WE'RE TRANSFORMING NEUROSURGERY WITH REAL TIME IMAGING

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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 SERVICES

Our expert physicians are using contemporary techniques to treat complex conditions.

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BREAST HEALTH CARE—BE MINDFUL STARTING NOW.

Learn from our expert care team, including a breast radiologist, breast surgical oncologist and reconstructive/cosmetic breast surgeon.

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Great Place to Work

Our employees have spoken! Newsday has named CHS a 2018 Top Workplace on Long Island. See what makes our employees the heart and soul of CHS. Join our team!

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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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Browse Services and Programs

Newsday Names CHS a Top Workplace on Long Island!

See what makes our employees the heart and soul of CHS. Join our team!

Read More

News & Events

Go-Red for Heart Health Month

February 4, 2019

On Friday, February 1, 2019, St. Catherine of Siena Medical Center participated in the American Heart Association’s signature women’s heart health initiative—Go Red Day. On Go Red day, celebrated...

Siena HealthLink Series - Internal Medicine

January 31, 2019

Farzana Aziz, MD, board certified in Internal Medicine, helps community members understand the importance of a preventive wellness exam.

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