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Dr. Gary Greenwald, MD

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Specializes in: Emergency Medicine

2800 Marcus Avenue
New Hyde Park, NY 11042

(516) 622-6000

Dr. Gary Greenwald, MD is an emergency medicine doctor in New Hyde Park, NY specializing in emergency medicine.

Office Locations

2800 Marcus Avenue
New Hyde Park, NY 11042

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Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Gary Greenwald, MD treated as an emergency medicine doctor in New Hyde Park, NY during 2012 were emergency care.

Volume of procedures performed by Dr. Gary Greenwald, MD for Medicare patients.

emergency care	612

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Gary Greenwald, MD treated as an emergency medicine doctor in New Hyde Park, NY during 2013 were emergency care.

Volume of procedures performed by Dr. Gary Greenwald, MD for Medicare patients.

emergency care	738

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Greenwald, MD.

**Gender**
Male	291
Female	420

**Ethnicity**
Non-Hispanic White	577
Black	67
Hispanic	51
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	148
From 75 to 84	197
85 and over	259
Less than 65	107

Conditions of Medicare patients treated by Dr. Gary Greenwald, MD in 2013

Hypertension	75
High Cholesterol	72
Stroke	17
Ischemic Heart Disease	66
Depression	37
Chronic Kidney Disease	39
Asthma	14
Osteoperosis	8
Atrial Fibrilation	24
Heart Failure	47
Chronic Obstructive Pulmonary Disease	38
Diabetes	53
Dementia	36
Cancer	17

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Gary Greenwald, MD treated as an emergency medicine doctor in New Hyde Park, NY during 2014 were emergency care.

Volume of procedures performed by Dr. Gary Greenwald, MD for Medicare patients.

emergency care	285

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Greenwald, MD.

**Gender**
Male	122
Female	156

**Ethnicity**
Non-Hispanic White	220
Black	38
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	75
From 75 to 84	65
85 and over	100
Less than 65	38

Conditions of Medicare patients treated by Dr. Gary Greenwald, MD in 2014

Hypertension	75
High Cholesterol	69
Stroke	15
Ischemic Heart Disease	70
Depression	31
Chronic Kidney Disease	39
Asthma	16
Osteoperosis	9
Atrial Fibrilation	27
Heart Failure	51
Chronic Obstructive Pulmonary Disease	35
Diabetes	56
Dementia	43
Cancer	15

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Gary Greenwald, MD treated as an emergency medicine doctor in New Hyde Park, NY during 2015 were emergency care.

Volume of procedures performed by Dr. Gary Greenwald, MD for Medicare patients.

doctor visit	140
emergency care	167

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Greenwald, MD.

**Gender**
Male	250
Female	388

**Ethnicity**
Non-Hispanic White	556
Black	22
Hispanic	30
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	264
From 75 to 84	194
85 and over	120
Less than 65	60

Conditions of Medicare patients treated by Dr. Gary Greenwald, MD in 2015

Hypertension	69
High Cholesterol	69
Stroke	8
Ischemic Heart Disease	50
Depression	27
Chronic Kidney Disease	20
Asthma	22
Osteoperosis	13
Atrial Fibrilation	17
Heart Failure	21
Chronic Obstructive Pulmonary Disease	20
Diabetes	37
Dementia	19
Cancer	13

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Gary Greenwald, MD treated as an emergency medicine doctor in New Hyde Park, NY during 2016 were emergency care.

Volume of procedures performed by Dr. Gary Greenwald, MD for Medicare patients.

emergency care	483

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Greenwald, MD.

**Gender**
Male	162
Female	260

**Ethnicity**
Non-Hispanic White	343
Black	26
Hispanic	41
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	140
From 75 to 84	120
85 and over	102
Less than 65	60

Conditions of Medicare patients treated by Dr. Gary Greenwald, MD in 2016

Hypertension	75
High Cholesterol	68
Stroke	10
Ischemic Heart Disease	57
Depression	29
Chronic Kidney Disease	30
Asthma	33
Osteoperosis	12
Atrial Fibrilation	16
Heart Failure	28
Chronic Obstructive Pulmonary Disease	27
Diabetes	44
Dementia	25
Cancer	14

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Gary Greenwald, MD treated as an emergency medicine doctor in New Hyde Park, NY during 2017 were emergency care.

Volume of procedures performed by Dr. Gary Greenwald, MD for Medicare patients.

emergency care	482

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Greenwald, MD.

**Gender**
Male	164
Female	275

**Ethnicity**
Non-Hispanic White	372
Black	24
Hispanic	30
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	123
From 75 to 84	131
85 and over	127
Less than 65	58

Conditions of Medicare patients treated by Dr. Gary Greenwald, MD in 2017

Hypertension	75
High Cholesterol	67
Stroke	10
Ischemic Heart Disease	59
Depression	34
Chronic Kidney Disease	35
Asthma	15
Osteoperosis	9
Atrial Fibrilation	20
Heart Failure	36
Chronic Obstructive Pulmonary Disease	31
Diabetes	46
Dementia	27
Cancer	15

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Gary Greenwald, MD treated as an emergency medicine doctor in New Hyde Park, NY during 2018 were emergency care, minor procedures and wound repair (e.g. stitches).

Volume of procedures performed by Dr. Gary Greenwald, MD for Medicare patients.

emergency care	422
minor procedures	11
wound repair (e.g. stitches)	11

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Greenwald, MD.

**Gender**
Male	170
Female	229

**Ethnicity**
Non-Hispanic White	344
Black	0
Hispanic	24
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	115
From 75 to 84	114
85 and over	116
Less than 65	54

Conditions of Medicare patients treated by Dr. Gary Greenwald, MD in 2018

Hypertension	75
High Cholesterol	74
Stroke	13
Ischemic Heart Disease	57
Depression	36
Chronic Kidney Disease	31
Asthma	13
Osteoperosis	10
Atrial Fibrilation	16
Heart Failure	32
Chronic Obstructive Pulmonary Disease	27
Diabetes	46
Dementia	27
Cancer	17

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Gary Greenwald, MD treated as an emergency medicine doctor in New Hyde Park, NY during 2019 were emergency care.

Volume of procedures performed by Dr. Gary Greenwald, MD for Medicare patients.

emergency care	384

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Greenwald, MD.

**Gender**
Male	123
Female	233

**Ethnicity**
Non-Hispanic White	305
Black	14
Hispanic	23
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	120
From 75 to 84	99
85 and over	88
Less than 65	49

Conditions of Medicare patients treated by Dr. Gary Greenwald, MD in 2019

Hypertension	75
High Cholesterol	73
Stroke	11
Ischemic Heart Disease	52
Depression	36
Chronic Kidney Disease	32
Asthma	14
Osteoperosis	11
Atrial Fibrilation	16
Heart Failure	27
Chronic Obstructive Pulmonary Disease	26
Diabetes	45
Dementia	22
Cancer	16

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Gary Greenwald, MD treated as an emergency medicine doctor in New Hyde Park, NY during 2020 were emergency care.

Volume of procedures performed by Dr. Gary Greenwald, MD for Medicare patients.

emergency care	245

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Greenwald, MD.

**Gender**
Male	94
Female	145

**Ethnicity**
Non-Hispanic White	195
Black	17
Hispanic	14
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	90
From 75 to 84	61
85 and over	54
Less than 65	34

Conditions of Medicare patients treated by Dr. Gary Greenwald, MD in 2020

Hypertension	72
High Cholesterol	68
Stroke	9
Ischemic Heart Disease	54
Depression	31
Chronic Kidney Disease	34
Asthma	8
Osteoperosis	12
Atrial Fibrilation	19
Heart Failure	28
Chronic Obstructive Pulmonary Disease	21
Diabetes	41
Dementia	22
Cancer	11

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Gary Greenwald, MD treated as an emergency medicine doctor in New Hyde Park, NY during 2021 were emergency care.

Volume of procedures performed by Dr. Gary Greenwald, MD for Medicare patients.

emergency care	277

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Greenwald, MD.

**Gender**
Male	115
Female	153

**Ethnicity**
Non-Hispanic White	225
Black	0
Hispanic	19
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	95
From 75 to 84	82
85 and over	67
Less than 65	24

Conditions of Medicare patients treated by Dr. Gary Greenwald, MD in 2021

Hypertension	75
High Cholesterol	74
Stroke	15
Ischemic Heart Disease	57
Depression	30
Chronic Kidney Disease	38
Asthma	10
Osteoperosis	12
Atrial Fibrilation	18
Heart Failure	33
Chronic Obstructive Pulmonary Disease	24
Diabetes	38
Dementia	26
Cancer	13

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Gary Greenwald, MD treated as an emergency medicine doctor in New Hyde Park, NY during 2022 were emergency care.

Volume of procedures performed by Dr. Gary Greenwald, MD for Medicare patients.

emergency care	327

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Greenwald, MD.

**Gender**
Male	136
Female	176

**Ethnicity**
Non-Hispanic White	261
Black	12
Hispanic	23
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	89
From 75 to 84	124
85 and over	71
Less than 65	28

Conditions of Medicare patients treated by Dr. Gary Greenwald, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	19
Ischemic Heart Disease	43
Depression	28
Chronic Kidney Disease	19
Asthma	15
Osteoperosis	16
Atrial Fibrilation	27
Heart Failure	25
Chronic Obstructive Pulmonary Disease	26
Diabetes	37
Dementia	21
Cancer	21

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Gary Greenwald, MD treated as an emergency medicine doctor in New Hyde Park, NY during 2023 were emergency care.

Volume of procedures performed by Dr. Gary Greenwald, MD for Medicare patients.

emergency care	306

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Gary Greenwald, MD.

**Gender**
Male	115
Female	180

**Ethnicity**
Non-Hispanic White	256
Black	0
Hispanic	18
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	88
From 75 to 84	104
85 and over	80
Less than 65	23

Conditions of Medicare patients treated by Dr. Gary Greenwald, MD in 2023

Hypertension	75
High Cholesterol	75
Stroke	15
Ischemic Heart Disease	41
Depression	27
Chronic Kidney Disease	28
Asthma	16
Osteoperosis	18
Atrial Fibrilation	27
Heart Failure	24
Chronic Obstructive Pulmonary Disease	22
Diabetes	37
Dementia	16
Cancer	18

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Gary Greenwald, MD for Medicare patients.

The highest averages for the top procedures that Dr. Gary Greenwald, MD treated as an emergency medicine doctor in New Hyde Park, NY were emergency care, minor procedures and wound repair (e.g. stitches).

doctor visit	140
emergency care	394
minor procedures	11
wound repair (e.g. stitches)	11

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Gary Greenwald, MD.

**Gender**
Female	217
Male	145

**Ethnicity**
Black / African American	18
Asian / Pacific Islander	0
Non-Hispanic White	304
Hispanic	22
Native American / Alaskan Native	0
Other	0

**Age**
85 and over	98
75 to 84	107
Less than 65	44
65 to 74	112

Average of Total of Conditions of Medicare patients treated by Dr. Gary Greenwald, MD From 2012 - 2023

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

Hypertension	68
High Cholesterol	65
Stroke	11
Ischemic Heart Disease	50
Depression	28
Chronic Kidney Disease	28
Asthma	14
Osteoporosis	10
Heart Failure	29
Chronic Obstructive Pulmonary Disease	24
Diabetes	40
Atrial Fibrillation	18
Dementia	23
Cancer	14

Education & Training

He has a state license in New York.

Licensed In: New York

Ratings & Reviews

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General Payments

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

**Payments by Company**
Pfizer Inc.	$60 ZYVOX $41	ELIQUIS $19
Chiesi USA, Inc.	$24 CARDENE IV 20mg Sodium Chloride $24
AstraZeneca Pharmaceuticals LP	$23 BRILINTA $23
Actavis Pharma Inc	$18 DALVANCE $18