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Home > NY Providers > Ophthalmologists

Dr. Marc Andrew Horowitz, MD

(Marc Andrew Horowitz, MD)

(47 Ratings)

Specializes in: Ophthalmology (Eye Disease) and Pediatric Ophthalmology

Mount Sinai School of Medicine (1978)

440 Mamaroneck Avenue Suite 407
Harrison, NY 10528

(914) 723-5511

Dr. Marc Andrew Horowitz, MD is an ophthalmologist in Harrison, NY specializing in ophthalmology (eye disease) and pediatric ophthalmology. He graduated from Mount Sinai School of Medicine in 1978 and has 48 years of experience. Dr. Marc Andrew Horowitz, MD is affiliated with WMCHealth, Northwell Health Physician Partners and Northwell Health Eye Institute Wachenheim Center at Harrison.

Office Locations

440 Mamaroneck Avenue Suite 407
Harrison, NY 10528

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14 Harwood Court Suite 209 Scarsdale Ny
Scarsdale, NY 10583

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Noteworthy Medicare Patient Procedures Performed by Dr. Marc Andrew Horowitz, MD in 2024

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

Top 5%

By Volume:

ultrasound corneal pachymetry

In 2024, Dr. Marc Andrew Horowitz, MD performed more ultrasound corneal pachymetry procedures for Medicare patients than 95% of providers in related specialties within New York.

Top 10%

By Volume:

eye procedures

In 2024, Dr. Marc Andrew Horowitz, MD performed more eye procedures procedures for Medicare patients than 90% of providers in related specialties within New York.

Top 25%

By Volume:

SCODI of the posterior segment

By Affordability:

corneal pachymetry

ophthalmic ultrasound

ultrasound corneal pachymetry

ultrasound

In 2012, among providers in related specialties within New York, Dr. Marc Andrew Horowitz, MD performed more SCODI of the posterior segment (SCODI-P) procedures for Medicare patients than 75% of them and he also had a list price for corneal pachymetry (corneal thickness test), ophthalmic ultrasound, ultrasound corneal pachymetry, and ultrasound (sonogram) that was lower than the list prices billed to Medicare by 75% of them. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Marc Andrew Horowitz, MD treated as an ophthalmologist in Harrison, NY during 2012 were eye procedures and provocative tests.

Volume of procedures performed by Dr. Marc Andrew Horowitz, MD for Medicare patients.

doctor visit	41
eye procedures	1851
provocative tests	116

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Marc Andrew Horowitz, MD treated as an ophthalmologist in Harrison, NY during 2013 were eye procedures and provocative tests.

Volume of procedures performed by Dr. Marc Andrew Horowitz, MD for Medicare patients.

doctor visit	65
eye procedures	1965
provocative tests	301

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Marc Andrew Horowitz, MD.

**Gender**
Male	182
Female	352

**Ethnicity**
Non-Hispanic White	494
Black	11
Hispanic	0
Asian	0
Other	16
Native American	0

**Age**
From 65 to 74	218
From 75 to 84	195
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Marc Andrew Horowitz, MD in 2013

Hypertension	65
High Cholesterol	52
Stroke	2
Ischemic Heart Disease	27
Depression	10
Chronic Kidney Disease	12
Asthma	4
Osteoperosis	12
Atrial Fibrilation	11
Heart Failure	9
Chronic Obstructive Pulmonary Disease	9
Diabetes	20
Dementia	6
Cancer	13

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Marc Andrew Horowitz, MD treated as an ophthalmologist in Harrison, NY during 2014 were eye procedures and provocative tests.

Volume of procedures performed by Dr. Marc Andrew Horowitz, MD for Medicare patients.

doctor visit	52
eye procedures	2043
provocative tests	353

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Marc Andrew Horowitz, MD.

**Gender**
Male	197
Female	349

**Ethnicity**
Non-Hispanic White	504
Black	0
Hispanic	0
Asian	0
Other	22
Native American	0

**Age**
From 65 to 74	222
From 75 to 84	197
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Marc Andrew Horowitz, MD in 2014

Hypertension	64
High Cholesterol	50
Stroke	5
Ischemic Heart Disease	25
Depression	12
Chronic Kidney Disease	13
Asthma	5
Osteoperosis	11
Atrial Fibrilation	11
Heart Failure	10
Chronic Obstructive Pulmonary Disease	8
Diabetes	18
Dementia	6
Cancer	14

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Marc Andrew Horowitz, MD treated as an ophthalmologist in Harrison, NY during 2015 were eye procedures and provocative tests.

Volume of procedures performed by Dr. Marc Andrew Horowitz, MD for Medicare patients.

doctor visit	32
eye procedures	2150
provocative tests	412

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Marc Andrew Horowitz, MD.

**Gender**
Male	434
Female	708

**Ethnicity**
Non-Hispanic White	1030
Black	0
Hispanic	0
Asian	0
Other	62
Native American	0

**Age**
From 65 to 74	456
From 75 to 84	422
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Marc Andrew Horowitz, MD in 2015

Hypertension	63
High Cholesterol	51
Stroke	4
Ischemic Heart Disease	26
Depression	14
Chronic Kidney Disease	15
Asthma	7
Osteoperosis	10
Atrial Fibrilation	15
Heart Failure	10
Chronic Obstructive Pulmonary Disease	9
Diabetes	20
Dementia	5
Cancer	12

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Marc Andrew Horowitz, MD treated as an ophthalmologist in Harrison, NY during 2016 were eye procedures and provocative tests.

Volume of procedures performed by Dr. Marc Andrew Horowitz, MD for Medicare patients.

doctor visit	13
eye procedures	2307
provocative tests	454

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Marc Andrew Horowitz, MD.

**Gender**
Male	207
Female	392

**Ethnicity**
Non-Hispanic White	539
Black	0
Hispanic	11
Asian	0
Other	32
Native American	0

**Age**
From 65 to 74	253
From 75 to 84	215
85 and over	120
Less than 65	11

Conditions of Medicare patients treated by Dr. Marc Andrew Horowitz, MD in 2016

Hypertension	61
High Cholesterol	45
Stroke	3
Ischemic Heart Disease	24
Depression	14
Chronic Kidney Disease	14
Asthma	8
Osteoperosis	11
Atrial Fibrilation	10
Heart Failure	7
Chronic Obstructive Pulmonary Disease	6
Diabetes	15
Dementia	6
Cancer	15

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Marc Andrew Horowitz, MD treated as an ophthalmologist in Harrison, NY during 2017 were eye procedures.

Volume of procedures performed by Dr. Marc Andrew Horowitz, MD for Medicare patients.

eye procedures	2080

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Marc Andrew Horowitz, MD.

**Gender**
Male	222
Female	400

**Ethnicity**
Non-Hispanic White	550
Black	11
Hispanic	0
Asian	0
Other	46
Native American	0

**Age**
From 65 to 74	264
From 75 to 84	225
85 and over	121
Less than 65	12

Conditions of Medicare patients treated by Dr. Marc Andrew Horowitz, MD in 2017

Hypertension	61
High Cholesterol	40
Stroke	4
Ischemic Heart Disease	27
Depression	15
Chronic Kidney Disease	16
Asthma	5
Osteoperosis	12
Atrial Fibrilation	12
Heart Failure	9
Chronic Obstructive Pulmonary Disease	8
Diabetes	16
Dementia	7
Cancer	13

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Marc Andrew Horowitz, MD treated as an ophthalmologist in Harrison, NY during 2018 were eye procedures.

Volume of procedures performed by Dr. Marc Andrew Horowitz, MD for Medicare patients.

eye procedures	2244

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Marc Andrew Horowitz, MD.

**Gender**
Male	218
Female	416

**Ethnicity**
Non-Hispanic White	564
Black	11
Hispanic	0
Asian	0
Other	44
Native American	0

**Age**
From 65 to 74	287
From 75 to 84	217
85 and over	116
Less than 65	14

Conditions of Medicare patients treated by Dr. Marc Andrew Horowitz, MD in 2018

Hypertension	59
High Cholesterol	48
Stroke	3
Ischemic Heart Disease	23
Depression	14
Chronic Kidney Disease	17
Asthma	5
Osteoperosis	14
Atrial Fibrilation	12
Heart Failure	9
Chronic Obstructive Pulmonary Disease	6
Diabetes	16
Dementia	6
Cancer	11

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Marc Andrew Horowitz, MD treated as an ophthalmologist in Harrison, NY during 2019 were eye procedures.

Volume of procedures performed by Dr. Marc Andrew Horowitz, MD for Medicare patients.

eye procedures	2304

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Marc Andrew Horowitz, MD.

**Gender**
Male	254
Female	385

**Ethnicity**
Non-Hispanic White	572
Black	0
Hispanic	0
Asian	0
Other	44
Native American	0

**Age**
From 65 to 74	285
From 75 to 84	239
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Marc Andrew Horowitz, MD in 2019

Hypertension	60
High Cholesterol	50
Stroke	3
Ischemic Heart Disease	24
Depression	13
Chronic Kidney Disease	17
Asthma	5
Osteoperosis	13
Atrial Fibrilation	11
Heart Failure	9
Chronic Obstructive Pulmonary Disease	8
Diabetes	16
Dementia	7
Cancer	13

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Marc Andrew Horowitz, MD treated as an ophthalmologist in Harrison, NY during 2020 were eye procedures.

Volume of procedures performed by Dr. Marc Andrew Horowitz, MD for Medicare patients.

eye procedures	1604

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Marc Andrew Horowitz, MD.

**Gender**
Male	201
Female	327

**Ethnicity**
Non-Hispanic White	464
Black	0
Hispanic	0
Asian	0
Other	44
Native American	0

**Age**
From 65 to 74	252
From 75 to 84	189
85 and over	76
Less than 65	11

Conditions of Medicare patients treated by Dr. Marc Andrew Horowitz, MD in 2020

Hypertension	52
High Cholesterol	48
Stroke	3
Ischemic Heart Disease	25
Depression	13
Chronic Kidney Disease	16
Asthma	5
Osteoperosis	13
Atrial Fibrilation	8
Heart Failure	6
Chronic Obstructive Pulmonary Disease	5
Diabetes	13
Dementia	6
Cancer	13

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Marc Andrew Horowitz, MD treated as an ophthalmologist in Harrison, NY during 2021 were eye procedures.

Volume of procedures performed by Dr. Marc Andrew Horowitz, MD for Medicare patients.

eye procedures	2043

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Marc Andrew Horowitz, MD.

**Gender**
Male	219
Female	383

**Ethnicity**
Non-Hispanic White	530
Black	0
Hispanic	0
Asian	0
Other	53
Native American	0

**Age**
From 65 to 74	274
From 75 to 84	238
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Marc Andrew Horowitz, MD in 2021

Hypertension	56
High Cholesterol	50
Stroke	3
Ischemic Heart Disease	24
Depression	14
Chronic Kidney Disease	15
Asthma	6
Osteoperosis	16
Atrial Fibrilation	9
Heart Failure	7
Chronic Obstructive Pulmonary Disease	8
Diabetes	16
Dementia	4
Cancer	14

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Marc Andrew Horowitz, MD treated as an ophthalmologist in Harrison, NY during 2022 were eye procedures and ultrasound (sonogram).

Volume of procedures performed by Dr. Marc Andrew Horowitz, MD for Medicare patients.

eye procedures	1980
ultrasound (sonogram)	51

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Marc Andrew Horowitz, MD.

**Gender**
Male	223
Female	370

**Ethnicity**
Non-Hispanic White	512
Black	11
Hispanic	0
Asian	0
Other	56
Native American	0

**Age**
From 65 to 74	254
From 75 to 84	239
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Marc Andrew Horowitz, MD in 2022

Hypertension	64
High Cholesterol	71
Stroke	7
Ischemic Heart Disease	19
Depression	14
Chronic Kidney Disease	12
Asthma	7
Osteoperosis	21
Atrial Fibrilation	12
Heart Failure	6
Chronic Obstructive Pulmonary Disease	8
Diabetes	16
Dementia	3
Cancer	18

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Marc Andrew Horowitz, MD treated as an ophthalmologist in Harrison, NY during 2023 were eye procedures and ultrasound (sonogram).

Volume of procedures performed by Dr. Marc Andrew Horowitz, MD for Medicare patients.

eye procedures	2771
ultrasound (sonogram)	555

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Marc Andrew Horowitz, MD.

**Gender**
Male	257
Female	403

**Ethnicity**
Non-Hispanic White	569
Black	0
Hispanic	0
Asian	0
Other	67
Native American	0

**Age**
From 65 to 74	309
From 75 to 84	256
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Marc Andrew Horowitz, MD in 2023

Hypertension	62
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	21
Depression	13
Chronic Kidney Disease	11
Asthma	8
Osteoperosis	22
Atrial Fibrilation	14
Heart Failure	7
Chronic Obstructive Pulmonary Disease	9
Diabetes	17
Dementia	3
Cancer	17

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Marc Andrew Horowitz, MD treated as an ophthalmologist in Harrison, NY during 2024 were eye procedures and ultrasound (sonogram).

Volume of procedures performed by Dr. Marc Andrew Horowitz, MD for Medicare patients.

eye procedures	2938
ultrasound (sonogram)	440

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Marc Andrew Horowitz, MD.

**Gender**
Male	313
Female	482

**Ethnicity**
Non-Hispanic White	703
Black	13
Hispanic	0
Asian	0
Other	68
Native American	0

**Age**
From 65 to 74	359
From 75 to 84	325
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Marc Andrew Horowitz, MD in 2024

Hypertension	64
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	23
Depression	12
Chronic Kidney Disease	13
Asthma	7
Osteoperosis	24
Atrial Fibrilation	14
Heart Failure	9
Chronic Obstructive Pulmonary Disease	8
Diabetes	17
Dementia	4
Cancer	16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Marc Andrew Horowitz, MD for Medicare patients.

The highest averages for the top procedures that Dr. Marc Andrew Horowitz, MD treated as an ophthalmologist in Harrison, NY were eye procedures, ultrasound (sonogram) and provocative tests.

doctor visit	40
eye procedures	2175
provocative tests	327
ultrasound (sonogram)	348

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Marc Andrew Horowitz, MD.

**Gender**
Male	225
Female	382

**Ethnicity**
Black / African American	4
Asian / Pacific Islander	0
Non-Hispanic White	540
Hispanic	0
Native American / Alaskan Native	0
Other	42

**Age**
75 to 84	227
85 and over	33
Less than 65	3
65 to 74	264

Average of Total of Conditions of Medicare patients treated by Dr. Marc Andrew Horowitz, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Marc Andrew Horowitz, MD treated were hypertension, high cholesterol, ischemic heart disease and diabetes.

Hypertension	56
High Cholesterol	50
Stroke	3
Ischemic Heart Disease	22
Depression	12
Chronic Kidney Disease	13
Asthma	5
Osteoporosis	13
Heart Failure	7
Chronic Obstructive Pulmonary Disease	7
Diabetes	15
Atrial Fibrillation	10
Cancer	13
Dementia	4

Education & Training

Dr. Marc Andrew Horowitz, MD graduated from Mount Sinai School of Medicine in 1978. He completed residency at St. Luke's-Roosevelt Hospital Center. He is certified by the Board Certification: Ophthalmology and has a state license in New York.

Medical School: Mount Sinai School of Medicine (1978)

Residency: St. Luke's-Roosevelt Hospital Center (1982)

Board Certification: Board Certification: Ophthalmology

Licensed In: New York

Insurance Information

Please note: Insurance information may change at any time, and the provider may accept your insurance plan even if it is not listed below. Please contact the provider's office to confirm that your insurance is accepted.

Dr. Marc Andrew Horowitz, MD appears to accept the following insurance providers: EmblemHealth (GHI), Humana, Healthfirst, MVP, EmblemHealth (HIP), United Healthcare, Senior Whole Health, EmblemHealth Insurance Company (fka HIP Insurance Company of New York) HIPIC, Cigna, Affinity by Molina Healthcare, Empire BlueCross BlueShield (32BJ), NYS Empire Plan (NYSHIP), Elderplan, VISION, Medicaid, MagnaCare, Medicare, VNS Health, Railroad Medicare, Humana Military (Tricare), Aetna, VillageCareMax, Anthem Blue Cross and Blue Shield (Empire BCBS), Anthem HealthPlus, Northwell Direct, AmidaCare, CenterLight, WTC (World Trade Center Program), Oxford, US Family Health Plan and 1199 SEIU.

Insurance Accepted by Provider includes:

According to our sources, Dr. Marc Andrew Horowitz, MD accepts the following insurance providers:

EmblemHealth (GHI)

Humana

Healthfirst

MVP

EmblemHealth (HIP)

United Healthcare

Senior Whole Health

EmblemHealth Insurance Company (fka HIP Insurance Company of New York) HIPIC

Cigna

Affinity by Molina Healthcare

Empire BlueCross BlueShield (32BJ)

NYS Empire Plan (NYSHIP)

Elderplan

VISION

Medicaid

MagnaCare

Medicare

VNS Health

Railroad Medicare

Humana Military (Tricare)

Aetna

VillageCareMax

Anthem Blue Cross and Blue Shield (Empire BCBS)

Anthem HealthPlus

Northwell Direct

AmidaCare

CenterLight

WTC (World Trade Center Program)

Oxford

US Family Health Plan

1199 SEIU

Ratings & Reviews

Dr. Marc Andrew Horowitz, MD has an exceptional overall rating with an average of 4.86 out of 5 stars based on 47 ratings. We collect ratings and reviews of Dr. Marc Andrew Horowitz, MD from all over the web to help you find the right in Harrison, NY.

4.86

Overall Rating

(47 Ratings)

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General Payments

These charts describe general payments received by Dr. Marc Andrew Horowitz, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.