Home

CHS Is Keeping You Safe

Learn More

WE'RE TRANSFORMING NEUROSURGERY WITH REAL TIME IMAGING

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

CHS Is Keeping You Safe

Learn More

Browse Services and Programs

News & Events

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.

St. Catherine of Siena Completes CDC’s EMPower Training for Breastfeeding

October 16, 2019

St. Catherine of Siena is the only Baby-Friendly designated hospital in Suffolk County. The maternity division earned the prestigious designation in 2017, and culminates the hospital’s commitment to sustain the three leading tenants of the Baby-Friendly philosophy, which is to support: