SG
Accepting patients
Online booking
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Gelnick, Retina Specialist in Smithtown, NY?
Dr. Samuel Gelnick, MD is a Retina Specialist, who primarily practices in Smithtown, NY with 2 additional practice locations. Dr. Gelnick is fluent in English, and is currently seeing new patients. Dr. Gelnick’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Gelnick’s office at (718) 226-8313.
What languages does Dr. Gelnick speak?
Dr. Gelnick and their clinical team can communicate with patients in the following languages:
English
What conditions does a Retina Specialist like Dr. Gelnick typically treat?
As a Retina Specialist, Dr. Gelnick diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Gelnick. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.
Also known as:
- Type 2 Diabetes
- Diabetes Type 2
- Type 2 diabetes
- Diabetes Mellitus Type 2
- Adult-Onset Diabetes
- Non-Insulin Dependent Diabetes
ICD-10 Codes:
- E119: Type 2 diabetes mellitus without complications
What procedures does a Retina Specialist like Dr. Gelnick typically perform?
As a Retina Specialist, procedures performed by Dr. Samuel Gelnick may include:
- Cataract Removal
- Corneal Specialist Consultation
- Corneal Specialist Follow Up
- Dark Adaptometry
- Diabetes Care - Eye Exam
- Electro-oculography (EOG)
- Electroretinography (ERG)
- Eye Emergency Visit
Please contact Dr. Gelnick's office directly to confirm care for your specific procedure, for more information, or to schedule a consultation.
Does Dr. Gelnick accept my insurance?
Dr. Gelnick accepts most major insurance plans. Important: Please call our office at (718) 226-8313 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Gelnick accept in Smithtown, NY?
Dr. Gelnick in Smithtown, NY accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Cigna Group
CVS Health (formerly Aetna)
Medicare
Service Employees International Union (SEIU)
Unknown
View All Insurances
Where is Dr. Gelnick's office located?
Dr. Samuel Gelnick's Primary Practice
260 E Middle Country Rd Ste 201
Smithtown, NY 11787
(718) 226-8313
Would you like to schedule an appointment with Dr. Samuel Gelnick?
Dr. Gelnick has appointments available at his Smithtown, NY office, as well as 2 other locations. Please select a location, date, and time below.
What is Dr. Gelnick's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Gelnick's National Provider Identifier (NPI) number is 1285196592.
What common questions do patients ask about Dr. Gelnick?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Gelnick
What is Dr. Samuel Gelnick's specialty?
Dr. Gelnick is a Retina Specialist near Smithtown, NY.
What does a Retina Specialist do?
An ophthalmologist specializing in vitreoretinal diseases focuses on diagnosing and treating conditions affecting the vitreous and retina, including issues such as retinal detachment, diabetic retinopathy, and macular degeneration. This specialist employs advanced medical and surgical techniques to manage these complex eye conditions.
Is this Dr. Samuel Gelnick affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Gelnick is affiliated with Suny Downstate Medical Center (university Hospital Of Brooklyn) which is a Castle Connolly Top Hospital. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
When to see a Retina Specialist?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see a Retina Specialist. Explore insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Samuel Gelnick accepting new patients in Smithtown, NY?
Yes, Dr. Samuel Gelnick is accepting new patients at this time.
Does Dr. Samuel Gelnick offer online booking?
Yes, you can use online booking to schedule an appointment with Dr. Gelnick, or call (718) 226-8313 for more information.
How can I make an appointment with Samuel Gelnick?
Please contact Dr. Gelnick's office at (718) 226-8313 for information regarding telehealth appointment availability or for scheduling assistance.
Other Retina Specialist Near Smithtown, NY
ZZ
Retina Specialist
Dr. Zimei Zhou, MD, PHD is a Retina Specialist, who primarily practices in Smithtown, NY with 2 additional practice locations.
Smithtown, NY

Dr. Norman Saffra, MD is a Retina Specialist, who primarily practices in Brooklyn, NY with 2 additional practice locations. He has been practicing for over 31 years and is board certified.
Brooklyn, NY
JT
Retina Specialist
Dr. Joseph Tseng, MD is a Retina Specialist, who primarily practices in New York, NY with 2 additional practice locations. He has been practicing for over 14 years and is board certified.
New York, NY