OUR NEW CENTER FOR HEALTH & WELLNESS IS NOW OPEN IN COMMACK

St. Catherine & St. Charles have collaborated in Commack, bringing superior services to a new neighborhood.

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THE FIRST AND ONLY BABY-FRIENDLY HOSPITAL IN SUFFOLK COUNTY

We believe in optimal nutrition–breastfeeding—and we ensure you have all the support you need before and after.

Supportive Maternity Services

 Advanced Vascular and Endovascular Services

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IT'S TIME TO SPRING INTO ACTION

Board "Walk" Your Way to Better Wellness at Sunken Meadow Beach.

Meet Us at The Beach!

Find a Doctor

Find a doctor affliated with CHS and St. Catherine of Siena Medical Center

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Locations & Directions

St. Catherine of Siena Medical Center is located at 50 Route 25A, Smithtown, New York

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Request an Appointment

Submit a simple appointment request online and one of our representatives will be in contact with you.

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CHS MyChart

Register with CHS eHealth, our secure electronic medical record (EMR) to access your health records.

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Browse Services and Programs

State-of-the-Art MRI Caring Suite

The MRI Caring Suite is the optimal personalized experience aimed at reducing anxiety.

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News & Events

St. Catherine Partners to Bring STEAM Education to Park View Elementary

March 20, 2018

Tell me and I’ll forget; show me and I may remember; involve me and I’ll understand." The old proverb captures the essence of St. Catherine of Siena Medical Center’s staff as they participated in the...

We're All Dressed in Blue for Colorectal Cancer Awareness

March 2, 2018

The staff at St. Catherine of Siena Medical Center wore their best blues on March 2, 2018 in support of Dress in Blue Day—a national tradition to support Colorectal Cancer Awareness Month celebrated...

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