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Dr. Sergiu Marcus, MD

Ophthalmology* Age 77
Dr. Sergiu Marcus, MD
4.6 (53 Ratings)
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Dr. Sergiu Marcus, MD is an Ophthalmologist in Brentwood, NY.
Dr. Sergiu Marcus, MD
4.6 (53 Ratings)
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Dr. Sergiu Marcus, MD

Ophthalmology* Age 77
Brentwood, NY
Accepting new patients
43 years of experience
Dr. Sergiu Marcus, MD is an Ophthalmologist in Brentwood, NY.

About

Dr. Marcus graduated from CORNELL UNIVERSITY / NEW YORK STATE STATUTORY COLLEGES in 1981 and completed a residency at Mount Sinai Hospital.Dr. Sergiu Marcus, MD is an Ophthalmologist in Brentwood, NY and has 43 years experience. Dr. Marcus currently practices at SightMD and are affiliated with Good Samaritan Hospital Medical Center. Dr. Marcus has experience treating conditions like Age-Related Macular Degeneration and Diabetic Macular Edema (DME) among other conditions at varying frequencies. At present, Dr. Marcus received an average rating of 4.6/5 from patients and has been reviewed 53 times. Dr. Marcus' office accepts new patients. Dr. Marcus also speaks Spanish. Dr. Marcus is board certified in Ophthalmology and accepts multiple insurance plans.

Explains Conditions Well

Patients said this doctor explains conditions well.

Trustworthy

Patients said this doctor is trustworthy.

Friendly Staff

Patients said the staff was friendly.

Easy Scheduling

Patients said scheduling was easy.

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Experience Check

Enter a condition or procedure
Age-Related Macular Degeneration
Diabetic Macular Edema (DME)
Vitreoretinal Surgery
Age-Related Macular Degeneration
Diabetic Macular Edema (DME)
Age-Related Macular Degeneration
Diabetic Macular Edema (DME)
Vitreoretinal Surgery
Benign Neoplasm of Choroid
Benign Neoplasm of Eye
Chorioretinal Scars
Degenerative Disorders of Globe
Diabetic Retinopathy
Drusen
  • View other providers who treat Drusen
Dry Age-Related Macular Degeneration
Eye Cancer
Floaters
  • View other providers who treat Floaters
Hypertensive Retinopathy
Macular Hole
Macular or Retinal Edema
Progressive High Myopia
Retinal Detachment and Retinal Tear
Retinal Vascular Occlusion
Vitreous Hemorrhage
Wet Age-Related Macular Degeneration
Destruction of Lesion of Retina and Choroid
Disorder of Choroid
Retinoschisis
Repair of Retinal Detachment or Retinal Tear
Acute Endophthalmitis
All Headaches (incl. Migraine)
Aphakia and Other Disorders of Lens
Cataract
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Central Serous Chorioretinopathy
Chronic Endophthalmitis
Conjunctival Hemorrhage
Corneal Diseases
Dry Eyes
  • View other providers who treat Dry Eyes
Endophthalmitis
Eye Infections
Eye Melanoma
Eyelid Disorders
Foveal and Macular Hypoplasia
Glaucoma
  • View other providers who treat Glaucoma
Herpetic Keratitis
Iridocyclitis
Ischemic Optic Neuropathy
Keratitis
Lacrimal Gland Disorder
Lazy Eye
  • View other providers who treat Lazy Eye
Malignant Neoplasm of Eye
Migraine
  • View other providers who treat Migraine
Ocular Hypertension
Optic Neuritis
Pinkeye (Conjunctivitis)
Retinal Cysts
Retinal Dystrophy
Retinal Hemorrhage
Retinal Ischemia
Retinal Neovascularization
Retinitis Pigmentosa (RP)
Senile Cataracts
Strabismus
Visual Field Defects
Paracentesis of Anterior Eye
Accommodation Disorders
Acquired Coloboma
Allergic Conjunctivitis
Anisocoria
Anterior Ischemic Optic Neuropathy
Astigmatism
Bell's Palsy
Black Eye
Blepharitis
Blind Hypertensive Eye
Blind Hypotensive Eye
Blindness
Blocked Tear Duct
Chalazion
Chorioretinitis
Choroidal Dystrophy
Choroidal Hemorrhage Rupture
Choroidal Neovascular Membranes (CNVM)
Choroideremia
Chronic Conjunctivitis
Conjunctiva Cyst
Conjunctiva Degeneration Deposit
Contusion of the Eyeball
Corneal Abrasion or Laceration
Corneal Erosion
Corneal Ulcer
Diabetes
  • View other providers who treat Diabetes
Diplopia
  • View other providers who treat Diplopia
Dislocation of Lens
Disseminated Chorioretinitis and Disseminated Retinochoroiditis
Drooping Eyelids (Ptosis)
Ectropion of Eyelid
Entropion
Esotropia
Exophoria
Exotropia
Eye Pain
  • View other providers who treat Eye Pain
Eyeball Contusion
Eyelid Spasm
Farsightedness
Focal Chorioretinitis and Focal Retinochoroiditis
Foreign Body in Eye
Fuchs' Corneal Dystrophy
Headache
  • View other providers who treat Headache
Heterophoria
Hyphema
  • View other providers who treat Hyphema
Hypopyon
  • View other providers who treat Hypopyon
Hypotony of Eye
Idiopathic Intracranial Hypertension
Juvenile Macular Degeneration
Keratoconus
Macular Degeneration
Marfan Syndrome
Miosis
  • View other providers who treat Miosis
Nearsightedness
Nerve Sheath Tumors
Night Blindness
Nystagmus
Orbital Cellulitis
Orbital Fracture
Paralytic Strabismus
Pars Planitis
Pigment Dispersion Syndrome
Pinguecula
Pituitary Gland Cancer
Posterior Scleritis
Posterior Uveitis
Presbyopia
Pterygium
Purulent Endophthalmitis
Retinal Detachment
Retinal Tear
Retinal Telangiectasia
Retinal Vasculitis
Retinopathy of Prematurity (ROP)
Serous Conjunctivitis
Serous Detachment Retina
Solar Retinopathy
Staphyloma Posticum
Stye
  • View other providers who treat Stye
Tear Duct Disorders
Trichiasis
Ulcerative Blepharitis
Uveitis
  • View other providers who treat Uveitis
B-Scan Ultrasound
Cataract Removal Surgery
Contact Lens Fitting Services
Contact Lens Treatment
Cornea Surgery
Cyclocryotherapy
Eye Test
  • View other providers who treat Eye Test
Eyelid Surgery
Farnsworth Lantern Test
Foreign Body Removal from Eye
Glaucoma Surgery
Ocular Surface Reconstruction
Pterygium Surgery
Relaxing Corneal Incisions
Removal of Foreign Body from External Eye
Scleral Reinforcement Surgery
Ultrasound
Vision Screening
Vitrectomy

Insurance Accepted

* Please verify this information when scheduling an appointment.
  • Curative PPO Plus
    Curative EPO
    Curative PPO
  • Elderplan
  • Medicare
  • AARP
  • WellCare
  • Superior Vision
  • Blue Cross and Blue Shield
  • Medicaid
  • EyeMed
  • Meritain Health
  • First Health (Coventry Health Care)

Locations

  1. 1 SightMD
    601 Suffolk Ave, Brentwood, NY 11717
  2. 2 SightMD
    1500 Route 112 Bldg 6, Port Jefferson Station, NY 11776
  3. 3 SightMD
    805 Broadway Ste 106, Amityville, NY 11701
  4. 4 SightMD
    500 W Main St Ste 210, Babylon, NY 11702
  5. 5 SightMD
    500 Main St Ste 210, Westbury, NY 11590

Patient Satisfaction

Likelihood to recommend Dr. Marcus
4.6
Based on 53 Reviews
5 Stars (43)
4 Stars (5)
3 Stars (2)
2 Stars (2)
1 Star (1)

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How likely are you to recommend Dr. Marcus?

(Select your rating)
Patient Reviews
Dec 17, 2024
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.
— Dec 17, 2024
See more reviews on Healthgrades
Photo: Dr. Sergiu Marcus, MD
How would you rate your experience with Dr. Sergiu Marcus, MD?
  • Likelihood of recommending Dr. Marcus to family and friends

Dr. Marcus' Office & Staff

  • Ease of scheduling urgent appointments
  • Office environment, cleanliness, comfort, etc.
  • Staff friendliness and courteousness
  • Total wait time (waiting & exam rooms)

Experience with Dr. Marcus

  • Level of trust in provider's decisions
  • How well provider explains medical condition(s)
  • How well provider listens and answers questions
  • Hpends appropriate amount of time with patients

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About Me

Languages Spoken
Spanish
Languages Spoken
Specialties*
Ophthalmology
Specialties*
  • *Sharecare does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
Education

Education

Medical Education
  • CORNELL UNIVERSITY / NEW YORK STATE STATUTORY COLLEGES
    1981
Medical Education

Board Certifications

Board Certifications
  • Ophthalmology
Board Certifications
What’s a board certification and why is it important that my provider has one?

A board certification represents a provider’s dedication to ongoing training in one or more specialties, including the completion of intensive exams. While not all specialties have board certifications, if your provider does have one they’ve taken the extra step to master their specialty and to keep up with the latest advancements in their field.

Internship

Internship
  • Mount Sinai Hospital
    1982
Internship

Residency

Residency Hospital
  • Mount Sinai Hospital
    1985
Residency Hospital

Fellowship

Fellowship Hospital
  • The Johns Hopkins Hospital
    1985
Fellowship Hospital
Common Questions and Answers
Responses are sourced directly from patients.
Does Dr. Marcus communicate via email?
No responses yet.
Yes
(0)
No
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Does Dr. Marcus offer telehealth services or virtual visits?
No responses yet.
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No
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Does Dr. Marcus offer an online patient portal?
1 user said yes.
Yes
(1)
No
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Does Dr. Marcus have free onsite parking?
No users said yes.
Yes
(0)
No
(1)
Does Dr. Marcus offer weekend visits?
1 user said yes.
Yes
(1)
No
(0)
Does Dr. Marcus offer evening visits?
No users said yes.
Yes
(0)
No
(1)
Does Dr. Marcus specialize in working with children or adolescents?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Marcus specialize in working with seniors?
No responses yet.
Yes
(0)
No
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Does Dr. Marcus specialize in couples therapy?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Marcus specialize in working with LGBTQ+ community?
No responses yet.
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(0)
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Does Dr. Marcus accept insurance?
No responses yet.
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Frequently Asked Questions

Find contact information here to make an appointment.

A list of accepted insurance providers is available on the Sharecare insurance check. It is always a good idea to verify your insurance when making an appointment.

New patients are generally accepted by Dr. Sergiu Marcus, MD. To arrange an appointment, call the number on Dr. Marcus' profile.

Dr. Marcus frequently treats the following conditions: Age-Related Macular Degeneration and Diabetic Macular Edema (DME). See more on Sharecare.

Dr. Sergiu Marcus, MD is affiliated with Good Samaritan Hospital Medical Center.

Yes, Dr. Sergiu Marcus, MD holds board certification in Ophthalmology.

Hospital Affiliations

  • Good Samaritan Hospital Medical Center

    1000 Montauk Hwy, West Islip, NY