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Home > NY Providers > Gastroenterologists

Dr. Gregory Mark Ackert, MD

(Gregory Mark Ackert)

(No ratings)

Specializes in: Gastroenterology (Digestive System), General Practice and Adult Gastroenterology

New York University (NYU) School of Medicine (1978)

Professional interests include: influenza (flu)

1983 Marcus Avenue Suite 124
Lake Success, NY 11042

(516) 627-2121

Dr. Gregory Mark Ackert, MD is a gastroenterologist in Lake Success, NY specializing in gastroenterology (digestive system), general practice and adult gastroenterology. He graduated from New York University (NYU) School of Medicine in 1978 and has 48 years of experience. Dr. Gregory Mark Ackert, MD is affiliated with NYU Langone Health and Gastroenterology, Ambulatory Care at Lake Success.

Office Locations

4 Ohio Drive
Lake Success, NY 11042

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NYU Langone Health

1983 Marcus Avenue Suite 124
Lake Success, NY 11042

(516) 627-2121

(516) 627-4922

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Noteworthy Medicare Patient Procedures Performed by Dr. Gregory Mark Ackert, MD in 2023

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

Top 10%

By Affordability:

diagnostic EGD

diagnostic upper endoscopy

EGD with biopsy

EGD with lesion removal

esophagogastroduodenoscopy

therapeutic EGD

therapeutic upper endoscopy

upper endoscopy

upper endoscopy with biopsy

upper endoscopy with lesion removal

In 2023, Dr. Gregory Mark Ackert, MD had a list price for diagnostic EGD, diagnostic upper endoscopy, EGD with biopsy, EGD with lesion removal, esophagogastroduodenoscopy (EGD), therapeutic EGD, therapeutic upper endoscopy, upper endoscopy, upper endoscopy with biopsy, and upper endoscopy with lesion removal that was lower than the list prices billed to Medicare by 90% of providers in related specialties within New York. 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. Gregory Mark Ackert, MD treated as a gastroenterologist in Lake Success, NY during 2012 were lab tests, hospital care, inpatient care and removal of lesion (e.g. growth).

Volume of procedures performed by Dr. Gregory Mark Ackert, MD for Medicare patients.

blood draw	46
diagnostic procedures	215
doctor visit	1183
gastrointestinal procedures	215
hospital care	273
inpatient care	273
lab tests	511
minimally invasive procedures	215
preventive care	215
pulmonary testing	32
removal of lesion (e.g. growth)	215
vaccines	95

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Gregory Mark Ackert, MD treated as a gastroenterologist in Lake Success, NY during 2013 were lab tests, hospital care, inpatient care and preventive care.

Volume of procedures performed by Dr. Gregory Mark Ackert, MD for Medicare patients.

blood draw	27
diagnostic procedures	221
doctor visit	1031
gastrointestinal procedures	221
hospital care	330
inpatient care	330
lab tests	498
minimally invasive procedures	221
preventive care	234
pulmonary testing	68
removal of lesion (e.g. growth)	221
vaccines	100

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Mark Ackert, MD.

**Gender**
Male	241
Female	294

**Ethnicity**
Non-Hispanic White	487
Black	0
Hispanic	17
Asian	0
Other	13
Native American	0

**Age**
From 65 to 74	218
From 75 to 84	178
85 and over	109
Less than 65	30

Conditions of Medicare patients treated by Dr. Gregory Mark Ackert, MD in 2013

Hypertension	74
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	46
Depression	16
Chronic Kidney Disease	17
Asthma	9
Osteoperosis	14
Atrial Fibrilation	16
Heart Failure	23
Chronic Obstructive Pulmonary Disease	14
Diabetes	33
Dementia	7
Cancer	16

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Gregory Mark Ackert, MD treated as a gastroenterologist in Lake Success, NY during 2014 were lab tests, inpatient care, hospital care and diagnostic procedures.

Volume of procedures performed by Dr. Gregory Mark Ackert, MD for Medicare patients.

blood draw	60
cardiac procedures	12
diagnostic procedures	206
doctor visit	1011
gastrointestinal procedures	206
hospital care	238
inpatient care	238
lab tests	267
minimally invasive procedures	206
preventive care	126
pulmonary testing	61
removal of lesion (e.g. growth)	206
ultrasound (sonogram)	28
vaccines	82
vascular procedures	16

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Mark Ackert, MD.

**Gender**
Male	248
Female	283

**Ethnicity**
Non-Hispanic White	469
Black	0
Hispanic	24
Asian	0
Other	18
Native American	0

**Age**
From 65 to 74	230
From 75 to 84	162
85 and over	105
Less than 65	34

Conditions of Medicare patients treated by Dr. Gregory Mark Ackert, MD in 2014

Hypertension	74
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	40
Depression	15
Chronic Kidney Disease	17
Asthma	9
Osteoperosis	16
Atrial Fibrilation	13
Heart Failure	21
Chronic Obstructive Pulmonary Disease	13
Diabetes	28
Dementia	6
Cancer	15

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Gregory Mark Ackert, MD treated as a gastroenterologist in Lake Success, NY during 2015 were lab tests, hospital care, inpatient care and removal of lesion (e.g. growth).

Volume of procedures performed by Dr. Gregory Mark Ackert, MD for Medicare patients.

blood draw	81
diagnostic procedures	174
doctor visit	947
gastrointestinal procedures	174
hospital care	212
inpatient care	212
lab tests	438
minimally invasive procedures	174
preventive care	115
removal of lesion (e.g. growth)	174
vaccines	89

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Mark Ackert, MD.

**Gender**
Male	506
Female	608

**Ethnicity**
Non-Hispanic White	984
Black	0
Hispanic	42
Asian	0
Other	46
Native American	0

**Age**
From 65 to 74	486
From 75 to 84	338
85 and over	224
Less than 65	66

Conditions of Medicare patients treated by Dr. Gregory Mark Ackert, MD in 2015

Hypertension	71
High Cholesterol	74
Stroke	6
Ischemic Heart Disease	38
Depression	18
Chronic Kidney Disease	21
Asthma	13
Osteoperosis	13
Atrial Fibrilation	15
Heart Failure	19
Chronic Obstructive Pulmonary Disease	13
Diabetes	30
Dementia	7
Cancer	14

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Gregory Mark Ackert, MD treated as a gastroenterologist in Lake Success, NY during 2016 were lab tests, hospital care, inpatient care and minimally invasive procedures.

Volume of procedures performed by Dr. Gregory Mark Ackert, MD for Medicare patients.

blood draw	112
diagnostic procedures	221
doctor visit	1003
gastrointestinal procedures	232
hospital care	258
inpatient care	258
lab tests	355
minimally invasive procedures	232
preventive care	105
removal of lesion (e.g. growth)	221
vaccines	78

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Mark Ackert, MD.

**Gender**
Male	269
Female	312

**Ethnicity**
Non-Hispanic White	514
Black	0
Hispanic	25
Asian	0
Other	24
Native American	0

**Age**
From 65 to 74	255
From 75 to 84	183
85 and over	109
Less than 65	34

Conditions of Medicare patients treated by Dr. Gregory Mark Ackert, MD in 2016

Hypertension	71
High Cholesterol	74
Stroke	3
Ischemic Heart Disease	34
Depression	15
Chronic Kidney Disease	22
Asthma	13
Osteoperosis	11
Atrial Fibrilation	13
Heart Failure	17
Chronic Obstructive Pulmonary Disease	10
Diabetes	26
Dementia	8
Cancer	13

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Gregory Mark Ackert, MD treated as a gastroenterologist in Lake Success, NY during 2017 were lab tests, minimally invasive procedures, gastrointestinal procedures and hospital care.

Volume of procedures performed by Dr. Gregory Mark Ackert, MD for Medicare patients.

blood draw	135
diagnostic procedures	187
doctor visit	927
gastrointestinal procedures	204
hospital care	194
inpatient care	194
lab tests	357
minimally invasive procedures	204
preventive care	116
removal of lesion (e.g. growth)	187
ultrasound (sonogram)	11
vaccines	70
vascular procedures	11

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Mark Ackert, MD.

**Gender**
Male	242
Female	294

**Ethnicity**
Non-Hispanic White	458
Black	22
Hispanic	0
Asian	0
Other	24
Native American	0

**Age**
From 65 to 74	227
From 75 to 84	171
85 and over	103
Less than 65	35

Conditions of Medicare patients treated by Dr. Gregory Mark Ackert, MD in 2017

Hypertension	74
High Cholesterol	67
Stroke	5
Ischemic Heart Disease	39
Depression	19
Chronic Kidney Disease	26
Asthma	10
Osteoperosis	13
Atrial Fibrilation	15
Heart Failure	15
Chronic Obstructive Pulmonary Disease	15
Diabetes	29
Dementia	9
Cancer	14

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Gregory Mark Ackert, MD treated as a gastroenterologist in Lake Success, NY during 2018 were lab tests, minimally invasive procedures, gastrointestinal procedures and removal of lesion (e.g. growth).

Volume of procedures performed by Dr. Gregory Mark Ackert, MD for Medicare patients.

blood draw	102
diagnostic procedures	196
doctor visit	856
gastrointestinal procedures	226
hospital care	108
inpatient care	108
lab tests	373
minimally invasive procedures	226
preventive care	101
removal of lesion (e.g. growth)	196
vaccines	56

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Mark Ackert, MD.

**Gender**
Male	269
Female	276

**Ethnicity**
Non-Hispanic White	469
Black	12
Hispanic	26
Asian	14
Other	24
Native American	0

**Age**
From 65 to 74	230
From 75 to 84	184
85 and over	96
Less than 65	35

Conditions of Medicare patients treated by Dr. Gregory Mark Ackert, MD in 2018

Hypertension	72
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	36
Depression	17
Chronic Kidney Disease	26
Asthma	9
Osteoperosis	12
Atrial Fibrilation	12
Heart Failure	16
Chronic Obstructive Pulmonary Disease	12
Diabetes	27
Dementia	9
Cancer	14

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Gregory Mark Ackert, MD treated as a gastroenterologist in Lake Success, NY during 2019 were lab tests, minimally invasive procedures, gastrointestinal procedures and removal of lesion (e.g. growth).

Volume of procedures performed by Dr. Gregory Mark Ackert, MD for Medicare patients.

blood draw	44
diagnostic procedures	195
doctor visit	911
gastrointestinal procedures	238
hospital care	66
inpatient care	66
lab tests	339
minimally invasive procedures	238
preventive care	138
removal of lesion (e.g. growth)	195
vaccines	12

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Mark Ackert, MD.

**Gender**
Male	281
Female	311

**Ethnicity**
Non-Hispanic White	497
Black	17
Hispanic	31
Asian	13
Other	34
Native American	0

**Age**
From 65 to 74	278
From 75 to 84	189
85 and over	93
Less than 65	32

Conditions of Medicare patients treated by Dr. Gregory Mark Ackert, MD in 2019

Hypertension	70
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	36
Depression	15
Chronic Kidney Disease	25
Asthma	11
Osteoperosis	11
Atrial Fibrilation	15
Heart Failure	14
Chronic Obstructive Pulmonary Disease	13
Diabetes	27
Dementia	8
Cancer	16

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Gregory Mark Ackert, MD treated as a gastroenterologist in Lake Success, NY during 2020 were lab tests, minimally invasive procedures, gastrointestinal procedures and removal of lesion (e.g. growth).

Volume of procedures performed by Dr. Gregory Mark Ackert, MD for Medicare patients.

diagnostic procedures	145
doctor visit	752
gastrointestinal procedures	172
lab tests	206
minimally invasive procedures	172
preventive care	123
removal of lesion (e.g. growth)	145

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Mark Ackert, MD.

**Gender**
Male	214
Female	286

**Ethnicity**
Non-Hispanic White	429
Black	12
Hispanic	20
Asian	14
Other	25
Native American	0

**Age**
From 65 to 74	237
From 75 to 84	163
85 and over	80
Less than 65	20

Conditions of Medicare patients treated by Dr. Gregory Mark Ackert, MD in 2020

Hypertension	70
High Cholesterol	75
Stroke	4
Ischemic Heart Disease	35
Depression	17
Chronic Kidney Disease	23
Asthma	8
Osteoperosis	15
Atrial Fibrilation	13
Heart Failure	13
Chronic Obstructive Pulmonary Disease	10
Diabetes	25
Dementia	11
Cancer	15

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Gregory Mark Ackert, MD treated as a gastroenterologist in Lake Success, NY during 2021 were lab tests, minimally invasive procedures, gastrointestinal procedures and preventive care.

Volume of procedures performed by Dr. Gregory Mark Ackert, MD for Medicare patients.

diagnostic procedures	169
doctor visit	850
gastrointestinal procedures	209
lab tests	245
minimally invasive procedures	209
preventive care	173
removal of lesion (e.g. growth)	169

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Mark Ackert, MD.

**Gender**
Male	277
Female	299

**Ethnicity**
Non-Hispanic White	485
Black	24
Hispanic	26
Asian	11
Other	30
Native American	0

**Age**
From 65 to 74	292
From 75 to 84	186
85 and over	80
Less than 65	18

Conditions of Medicare patients treated by Dr. Gregory Mark Ackert, MD in 2021

Hypertension	73
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	37
Depression	17
Chronic Kidney Disease	20
Asthma	9
Osteoperosis	15
Atrial Fibrilation	12
Heart Failure	13
Chronic Obstructive Pulmonary Disease	12
Diabetes	28
Dementia	9
Cancer	17

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Gregory Mark Ackert, MD treated as a gastroenterologist in Lake Success, NY during 2022 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Gregory Mark Ackert, MD for Medicare patients.

diagnostic procedures	166
doctor visit	885
gastrointestinal procedures	206
lab tests	132
minimally invasive procedures	206
preventive care	118
removal of lesion (e.g. growth)	166
vaccines	21

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Mark Ackert, MD.

**Gender**
Male	271
Female	321

**Ethnicity**
Non-Hispanic White	495
Black	0
Hispanic	29
Asian	0
Other	36
Native American	0

**Age**
From 65 to 74	293
From 75 to 84	208
85 and over	78
Less than 65	13

Conditions of Medicare patients treated by Dr. Gregory Mark Ackert, MD in 2022

Hypertension	74
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	28
Depression	14
Chronic Kidney Disease	10
Asthma	11
Osteoperosis	17
Atrial Fibrilation	16
Heart Failure	12
Chronic Obstructive Pulmonary Disease	11
Diabetes	27
Dementia	5
Cancer	20

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Gregory Mark Ackert, MD treated as a gastroenterologist in Lake Success, NY during 2023 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Gregory Mark Ackert, MD for Medicare patients.

diagnostic procedures	165
doctor visit	871
gastrointestinal procedures	198
lab tests	14
minimally invasive procedures	198
preventive care	47
removal of lesion (e.g. growth)	165

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Mark Ackert, MD.

**Gender**
Male	253
Female	317

**Ethnicity**
Non-Hispanic White	481
Black	0
Hispanic	28
Asian	0
Other	30
Native American	0

**Age**
From 65 to 74	269
From 75 to 84	214
85 and over	68
Less than 65	19

Conditions of Medicare patients treated by Dr. Gregory Mark Ackert, MD in 2023

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	28
Depression	18
Chronic Kidney Disease	10
Asthma	10
Osteoperosis	19
Atrial Fibrilation	14
Heart Failure	13
Chronic Obstructive Pulmonary Disease	11
Diabetes	29
Dementia	4
Cancer	21

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Gregory Mark Ackert, MD for Medicare patients.

The highest averages for the top procedures that Dr. Gregory Mark Ackert, MD treated as a gastroenterologist in Lake Success, NY were lab tests, inpatient care, hospital care and gastrointestinal procedures.

blood draw	75
cardiac procedures	12
diagnostic procedures	188
doctor visit	935
gastrointestinal procedures	208
hospital care	209
inpatient care	209
lab tests	311
minimally invasive procedures	208
preventive care	134
pulmonary testing	53
removal of lesion (e.g. growth)	188
ultrasound (sonogram)	19
vaccines	67
vascular procedures	13

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Gregory Mark Ackert, MD.

**Gender**
Female	300
Male	255

**Ethnicity**
Black / African American	7
Asian / Pacific Islander	4
Non-Hispanic White	480
Native American / Alaskan Native	0
Hispanic	22
Other	25

**Age**
85 and over	95
75 to 84	181
Less than 65	28
65 to 74	251

Average of Total of Conditions of Medicare patients treated by Dr. Gregory Mark Ackert, MD From 2012 - 2023

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

Hypertension	66
High Cholesterol	67
Stroke	5
Ischemic Heart Disease	33
Depression	15
Chronic Kidney Disease	18
Asthma	9
Osteoporosis	13
Heart Failure	14
Chronic Obstructive Pulmonary Disease	11
Diabetes	25
Atrial Fibrillation	12
Dementia	6
Cancer	14

Education & Training

Dr. Gregory Mark Ackert, MD graduated from New York University (NYU) School of Medicine in 1978. He completed residency at Long Island Jewish Medical Center. He is certified by the American Board of Internal Medicine - Internal Medicine and has a state license in New York.

Medical School: New York University (NYU) School of Medicine (1978)

Residency: Long Island Jewish Medical Center (1984)

Board Certification: American Board of Internal Medicine - Internal Medicine (1981)

Licensed In: New York

Affiliations & Hospitals

Dr. Gregory Mark Ackert, MD is associated with these hospitals and organizations:

NYU Langone Health

Gastroenterology, Ambulatory Care at Lake Success

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. Gregory Mark Ackert, MD appears to accept the following insurance providers: CIGNA Medicare, MagnaCare PPO, Oxford Liberty, CIGNA PPO, Oxford Freedom, HIP PPO, HIP POS, Oxford Medicare Advantage, HIP HMO, United Healthcare, HIP Child Health, HIP Access II, Empire BlueCross BlueShield PPO, HIP Access I, Empire BlueCross BlueShield, Cigna, HIP Medicare, United Healthcare PPO, United Healthcare POS, PHCS PPO, United Healthcare HMO, United Healthcare EPO, Local 1199 PPO and The Empire Plan.

Insurance Accepted by Provider includes:

According to our sources, Dr. Gregory Mark Ackert, MD accepts the following insurance providers:

CIGNA Medicare

MagnaCare PPO

Oxford Liberty

CIGNA PPO

Oxford Freedom

HIP PPO

HIP POS

Oxford Medicare Advantage

HIP HMO

United Healthcare

HIP Child Health

HIP Access II

Empire BlueCross BlueShield PPO

HIP Access I

Empire BlueCross BlueShield

Cigna

HIP Medicare

United Healthcare PPO

United Healthcare POS

PHCS PPO

United Healthcare HMO

United Healthcare EPO

Local 1199 PPO

The Empire Plan

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General Payments

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

**Payments by Company**
Boston Scientific Corporation	$445 WATCHMAN $248	WATCHMAN FLX $99	WATCHMAN Access System $50	Watchman Device $24	BODYGUARDIAN REMOTE MONITORING SYSTEM $24
AstraZeneca Pharmaceuticals LP	$444 BRILINTA $148	CRESTOR $132	Nexium $89	FARXIGA $46	$29
Janssen Pharmaceuticals, Inc	$436 XARELTO $336	meters $51	OneTouch $30	Blood Glucose Meters $18
Boehringer Ingelheim Pharmaceuticals, Inc.	$381 Pradaxa $246	JARDIANCE $124	Spiriva $12
AbbVie, Inc.	$263 Humira $108	Synthroid $83	Creon $52	Androgel $20
Other	$2,985 ZEPOSIA $205	Barostim Neo System $190	Repatha $170	HeartMate II $136	CRM $129	Other $2,154

**Types of Payments**
Food and Beverage	$4,643
Education	$163
Gift	$149

Biography

Dr. Gregory Ackert's medical specialty is general practice and adult gastroenterology. His clinical interests encompass primary care and influenza (flu). He is professionally affiliated with NYU Langone Health. Dr. Ackert is a graduate of New York University (NYU) School of Medicine. Dr. Ackert trained at Long Island Jewish Medical Center for his residency. He appears to be in-network for Blue California, Empire BlueCross BlueShield, and CIGNA Plans, in addition to other insurance carriers.