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Dr. Gregory M. McCarthy, MD

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Specializes in: Adult Gastroenterology

2030 Mountain View Avenue
Longmont, CO 80501

(720) 652-8650

Dr. Gregory M. McCarthy, MD is a gastroenterologist in Manchester, NH specializing in adult gastroenterology. Dr. Gregory M. McCarthy, MD is affiliated with ST. JOSEPH HOSPITAL OF NASHUA NH and ELLIOT PROFESSIONAL SERVICES.

Office Locations

100 Hitchcock Way
Manchester, NH 03104

open_in_new

2030 Mountain View Avenue
Longmont, CO 80501

(720) 652-8650

(720) 652-8655

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Noteworthy Medicare Patient Procedures Performed by Dr. Gregory M. McCarthy, MD in 2023

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

Top 25%

By Volume:

preventive care

screening colonoscopy

In 2012, Dr. Gregory M. McCarthy, MD performed more preventive care, and screening colonoscopy procedures for Medicare patients than 75% of providers in related specialties within New Hampshire.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Gregory M. McCarthy, MD treated as a gastroenterologist in Manchester, NH during 2012 were hospital care and inpatient care.

Volume of procedures performed by Dr. Gregory M. McCarthy, MD for Medicare patients.

doctor visit	520
hospital care	118
inpatient care	118

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Gregory M. McCarthy, MD treated as a gastroenterologist in Manchester, NH during 2013 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Gregory M. McCarthy, MD for Medicare patients.

balloon dilation	11
diagnostic procedures	43
doctor visit	405
esophageal dilation	11
gastrointestinal procedures	97
hospital care	162
inpatient care	162
minimally invasive procedures	97
preventive care	11
removal of lesion (e.g. growth)	43

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory M. McCarthy, MD.

**Gender**
Male	161
Female	171

**Ethnicity**
Non-Hispanic White	317
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	121
From 75 to 84	91
85 and over	48
Less than 65	72

Conditions of Medicare patients treated by Dr. Gregory M. McCarthy, MD in 2013

Hypertension	59
High Cholesterol	50
Stroke	4
Ischemic Heart Disease	27
Depression	25
Chronic Kidney Disease	20
Asthma	10
Osteoperosis	8
Atrial Fibrilation	12
Heart Failure	13
Chronic Obstructive Pulmonary Disease	18
Diabetes	23
Dementia	9
Cancer	12

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Gregory M. McCarthy, MD treated as a gastroenterologist in Manchester, NH during 2014 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Gregory M. McCarthy, MD for Medicare patients.

diagnostic procedures	15
doctor visit	340
gastrointestinal procedures	46
hospital care	101
inpatient care	101
minimally invasive procedures	46
preventive care	19
removal of lesion (e.g. growth)	15

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory M. McCarthy, MD.

**Gender**
Male	150
Female	155

**Ethnicity**
Non-Hispanic White	291
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	118
From 75 to 84	92
85 and over	40
Less than 65	55

Conditions of Medicare patients treated by Dr. Gregory M. McCarthy, MD in 2014

Hypertension	61
High Cholesterol	55
Stroke	4
Ischemic Heart Disease	26
Depression	25
Chronic Kidney Disease	22
Asthma	7
Osteoperosis	6
Atrial Fibrilation	13
Heart Failure	18
Chronic Obstructive Pulmonary Disease	14
Diabetes	26
Dementia	8
Cancer	12

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Gregory M. McCarthy, MD treated as a gastroenterologist in Manchester, NH during 2015 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Gregory M. McCarthy, MD for Medicare patients.

diagnostic procedures	21
doctor visit	239
gastrointestinal procedures	42
hospital care	70
inpatient care	70
minimally invasive procedures	42
preventive care	21
removal of lesion (e.g. growth)	21

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory M. McCarthy, MD.

**Gender**
Male	302
Female	230

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

**Age**
From 65 to 74	202
From 75 to 84	162
85 and over	74
Less than 65	94

Conditions of Medicare patients treated by Dr. Gregory M. McCarthy, MD in 2015

Hypertension	64
High Cholesterol	65
Stroke	5
Ischemic Heart Disease	32
Depression	26
Chronic Kidney Disease	24
Asthma	14
Osteoperosis	7
Atrial Fibrilation	18
Heart Failure	17
Chronic Obstructive Pulmonary Disease	15
Diabetes	29
Dementia	10
Cancer	10

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Gregory M. McCarthy, MD treated as a gastroenterologist in Manchester, NH during 2016 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Gregory M. McCarthy, MD for Medicare patients.

diagnostic procedures	31
doctor visit	241
gastrointestinal procedures	59
hospital care	71
inpatient care	71
minimally invasive procedures	59
preventive care	16
removal of lesion (e.g. growth)	31

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory M. McCarthy, MD.

**Gender**
Male	138
Female	147

**Age**
From 65 to 74	107
From 75 to 84	103
85 and over	31
Less than 65	44

Conditions of Medicare patients treated by Dr. Gregory M. McCarthy, MD in 2016

Hypertension	61
High Cholesterol	54
Stroke	6
Ischemic Heart Disease	32
Depression	26
Chronic Kidney Disease	26
Asthma	19
Osteoperosis	12
Atrial Fibrilation	14
Heart Failure	18
Chronic Obstructive Pulmonary Disease	16
Diabetes	22
Dementia	12
Cancer	13

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Gregory M. McCarthy, MD treated as a gastroenterologist in Manchester, NH during 2017 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Gregory M. McCarthy, MD for Medicare patients.

doctor visit	226
gastrointestinal procedures	16
hospital care	70
inpatient care	70
minimally invasive procedures	16

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory M. McCarthy, MD.

**Gender**
Male	118
Female	104

**Ethnicity**
Non-Hispanic White	209
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	80
From 75 to 84	85
85 and over	30
Less than 65	27

Conditions of Medicare patients treated by Dr. Gregory M. McCarthy, MD in 2017

Hypertension	59
High Cholesterol	36
Stroke	0
Ischemic Heart Disease	27
Depression	22
Chronic Kidney Disease	29
Asthma	7
Osteoperosis	7
Atrial Fibrilation	15
Heart Failure	17
Chronic Obstructive Pulmonary Disease	13
Diabetes	26
Dementia	9
Cancer	12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Gregory M. McCarthy, MD treated as a gastroenterologist in Manchester, NH during 2018 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Gregory M. McCarthy, MD for Medicare patients.

diagnostic procedures	33
doctor visit	220
gastrointestinal procedures	82
hospital care	43
inpatient care	43
minimally invasive procedures	82
preventive care	33
removal of lesion (e.g. growth)	33

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory M. McCarthy, MD.

**Gender**
Male	137
Female	106

**Age**
From 65 to 74	105
From 75 to 84	89
85 and over	18
Less than 65	31

Conditions of Medicare patients treated by Dr. Gregory M. McCarthy, MD in 2018

Hypertension	53
High Cholesterol	43
Stroke	0
Ischemic Heart Disease	31
Depression	20
Chronic Kidney Disease	28
Asthma	7
Osteoperosis	7
Atrial Fibrilation	16
Heart Failure	17
Chronic Obstructive Pulmonary Disease	17
Diabetes	25
Dementia	10
Cancer	7

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Gregory M. McCarthy, MD treated as a gastroenterologist in Manchester, NH during 2019 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Gregory M. McCarthy, MD for Medicare patients.

diagnostic procedures	31
doctor visit	225
gastrointestinal procedures	71
hospital care	48
inpatient care	48
minimally invasive procedures	71
preventive care	26
removal of lesion (e.g. growth)	31

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory M. McCarthy, MD.

**Gender**
Male	129
Female	118

**Ethnicity**
Non-Hispanic White	235
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	95
From 75 to 84	84
85 and over	33
Less than 65	35

Conditions of Medicare patients treated by Dr. Gregory M. McCarthy, MD in 2019

Hypertension	56
High Cholesterol	43
Stroke	0
Ischemic Heart Disease	29
Depression	20
Chronic Kidney Disease	26
Asthma	7
Osteoperosis	6
Atrial Fibrilation	12
Heart Failure	18
Chronic Obstructive Pulmonary Disease	15
Diabetes	25
Dementia	9
Cancer	9

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Gregory M. McCarthy, MD treated as a gastroenterologist in Manchester, NH during 2020 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Gregory M. McCarthy, MD for Medicare patients.

diagnostic procedures	110
doctor visit	213
gastrointestinal procedures	152
hospital care	41
inpatient care	41
minimally invasive procedures	152
preventive care	19
removal of lesion (e.g. growth)	110

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory M. McCarthy, MD.

**Gender**
Male	124
Female	120

**Ethnicity**
Non-Hispanic White	232
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	114
From 75 to 84	72
85 and over	28
Less than 65	30

Conditions of Medicare patients treated by Dr. Gregory M. McCarthy, MD in 2020

Hypertension	59
High Cholesterol	47
Stroke	5
Ischemic Heart Disease	36
Depression	25
Chronic Kidney Disease	30
Asthma	6
Osteoperosis	0
Atrial Fibrilation	13
Heart Failure	17
Chronic Obstructive Pulmonary Disease	14
Diabetes	27
Dementia	5
Cancer	10

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Gregory M. McCarthy, MD treated as a gastroenterologist in Manchester, NH during 2021 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Gregory M. McCarthy, MD for Medicare patients.

balloon dilation	17
diagnostic procedures	126
doctor visit	86
esophageal dilation	17
gastrointestinal procedures	227
hospital care	73
inpatient care	73
minimally invasive procedures	227
preventive care	58
removal of lesion (e.g. growth)	126

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory M. McCarthy, MD.

**Gender**
Male	146
Female	145

**Ethnicity**
Non-Hispanic White	270
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	139
From 75 to 84	95
85 and over	26
Less than 65	31

Conditions of Medicare patients treated by Dr. Gregory M. McCarthy, MD in 2021

Hypertension	63
High Cholesterol	63
Stroke	6
Ischemic Heart Disease	34
Depression	24
Chronic Kidney Disease	34
Asthma	7
Osteoperosis	7
Atrial Fibrilation	14
Heart Failure	17
Chronic Obstructive Pulmonary Disease	16
Diabetes	30
Dementia	11
Cancer	12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Gregory M. McCarthy, MD treated as a gastroenterologist in Manchester, NH during 2022 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Gregory M. McCarthy, MD for Medicare patients.

diagnostic procedures	108
doctor visit	40
gastrointestinal procedures	187
minimally invasive procedures	187
preventive care	65
removal of lesion (e.g. growth)	108

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory M. McCarthy, MD.

**Gender**
Male	100
Female	111

**Ethnicity**
Non-Hispanic White	200
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	102
From 75 to 84	68
85 and over	13
Less than 65	28

Conditions of Medicare patients treated by Dr. Gregory M. McCarthy, MD in 2022

Hypertension	59
High Cholesterol	69
Stroke	7
Ischemic Heart Disease	18
Depression	13
Chronic Kidney Disease	16
Asthma	14
Osteoperosis	9
Atrial Fibrilation	15
Heart Failure	10
Chronic Obstructive Pulmonary Disease	14
Diabetes	26
Dementia	0
Cancer	12

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Gregory M. McCarthy, MD for Medicare patients.

The highest averages for the top procedures that Dr. Gregory M. McCarthy, MD treated as a gastroenterologist in Manchester, NH were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

balloon dilation	14
diagnostic procedures	57
doctor visit	250
esophageal dilation	14
gastrointestinal procedures	97
hospital care	79
inpatient care	79
minimally invasive procedures	97
preventive care	29
removal of lesion (e.g. growth)	57

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Gregory M. McCarthy, MD.

**Gender**
Male	136
Female	127

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	205
Hispanic	0
Native American / Alaskan Native	0
Other	0

**Age**
75 to 84	85
85 and over	31
Less than 65	40
65 to 74	107

Average of Total of Conditions of Medicare patients treated by Dr. Gregory M. McCarthy, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Gregory M. McCarthy, MD treated were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	54
High Cholesterol	47
Stroke	3
Ischemic Heart Disease	26
Depression	20
Chronic Kidney Disease	23
Asthma	8
Osteoporosis	6
Heart Failure	14
Chronic Obstructive Pulmonary Disease	13
Diabetes	23
Atrial Fibrillation	12
Cancer	9
Dementia	7

Education & Training

He has a state license in Colorado.

Licensed In: Colorado

Affiliations & Hospitals

Dr. Gregory M. McCarthy, MD is associated with these hospitals and organizations:

ST. JOSEPH HOSPITAL OF NASHUA NH

ELLIOT PROFESSIONAL SERVICES

Ratings & Reviews

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General Payments

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

**Payments by Company**
Stryker Corporation	$46 ORTHOLOC 2 LAPIFUSE $46
Covidien LP	$30 Barrx $30
Allergan Inc.	$16 VIBERZI $16

**Types of Payments**
Food and Beverage	$92

Biography

Dr. Gregory McCarthy obtained a license to practice in New Hampshire.

Select Year:

Dr. Gregory M. McCarthy, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Gregory M. McCarthy, MD 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. Gregory M. McCarthy, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory M. McCarthy, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory M. McCarthy, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory M. McCarthy, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory M. McCarthy, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory M. McCarthy, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory M. McCarthy, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory M. McCarthy, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory M. McCarthy, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory M. McCarthy, MD 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. Gregory M. McCarthy, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

Other Providers in Manchester, NH