About Us

Whether you are due for a screening or need treatment for new symptoms, Mount Sinai Doctors-Long Island is pleased to provide convenient access to outstanding health care. Bringing the prominent specialists and advanced treatments of the Mount Sinai Health System home to Long Island, we make it easy for area residents to keep their health care on track. Our offices in Commack, Greenlawn, and Nesconset have more than 70 physicians in over 20 specialties, all providing a superb level of care, with a focus on prevention, early diagnosis, and personalized treatment.

Specializing in Custom Care

Our services are built around your needs; we can arrange appointments throughout our Long Island locations and the Mount Sinai Health System.

In addition to primary care, we provide exceptional services in cardiology, oncology, women’s health, and more. Our combined locations deliver a wide range of technologies and resources to our Long Island communities. Our Greenlawn practice houses an advanced imaging center with state-of-the-art equipment and offers PET scans, CT scans, digital X-rays, and wide-bore MRI. The Women’s Center provides 3D mammography, a dedicated mammographer/breast imager, and a wide range of OB/GYN services. Greenlawn also offers an onsite laboratory, as well as an infusion center that provides care for patients with cancer and blood disorders.

Serving Our Communities

Formerly the North Shore Medical Group—a respected practice operating since 1946—Mount Sinai Doctors-Long Island became part of Mount Sinai in 1995. We now actively support many community outreach programs and raise funds for charitable organizations. Our practice works with the Make-A-Wish Foundation® of Suffolk County, raising money and offering our facilities to further their cause.

Coming Soon

We are opening a new office in West Islip in September that will provide Cardiology and Electrophysiology services.

Schedule an Appointment

Thank you for your confidence in Mount Sinai Doctors-Long Island, where we strive to provide you with quality care and an excellent experience.

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