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Dr. Sergiu Marcus, MD

Dr. Sergiu Marcus, MD

Ophthalmology*
40+ years of experience

Dr. Sergiu Marcus, MD is an ophthalmologist in Brentwood, NY and has over 40 years of experience in the medical field. He graduated from CORNELL UNIVERSITY / NEW YORK STATE STATUTORY COLLEGES in 1981. He is affiliated with Good Samaritan Hospital Medical Center. He is accepting new patients.

4.6 Star Rating
Based on 53 reviews 4.6 Star Rating (53 reviews)

SightMD

601 Suffolk Ave Brentwood, NY 11717

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Dr. Marcus' Reviews

Likelihood to recommend Dr. Marcus

4.6
53 ratings, 47 with a written review
5 star
81%
81%
4 star
9%
9%
3 star
4%
4%
2 star
4%
4%
1 star
2%
2%

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Dr. Marcus is an outstanding surgeon
I do not like the corporatization of the medical profession, Sight MD, however,, that being being said, Dr. Marcus is an outstanding, skilled surgeon. He has saved the sight in both my eyes having performed several retinal surgeries. I highly recommend him.
What went well
  • I felt respected
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
  • Long wait times
Helpful
Dec 17, 2024
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Have no complaints he’s very good
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
Helpful
I D. – Oct 05, 2024
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The doctor did a complete exam and testing of my eyes. Explain everything from beginning to end so I was very satisfied and told me how to fix my problems with my eyes
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Kathaleen A. – Mar 09, 2024
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I’ve been going to Dr Marcus for a while, getting laser, surgery and shots in my eye. He follows the exact same protocol. Every time he kept me from losing my vision, which is very important for you to trust your eye doctor.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Joseph B. – Feb 02, 2024
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No issues
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Anthony C. – Feb 02, 2024
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Satisfied
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Biviana R. – Dec 21, 2023
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I have AMD and Dr. Marcus always takes the time to be sure my disease doesn’t get any worse.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
  • Long wait times
Helpful
Immaculate V. – Aug 19, 2023
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Dr Marcus gives me excellent care
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Richard P. – Feb 13, 2023
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It was good experience
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Trusted the provider's decisions
What could be improved
  • Long wait times
Helpful
Gulnaz T. – Jan 31, 2023
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It was a good appointment Experience was not to bad. Doctor was precise in what he did.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
  • Long wait times
Helpful
B. B. – Nov 29, 2022
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Diagnosis and follow up scheduled
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Salvatore B. – Aug 19, 2022
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Well trained facilities. Dr. Marcus was the best.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Anonymous – Jul 26, 2022
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Satisfactory
What went well
  • Appointment scheduling
  • Explained conditions well
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Anita D. – Jul 26, 2022
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The only problem I had was the LONG WAIT seems the internet was either down (again) or just slow. must up grade their system as this isn't the first time this happened
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
  • Long wait times
Helpful
Anonymous – Jul 21, 2022
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Thank goodness so good service
What went well
  • Office environment
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Jose S. A. – Jul 13, 2022
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Positive
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
  • Long wait times
Helpful
Carol B. – Jul 01, 2022
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I have known Dr Marcos for three decades and at this visit I asked him how is my macula ?. He took the time to show me on the computer the scan image and explain what it meant.
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
Helpful
F. S. – Jun 16, 2022
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He explained what he was doing and my discomfort from it. I was very satisfied.
What went well
  • Office environment
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
  • Long wait times
Helpful
Marion M. – May 11, 2022
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Very informative
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
Helpful
William F. – May 08, 2022
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Very professional
What went well
  • Office environment
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Rosa A. – Apr 24, 2022
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About Me

care philosophy

Sergiu Marcus, MD, PhD is a board certified ophthalmologist specializing in vitreo-retinal disorders of the eye.

biography

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...read more
  • Ophthalmology

*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

  • Mount Sinai Hospital

    Residency Hospital, 1985
  • The Johns Hopkins Hospital

    Fellowship Hospital, 1985
  • Mount Sinai Hospital

    Internship Hospital, 1982
  • Cornell University / New York State Statutory Colleges

    Medical School, 1981
American Board of Medical Specialties®
American Board of Ophthalmology®
Ophthalmology
For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.
  • English

  • Spanish

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Locations

SightMD

SightMD601 Suffolk Ave Brentwood, NY 11717
1
SightMD500 W Main St Ste 210 Babylon, NY 11702
2
SightMD805 Broadway Ste 106 Amityville, NY 11701
3
SightMD1500 Route 112 Bldg 6 Port Jefferson Station, NY 11776
4

Affiliated Hospitals

  • Good Samaritan Hospital Medical Center

    1000 Montauk Hwy
    West Islip, NY 11795
    Recipient of 4
    hospital awards

    How patients felt about the care they received at this hospital.

    83%
    Patients said they were given information about recovering at home

    1% lower than the national average

    71%
    Patients said that nurses always listened to them and explained things well

    4% lower than the national average

    View all patient feedback
Learn more about how Healthgrades measures Hospital Quality