![declan doyle](/sites/default/files/styles/200_max/public/2024-04/declan-doyle-1.jpg?itok=-n5Nh6mI)
![St Catherine of Siena New Services, New Programs](/sites/default/files/styles/climate_home_banner/public/2024-04/scs-exterior-retouch-1440-x-742-px-1.jpg?h=25dbd90a&itok=I5bbv2YJ)
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.
![St. Catherine of Siena Hospital Wound Care](/sites/default/files/styles/page_image_video/public/2024-03/_dsc7713-enhanced-nr-copy.jpg?h=7f3b84c3&itok=FI6O8Zc0)
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.
x
What can we help you find?
How would you like to search for a doctor?
Find a Doctor
Find a Doctor
How would you like to search for a location?
Locations across Long Island
Locations across Long Island
Search for a service or program
Appointments & Video Visits
Call 866-MY-LI-DOC (866-695-4362) to find a physician near you. Please call 9-1-1 if this is a medical emergency.
Or, something else?
I'm Listening
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
![Root + Sprig Ribbon Cutting](/sites/default/files/styles/featured_story/public/2024-03/scs-root-sprig-ribbon-cutting.jpg?h=98cef3bf&itok=INmG8Lst)
Catholic Health Opens Second Root & Sprig Restaurant at St. Catherine of Siena Hospital
Healthy eating options at new fast-casual restaurant.
![St. Catherine of Siena Ceremonial Ribbon Cutting](/sites/default/files/styles/featured_story/public/2024-06/scs-ed2-1-1.jpg?h=c9f93661&itok=7hyQpsRA)
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.
![George Marchelos St Catherine of Siena Wound Care](/sites/default/files/styles/featured_story/public/2024-04/george-marchelos-655x545.png?h=f8d4c038&itok=HX8zkXg_)
Specialized Care for Special Wounds
George Marchelos needed three amputations on his left foot due to an infection resulting from diabetes.
![John Murphy](/sites/default/files/styles/featured_story/public/2024-04/john-murphy-wound-care.jpg?h=fbf4b26c&itok=E-NC6F5b)
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
![St. Catherine of Siena Hospital Wound Care](/sites/default/files/styles/featured_story/public/2024-03/_dsc7713-enhanced-nr-copy.jpg?h=7f3b84c3&itok=ykZEX5k0)
A Journey Toward Healing With Hyperbaric Oxygen Therapy
Dawn Nilsson received hyperbaric oxygen (HBO) therapy for radiation proctitis
![theresa small and staff](/sites/default/files/styles/featured_story/public/2024-01/terri-small-and-team-web.jpg?h=8fd49f4e&itok=Lu5j0P21)
Living the Mission: Teresa Small
Teresa Small is a Dietetic Supervisor at St. Catherine of Siena Hospital.
![Nancy Hilsenbeck on mountain](/sites/default/files/styles/featured_story/public/2023-10/img_0243-1-1.jpg?h=502e75fa&itok=5sRiXCLf)
Back On Top After Breast Cancer Diagnosis
Nancy Hilsenbeck of Oakdale, NY, knows the importance of routine breast cancer screenings.