Mount Sinai Doctors–Long Island

We provide the highest quality care at locations in Greenlawn, Huntington, Nesconset, Commack, and Bay Shore. Offering more than 20 specialties, our experts combine advanced treatments with personalized attention. 

The Mission

Welcome to Mount Sinai Doctors Long Island. Our board-certified physicians serve patients of all ages throughout Greenlawn, Huntington, Nesconset, Commack, Bay Shore, and the surrounding communities.

Our physicians have credentials at The Mount Sinai Hospital in Manhattan and at many Long Island hospitals and surgical centers.  

We have a new Advanced Radiation Centers of New York location at Greenlawn. This allows us to treat a wide range of cancers with leading-edge technologies. One of these approaches is Intensity Modulated Radiation Therapy (IMRT). IMRT delivers high-dose radiation to a precise target. It minimizes damage to healthy tissue.

Request an Appointment

At Mount Sinai Doctors Long Island, we pride ourselves on maintaining a lifelong relationship with you and your family. Patients start off in our pediatric and adolescent medicine department and move into our primary care department, where we provide care for adults of all ages. Through every stage of life, our specialists provide the individualized care needed to suit your circumstances. 


5 Cuba Hill Road
Greenlawn, NY 11740

Phone: 631-628-5000

61 Southern Boulevard
Nesconset, NY 11767
Phone: Cardiology – 631-659-1800
Phone: Gastroenterology – 631-659-1850

66 Commack Road
Commack, NY 11725

Phone: 631-659-1620

61 East Main Street
Bay Shore, NY 11706

Phone: 631-659-1600

Advanced Radiation Centers of New York
5 Cuba Hill Road, Suite 400
Greenlawn, NY 11740

Update on the Novel Coronavirus (COVID-19)

Read about Mount Sinai Health System's response to this newly discovered disease, and what you need to know

On Call 24/7

Our physicians and staff are committed to providing the most comprehensive care for our patients.
Access to a physician is available 24/7.

Cuba Hill Road, Greenlawn

59 Southern Boulevard Nesconset

61 Southern Boulevard Nesconset,

66 Commack Road Commack

61 East Main Street Bay Shore