness events, classes and free health screenings.
For Patients & Visitors
Helpful information to make your hospital visit easier.
Featured News
Catholic Health Opens Second Root & Sprig Restaurant at St. Catherine of Siena Hospital
Healthy eating options at new fast-casual restaurant.
St. Francis Heart Center Saves Hauppauge Resident’s Life
Larry Castello was successfully treated for a heart attack at the St. Francis Heart Center at St. Catherine of Siena Hospital.
Living the Mission: Clarisa Requena Ortega
Clarisa Requena Ortega strives every day to make a difference at St. Catherine of Siena Hospital.
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.
St. Catherine of Siena Hospital Hosts Ceremonial Ribbon Cutting for $1 Million Emergency Department Renovation
Ceremonial ribbon cutting for its $1 million Emergency Department (ED) renovation.
Specialized Care for Special Wounds
George Marchelos needed three amputations on his left foot due to an infection resulting from diabetes.
Radiation Cystitis Healed With Pressurized Oxygen
John Murphy underwent treatment at Center for Hyperbaric Medicine & Wound Healing at St. Charles Hospital for his radiation cystitis