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 moreComprehensive Wound Care
Wound care experts at The Center for Hyperbaric Medicine & Wound Healing at St. Catherine of Siena Hospital treat patients who have chronic or complex wounds. Treatment options include hyperbaric oxygen (HBO) therapy.
We use cookies and similar tools to give you the best website experience. By using our site, you accept our privacy policy and agree to our use of cookies.
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.
Specialized Care for Special Wounds
George Marchelos needed three amputations on his left foot due to an infection resulting from diabetes.
A Journey Toward Healing With Hyperbaric Oxygen Therapy
Dawn Nilsson received hyperbaric oxygen (HBO) therapy for radiation proctitis
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
Living the Mission: Teresa Small
Teresa Small is a Dietetic Supervisor at St. Catherine of Siena Hospital.
Back On Top After Breast Cancer Diagnosis
Nancy Hilsenbeck of Oakdale, NY, knows the importance of routine breast cancer screenings.
St. Catherine of Siena Hospital Appoints New President
Declan Doyle, MBA, has been named President at Catholic Health’s St. Catherine of Siena Hospital.