Mount Sinai Doctors Long Island is a respected practice that has offered comprehensive health care to the people of Long Island since 1946. Our practice remains dedicated to providing personalized care, with a focus on prevention, early diagnosis, and treatment. With years of experience, our physicians offer care for a wide variety of conditions including cardiovascular, endocrine, gastrointestinal, kidney and many other disorders.

Our New Greenlawn Location Will Be Opening Soon

In order to better serve patients in the Huntington community, we will soon be opening a spacious, state-of-the-art office in Greenlawn. It will be home for 26 specialties—from asthma to urology—as well as radiology and laboratory services, all under one roof. As our practice expands, our new Greenlawn location will have a growing number of highly skilled physicians and provide the newest technologies and resources, including an advanced imaging center with Pet CT and MRI, as well as a women’s center that will offer 3D mammography and a dedicated mammographer/breast imager. Designed with our patients in mind, our new Greenlawn office will also feature conveniences to ensure a pleasant visit, from ample, on-site parking to a bright and inviting waiting room. Through this combination of medical technology and convenient services, we are committed to giving each patient who walks through our door the best possible care. Our offices in Nesconset, Commack, and Bay Shore will remain at their current locations with the same superb services currently offered.


Mount Sinai Doctors Long Island has been serving residents of the Huntington area since 1946. Our practice began with just three doctors, the first board-certified physicians in Suffolk County. Today we feature more than 70 physicians in 23 specialties, who continue to uphold our tradition of quality care. We have expanded with offices in Nesconset, Commack, and Bay Shore. In 1995, our practice, formerly known as North Shore Medical Group, became part of The Mount Sinai Hospital. Today, we provide easy access to the prominent specialists and latest treatment options offered by the entire Mount Sinai Health System. We actively support many community outreach programs and fundraise 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. You can rely on the team at Mount Sinai Doctors Long Island to be informed about the changing medical landscape and to provide quality medical care to the Suffolk County community.

Insurance Information

Mount Sinai Doctors Long Island physicians participate in Medicare and most major insurance plans, including but not limited to:
Aetna, Aetna Medicare Multiplan/PHCS
AgeWell NY No Fault
Cigna Healthcare NSLIJ Care Connect
Cigna/ Great West Oscar Insurance
Crystal Run Health Plan Oxford
Elderplan Oxford Liberty – SHOP
Empire Blue Cross/Blue Shield Railroad Medicare
Empire Blue Cross/Blue Shield MediBlue HMO, Pathway Tricare
Emblem Health – GHI & HIP Medicare United Healthcare
Hotel Trades Plan United Healthcare Compass- PPO only
Humana United Healthcare Medicare Complete
Island Group Administration United Healthcare Empire Plan
MagnaCare VNSNY Choice Health Plan
Medicaid – NY State Medicaid Workers’ Compensation
  If your plan is not listed, please feel free to contact the office for clarification.

Office Policies

  • We ask that you bring your insurance card and photo identification. Valid photo identification includes a driver’s license, state-issued identification card, or passport.
  • First-time patients will be asked to complete a series of forms.
  • If you are currently taking medication, please bring them with you or provide a detailed list that includes the name of the medication, your dosage, and the name of the prescribing doctor.
  • Please arrive 15 minutes before your scheduled appointment.