COVID-19 Vaccine

Click here to learn if you are eligible for the COVID-19 vaccine. 

Home

Catholic Health

No matter your health needs, you can count on our highly-awarded, compassionate network of care.

Learn more

Keeping You Safe During COVID-19

Learn More

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

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.

Learn More

Find a Doctor

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

Find

Locations & Directions

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

Map Your Directions

Request an Appointment

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

Start Here

CHS MyChart

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

Register Your Account Today

Donate

Help support CHS’s response to the coronavirus.

Donate Now

Keeping You Safe During COVID-19

Learn More

Browse Services and Programs

News & Events

Leapfrog Award Logo

St. Catherine of Siena Medical Center & St. Charles Hospital Both Receive an A Hospital Safety Grade from Leapfrog

December 17, 2020

St. Catherine of Siena Medical Center & St. Charles Hospital Both Receive an "A" from Leapfrog's Patient Safety Grade

Michael Silverman, COO, St. Catherine of Siena

Michael Silverman Named COO of St. Catherine of Siena Medical Center

March 5, 2020

Catholic Health Services (CHS) has named Michael Silverman, MBA, PT, as chief operating officer of St. Catherine of Siena Medical Center in Smithtown.