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Dr. Sergiu L. Marcus, MD, PhD

Accepting New Patients

(49 Ratings)

Specializes in: Vitreoretinal Diseases (Retina and Vitreous)

Jawaharlal Institute of Postgraduate Medical Education & Research (JIPMER) (1981)

Professional interests include: uveitis, cataracts, diabetes, and more.

601 Suffolk Avenue
Brentwood, NY 11717

(631) 231-4455

Dr. Sergiu L. Marcus, MD, PhD is a retina specialist in Brentwood, NY specializing in vitreoretinal diseases (retina and vitreous). He graduated from Jawaharlal Institute of Postgraduate Medical Education & Research (JIPMER) in 1981 and has 45 years of experience. Dr. Sergiu L. Marcus, MD, PhD is affiliated with Mount Sinai Health System, SightMD, SERGIU MARCUS MD PC and SIGHT MEDICAL DOCTORS PLLC.

Office Locations

601 Suffolk Avenue
Brentwood, NY 11717

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500 W Main Street Suite 210
Babylon, NY 11702

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805 Broadway Suite 106
Amityville, NY 11701

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Noteworthy Medicare Patient Procedures Performed by Dr. Sergiu L. Marcus, MD, PhD in 2023

Click on any procedure below to see further details on volume and pricing among Medicare patients.

Top 5%

By Volume:

eye procedures

focal photocoagulation for retinal lesion

photocoagulation

SCODI of the posterior segment

In 2023, Dr. Sergiu L. Marcus, MD, PhD performed more eye procedures, focal photocoagulation for retinal lesion, photocoagulation, and SCODI of the posterior segment (SCODI-P) procedures for Medicare patients than 95% of providers in related specialties within New York.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Sergiu L. Marcus, MD, PhD treated as a retina specialist in Brentwood, NY during 2012 were eye procedures, photocoagulation, injections and diagnostic imaging.

Volume of procedures performed by Dr. Sergiu L. Marcus, MD, PhD for Medicare patients.

diagnostic imaging	56
doctor visit	18
eye procedures	10831
injections	790
photocoagulation	929
ultrasound (sonogram)	56

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Sergiu L. Marcus, MD, PhD treated as a retina specialist in Brentwood, NY during 2013 were eye procedures, photocoagulation, injections and diagnostic imaging.

Volume of procedures performed by Dr. Sergiu L. Marcus, MD, PhD for Medicare patients.

diagnostic imaging	62
eye procedures	11598
injections	811
photocoagulation	982
ultrasound (sonogram)	62

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Sergiu L. Marcus, MD, PhD.

**Gender**
Male	707
Female	1214

**Ethnicity**
Non-Hispanic White	1172
Black	253
Hispanic	414
Asian	0
Other	41
Native American	0

**Age**
From 65 to 74	688
From 75 to 84	700
85 and over	367
Less than 65	166

Conditions of Medicare patients treated by Dr. Sergiu L. Marcus, MD, PhD in 2013

Hypertension	75
High Cholesterol	69
Stroke	7
Ischemic Heart Disease	50
Depression	13
Chronic Kidney Disease	27
Asthma	8
Osteoperosis	11
Atrial Fibrilation	11
Heart Failure	25
Chronic Obstructive Pulmonary Disease	13
Diabetes	61
Dementia	11
Cancer	10

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Sergiu L. Marcus, MD, PhD treated as a retina specialist in Brentwood, NY during 2014 were eye procedures, photocoagulation, injections and diagnostic imaging.

Volume of procedures performed by Dr. Sergiu L. Marcus, MD, PhD for Medicare patients.

diagnostic imaging	40
eye procedures	11377
injections	890
photocoagulation	928
ultrasound (sonogram)	40

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Sergiu L. Marcus, MD, PhD.

**Gender**
Male	696
Female	1134

**Ethnicity**
Non-Hispanic White	1146
Black	254
Hispanic	348
Asian	0
Other	46
Native American	0

**Age**
From 65 to 74	647
From 75 to 84	654
85 and over	354
Less than 65	175

Conditions of Medicare patients treated by Dr. Sergiu L. Marcus, MD, PhD in 2014

Hypertension	75
High Cholesterol	71
Stroke	7
Ischemic Heart Disease	50
Depression	15
Chronic Kidney Disease	28
Asthma	9
Osteoperosis	11
Atrial Fibrilation	12
Heart Failure	25
Chronic Obstructive Pulmonary Disease	14
Diabetes	59
Dementia	12
Cancer	10

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Sergiu L. Marcus, MD, PhD treated as a retina specialist in Brentwood, NY during 2015 were eye procedures, photocoagulation, injections and diagnostic imaging.

Volume of procedures performed by Dr. Sergiu L. Marcus, MD, PhD for Medicare patients.

diagnostic imaging	32
eye procedures	9519
injections	700
photocoagulation	836
ultrasound (sonogram)	32

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Sergiu L. Marcus, MD, PhD.

**Gender**
Male	1204
Female	1862

**Ethnicity**
Non-Hispanic White	1968
Black	406
Hispanic	558
Asian	0
Other	70
Native American	0

**Age**
From 65 to 74	1092
From 75 to 84	1124
85 and over	604
Less than 65	246

Conditions of Medicare patients treated by Dr. Sergiu L. Marcus, MD, PhD in 2015

Hypertension	75
High Cholesterol	71
Stroke	8
Ischemic Heart Disease	49
Depression	15
Chronic Kidney Disease	34
Asthma	12
Osteoperosis	9
Atrial Fibrilation	12
Heart Failure	24
Chronic Obstructive Pulmonary Disease	13
Diabetes	61
Dementia	12
Cancer	10

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Sergiu L. Marcus, MD, PhD treated as a retina specialist in Brentwood, NY during 2016 were eye procedures, photocoagulation, injections and diagnostic imaging.

Volume of procedures performed by Dr. Sergiu L. Marcus, MD, PhD for Medicare patients.

diagnostic imaging	43
eye procedures	9963
injections	715
photocoagulation	942
ultrasound (sonogram)	43

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Sergiu L. Marcus, MD, PhD.

**Gender**
Male	588
Female	968

**Ethnicity**
Non-Hispanic White	1026
Black	186
Hispanic	271
Asian	0
Other	38
Native American	0

**Age**
From 65 to 74	564
From 75 to 84	564
85 and over	311
Less than 65	117

Conditions of Medicare patients treated by Dr. Sergiu L. Marcus, MD, PhD in 2016

Hypertension	75
High Cholesterol	69
Stroke	6
Ischemic Heart Disease	44
Depression	15
Chronic Kidney Disease	39
Asthma	18
Osteoperosis	10
Atrial Fibrilation	12
Heart Failure	22
Chronic Obstructive Pulmonary Disease	14
Diabetes	60
Dementia	12
Cancer	10

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Sergiu L. Marcus, MD, PhD treated as a retina specialist in Brentwood, NY during 2017 were eye procedures, photocoagulation, injections and diagnostic imaging.

Volume of procedures performed by Dr. Sergiu L. Marcus, MD, PhD for Medicare patients.

diagnostic imaging	23
eye procedures	10064
injections	801
photocoagulation	1038
ultrasound (sonogram)	23

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Sergiu L. Marcus, MD, PhD.

**Gender**
Male	582
Female	958

**Ethnicity**
Non-Hispanic White	1009
Black	178
Hispanic	263
Asian	0
Other	48
Native American	0

**Age**
From 65 to 74	565
From 75 to 84	537
85 and over	324
Less than 65	114

Conditions of Medicare patients treated by Dr. Sergiu L. Marcus, MD, PhD in 2017

Hypertension	75
High Cholesterol	64
Stroke	7
Ischemic Heart Disease	43
Depression	17
Chronic Kidney Disease	42
Asthma	8
Osteoperosis	9
Atrial Fibrilation	12
Heart Failure	22
Chronic Obstructive Pulmonary Disease	14
Diabetes	61
Dementia	12
Cancer	10

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Sergiu L. Marcus, MD, PhD treated as a retina specialist in Brentwood, NY during 2018 were eye procedures, photocoagulation, injections and diagnostic imaging.

Volume of procedures performed by Dr. Sergiu L. Marcus, MD, PhD for Medicare patients.

diagnostic imaging	19
eye procedures	9761
injections	783
photocoagulation	973
ultrasound (sonogram)	19

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Sergiu L. Marcus, MD, PhD.

**Gender**
Male	546
Female	950

**Ethnicity**
Non-Hispanic White	987
Black	149
Hispanic	271
Asian	45
Other	0
Native American	0

**Age**
From 65 to 74	522
From 75 to 84	553
85 and over	313
Less than 65	108

Conditions of Medicare patients treated by Dr. Sergiu L. Marcus, MD, PhD in 2018

Hypertension	75
High Cholesterol	72
Stroke	6
Ischemic Heart Disease	45
Depression	16
Chronic Kidney Disease	41
Asthma	9
Osteoperosis	11
Atrial Fibrilation	13
Heart Failure	22
Chronic Obstructive Pulmonary Disease	14
Diabetes	59
Dementia	12
Cancer	11

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Sergiu L. Marcus, MD, PhD treated as a retina specialist in Brentwood, NY during 2019 were eye procedures, photocoagulation, injections and diagnostic imaging.

Volume of procedures performed by Dr. Sergiu L. Marcus, MD, PhD for Medicare patients.

diagnostic imaging	23
doctor visit	40
eye procedures	9514
injections	746
photocoagulation	1008
ultrasound (sonogram)	23

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Sergiu L. Marcus, MD, PhD.

**Gender**
Male	571
Female	973

**Ethnicity**
Non-Hispanic White	1030
Black	158
Hispanic	275
Asian	43
Other	0
Native American	0

**Age**
From 65 to 74	519
From 75 to 84	568
85 and over	335
Less than 65	122

Conditions of Medicare patients treated by Dr. Sergiu L. Marcus, MD, PhD in 2019

Hypertension	75
High Cholesterol	73
Stroke	8
Ischemic Heart Disease	48
Depression	18
Chronic Kidney Disease	43
Asthma	8
Osteoperosis	12
Atrial Fibrilation	13
Heart Failure	23
Chronic Obstructive Pulmonary Disease	14
Diabetes	57
Dementia	13
Cancer	11

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Sergiu L. Marcus, MD, PhD treated as a retina specialist in Brentwood, NY during 2020 were eye procedures, photocoagulation, injections and diagnostic imaging.

Volume of procedures performed by Dr. Sergiu L. Marcus, MD, PhD for Medicare patients.

diagnostic imaging	30
doctor visit	53
eye procedures	7486
injections	591
photocoagulation	899
ultrasound (sonogram)	30

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Sergiu L. Marcus, MD, PhD.

**Gender**
Male	479
Female	801

**Ethnicity**
Non-Hispanic White	868
Black	135
Hispanic	216
Asian	0
Other	34
Native American	0

**Age**
From 65 to 74	441
From 75 to 84	464
85 and over	277
Less than 65	98

Conditions of Medicare patients treated by Dr. Sergiu L. Marcus, MD, PhD in 2020

Hypertension	75
High Cholesterol	73
Stroke	7
Ischemic Heart Disease	48
Depression	18
Chronic Kidney Disease	41
Asthma	9
Osteoperosis	10
Atrial Fibrilation	12
Heart Failure	22
Chronic Obstructive Pulmonary Disease	13
Diabetes	56
Dementia	12
Cancer	11

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Sergiu L. Marcus, MD, PhD treated as a retina specialist in Brentwood, NY during 2021 were eye procedures, photocoagulation, injections and diagnostic imaging.

Volume of procedures performed by Dr. Sergiu L. Marcus, MD, PhD for Medicare patients.

diagnostic imaging	18
doctor visit	16
eye procedures	8184
injections	602
photocoagulation	1002
ultrasound (sonogram)	18

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Sergiu L. Marcus, MD, PhD.

**Gender**
Male	517
Female	803

**Ethnicity**
Non-Hispanic White	902
Black	139
Hispanic	214
Asian	0
Other	36
Native American	0

**Age**
From 65 to 74	474
From 75 to 84	487
85 and over	257
Less than 65	102

Conditions of Medicare patients treated by Dr. Sergiu L. Marcus, MD, PhD in 2021

Hypertension	75
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	47
Depression	17
Chronic Kidney Disease	39
Asthma	8
Osteoperosis	11
Atrial Fibrilation	13
Heart Failure	21
Chronic Obstructive Pulmonary Disease	12
Diabetes	54
Dementia	12
Cancer	12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Sergiu L. Marcus, MD, PhD treated as a retina specialist in Brentwood, NY during 2022 were eye procedures, photocoagulation, injections and diagnostic imaging.

Volume of procedures performed by Dr. Sergiu L. Marcus, MD, PhD for Medicare patients.

diagnostic imaging	14
doctor visit	34
eye procedures	8274
injections	645
photocoagulation	923
ultrasound (sonogram)	14

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Sergiu L. Marcus, MD, PhD.

**Gender**
Male	500
Female	814

**Ethnicity**
Non-Hispanic White	940
Black	116
Hispanic	193
Asian	22
Other	43
Native American	0

**Age**
From 65 to 74	446
From 75 to 84	495
85 and over	286
Less than 65	87

Conditions of Medicare patients treated by Dr. Sergiu L. Marcus, MD, PhD in 2022

Hypertension	75
High Cholesterol	75
Stroke	12
Ischemic Heart Disease	39
Depression	16
Chronic Kidney Disease	27
Asthma	11
Osteoperosis	18
Atrial Fibrilation	18
Heart Failure	17
Chronic Obstructive Pulmonary Disease	17
Diabetes	53
Dementia	9
Cancer	16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Sergiu L. Marcus, MD, PhD for Medicare patients.

The highest averages for the top procedures that Dr. Sergiu L. Marcus, MD, PhD treated as a retina specialist in Brentwood, NY were eye procedures, photocoagulation, injections and diagnostic imaging.

diagnostic imaging	32
doctor visit	32
eye procedures	9688
injections	734
photocoagulation	950
ultrasound (sonogram)	32

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Sergiu L. Marcus, MD, PhD.

**Gender**
Male	580
Female	952

**Ethnicity**
Black / African American	179
Asian / Pacific Islander	10
Non-Hispanic White	1004
Native American / Alaskan Native	0
Hispanic	274
Other	32

**Age**
75 to 84	558
85 and over	311
Less than 65	121
65 to 74	541

Average of Total of Conditions of Medicare patients treated by Dr. Sergiu L. Marcus, MD, PhD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Sergiu L. Marcus, MD, PhD treated were hypertension, high cholesterol, diabetes and ischemic heart disease.

Hypertension	68
High Cholesterol	64
Stroke	6
Ischemic Heart Disease	42
Depression	14
Chronic Kidney Disease	32
Asthma	9
Osteoporosis	10
Heart Failure	20
Chronic Obstructive Pulmonary Disease	12
Diabetes	52
Atrial Fibrillation	11
Dementia	10
Cancer	10

Education & Training

Dr. Sergiu L. Marcus, MD, PhD graduated from Jawaharlal Institute of Postgraduate Medical Education & Research (JIPMER) in 1981. He completed residency at Winthrop University Hospital. He is certified by the American Board of Ophthalmology and has a state license in New York.

Medical School: Jawaharlal Institute of Postgraduate Medical Education & Research (JIPMER) (1981)

Residency: Winthrop University Hospital

Board Certification: American Board of Ophthalmology

Licensed In: New York

Affiliations & Hospitals

Dr. Sergiu L. Marcus, MD, PhD is associated with these hospitals and organizations:

Mount Sinai Health System

SightMD

SERGIU MARCUS MD PC

SIGHT MEDICAL DOCTORS PLLC

Ratings & Reviews

Dr. Sergiu L. Marcus, MD, PhD has an exceptional overall rating with an average of 4.73 out of 5 stars based on 49 ratings. We collect ratings and reviews of Dr. Sergiu L. Marcus, MD, PhD from all over the web to help you find the right in Brentwood, NY.

4.73

Overall Rating

(49 Ratings)

Leave a Review

General Payments

These charts describe general payments received by Dr. Sergiu L. Marcus, MD, PhD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Regeneron Healthcare Solutions, Inc.	$1,320 Eylea $1,074	EYLEA HD $126	EYLEA (aflibercept) Injection $92	EYLEA aflibercept injection $28
Alimera Sciences, Inc.	$1,148 ILUVIEN $967	YUTIQ $76	$106
Mallinckrodt Hospital Products Inc.	$1,039 ACTHAR $1,039
Genentech USA, Inc.	$794 LUCENTIS $441	VABYSMO $310	SUSVIMO $23	$21
Allergan Inc.	$434 OZURDEX $254	RESTASIS $80	COMBIGAN $25	LUMIGAN $19	ACZONE $15	Other $42
Other	$2,418 OZURDEX $608	BEOVU $233	DEXYCU $186	YUTIQ $167	Cimerli $161	Other $1,062

**Types of Payments**
Food and Beverage	$6,897
Education	$256

Biography

Dr. Sergiu Marcus' area of specialization is vitreoretinal diseases (retina and vitreous). He is rated highly by his patients. These areas are among Dr. Marcus's clinical interests: macular degeneration, uveitis, and macular hole. After completing medical school at Jawaharlal Institute of Postgraduate Medical Education & Research (JIPMER), he performed his residency at Winthrop University Hospital, a hospital affiliated with Mount Sinai School of Medicine, and a hospital affiliated with Johns Hopkins University. Dr. Marcus is professionally affiliated with SightMD and Mount Sinai Health System. According to SightMD, new patients are welcome to contact his office in Amityville, NY.

Select Year:

Dr. Sergiu L. Marcus, MD, PhD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Sergiu L. Marcus, MD, PhD in 2023

By Volume:

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Sergiu L. Marcus, MD, PhD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Sergiu L. Marcus, MD, PhD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Sergiu L. Marcus, MD, PhD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Sergiu L. Marcus, MD, PhD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Sergiu L. Marcus, MD, PhD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Sergiu L. Marcus, MD, PhD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Sergiu L. Marcus, MD, PhD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Sergiu L. Marcus, MD, PhD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Sergiu L. Marcus, MD, PhD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Sergiu L. Marcus, MD, PhD in 2022

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Average Medicare Patient Data From 2012 - 2022

Average of Total of Conditions of Medicare patients treated by Dr. Sergiu L. Marcus, MD, PhD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

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