Brand Certified
Sergiu Marcus, MD: SightMD NY — Brentwood, New York
Certified by Sergiu Marcus, MD: SightMD NY — Brentwood, New York • Apr 12, 2026
Business Details
601 Suffolk Ave, Brentwood, NY
11717, United States
Certified by Sergiu Marcus, MD: SightMD NY — Brentwood, New York • Apr 12, 2026
(631) 625-6660
Certified by Sergiu Marcus, MD: SightMD NY — Brentwood, New York • Apr 12, 2026
https://www.sightmd.com/our-doctors/sergiu-marcus-md/?utm_source=yext&utm_medium=local_listings
Certified by Sergiu Marcus, MD: SightMD NY — Brentwood, New York • Apr 12, 2026
About
Certified by Sergiu Marcus, MD: SightMD NY — Brentwood, New York • Apr 12, 2026
OphthalmologyEye Care Center
Sergiu Marcus, MD, PhD is a board certified ophthalmologist specializing in vitreo-retinal disorders of the eye. Dr. Marcus has always believed in delivering the highest quality of care to the community in which he practices. He provides the most up to date testing, diagnosis, and treatment to all of his patients at every visit.
Location
Certified by Sergiu Marcus, MD: SightMD NY — Brentwood, New York • Apr 12, 2026
Sergiu Marcus, MD: SightMD NY — Brentwood, New York
601 Suffolk Ave, Brentwood, NY
11717, United States
Hours
Certified by Sergiu Marcus, MD: SightMD NY — Brentwood, New York • Apr 12, 2026
Monday7:30 AM - 6:00 PM
Tuesday7:30 AM - 6:30 PM
Wednesday7:30 AM - 7:00 AM
Thursday7:30 AM - 6:30 PM
Friday7:30 AM - 6:30 PM
Saturday7:30 AM - 1:00 PM
Sunday9:00 AM - 1:00 PM
Frequently Asked Questions About Sergiu Marcus, MD: SightMD NY — Brentwood, New York
What are the office hours for Sergiu Marcus, MD - SightMD Brentwood?
The office is open Monday through Friday from 7:30 AM to 6:30 PM (Wednesday closes earlier at 7:00 PM), Saturday from 7:30 AM to 1:00 PM, and Sunday from 9:00 AM to 1:00 PM. Hours are subject to change, so please call to confirm.
Where is Sergiu Marcus, MD - SightMD Brentwood located?
The office is located at 601 Suffolk Ave, Suite 104, Brentwood, NY 11717, USA.
What specialties does Dr. Sergiu Marcus offer?
Dr. Sergiu Marcus is a board certified ophthalmologist specializing in vitreo-retinal disorders of the eye, delivering up-to-date testing, diagnosis, and treatment.
How can I make an appointment with Sergiu Marcus, MD - SightMD Brentwood?
You can make an appointment by visiting their contact page at https://www.sightmd.com/contact-us/?utm_source=yext&utm_medium=local+listings
What phone numbers can I use to contact Sergiu Marcus, MD - SightMD Brentwood?
You can reach them at their local/main phone number +1 631-625-6660 or their alternate/toll-free number +1 855-295-4144.
Does Sergiu Marcus, MD - SightMD Brentwood have a presence on social media?
Yes, they are on Facebook at facebook.com/SightMD/, on Instagram with the handle 'sightmd', on TikTok at tiktok.com/@sight_md, and on YouTube at their SightMD channel.
Which nearby ophthalmologists and eye care clinics are close to Sergiu Marcus, MD - SightMD Brentwood?
Nearby eye care professionals include Raju Sarwal, M.D., Edward M. Riegel, MD, Neil Nichols, M.D., Shetal Shah, MD, Vivian Renta-Skyer, O.D., John Passarelli, M.D., and Edward Marcus, M.D., as well as Brentwood Vision Center and the Long Island Eye Surgery Center.
Are there nearby public transit options or bus services near Sergiu Marcus, MD - SightMD Brentwood?
Yes, the Vivek Kumar bus service operates nearby, which can help patients access the clinic conveniently.
What other healthcare services are available near Sergiu Marcus, MD - SightMD Brentwood?
Close to the clinic, you will find Long Island Women's Services, Brentwood Chiropractic Associates, Robert A. Klein, DPM, Joseph Xerri, MD, various laboratory testing centers like Sunrise Medical Laboratories and Laboratory Corporation of America, as well as other specialty doctors and health providers.
Are there other services like insurance and legal offices near Sergiu Marcus, MD - SightMD Brentwood?
Yes, nearby there are insurance agencies such as Allstate Insurance Agent: Steven Grosse and Steven Grosse: Allstate Insurance, as well as legal services including Aheran Law Office and Villacorta Law Group P.C.
Brand Certified Facts from Sergiu Marcus, MD: SightMD NY — Brentwood, New York
This information is certified by Sergiu Marcus, MD: SightMD NY — Brentwood, New York and published from the brand's official system of record. Data is distributed through an enterprise-grade knowledge management platform. Learn more about our data sources
Certified April 12, 2026Yext Knowledge Graph
- Address
- Categories
- Geo coordinates
- Legal business name
- Hours of operation
- Phone number
- Official website