Dr. Stephen T. Onesti

For every accident and illness, for every health challenge you face, and for support in helping you stay as healthy as possible, Mount Sinai South Nassau is dedicated to serving you. We’re your neighbors here on the South Shore. We have an impressive range of services both at our hospital and at our many locations in the communities we serve. But our clearest commitment comes in the form of people — the staff and physicians who have made your health care their life’s work.

And so our mission is clear: to bring you a full range of high-quality health care right here, close to your work, home, family and friends. Connect with us today.