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Dr. Colm J. McMahon, MB BAO BCH

(Dr. Colm McMahon, MB BAO BCH)

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Specializes in: Diagnostic Radiology

University College Dublin (UCD) School of Medicine & Medical Science

Professional interests include: rectal cancer, musculoskeletal imaging, prostate cancer

133 Old Road To Nine Acre Corner
Concord, MA 01742

(978) 369-1400

Dr. Colm J. McMahon, MB BAO BCH is a diagnostic radiologist in Concord, MA specializing in diagnostic radiology. He graduated from University College Dublin (UCD) School of Medicine & Medical Science. Dr. Colm J. McMahon, MB BAO BCH is affiliated with Emerson Health, EMERSON PRACTICE ASSOCIATES, INC and NORTH BRIDGE IMAGING GROUP, LLC.

Office Locations

Emerson Health

133 Old Road To Nine Acre Corner
Concord, MA 01742

(978) 369-1400

open_in_new

330 Brookline Avenue Shapiro 4th Floor, Radiology
Boston, MA 02215

(617) 667-4923

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Noteworthy Medicare Patient Procedures Performed by Dr. Colm J. McMahon, MB BAO BCH in 2023

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

Top 10%

By Affordability:

duplex ultrasound

In 2023, Dr. Colm J. McMahon, MB BAO BCH had a list price for duplex ultrasound that was lower than the list prices billed to Medicare by 90% of providers in related specialties within Massachusetts. 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.

Top 25%

By Volume:

By Affordability:

lower extremity venous ultrasound

lower extremity venous duplex

venous duplex ultrasound

venous ultrasound

X-rays

In 2012, among providers in related specialties within Massachusetts, Dr. Colm J. McMahon, MB BAO BCH performed more ankle MRI, CT scan, hip MRI, knee MRI, leg CT scan, MRI (magnetic resonance imaging), shoulder MRI, and wrist MRI procedures for Medicare patients than 75% of them and he also had a list price for abdominal MRI, abdominal X-ray, joint X-ray, knee X-ray, lower extremity (leg) venous ultrasound, lower extremity venous duplex, pelvic CT scan, pelvic MRI, vascular studies, vascular ultrasound, venous duplex ultrasound, venous ultrasound, and X-rays 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

2014 Medicare Procedure Volume

The top procedures that Dr. Colm J. McMahon, MB BAO BCH treated as a diagnostic radiologist in Concord, MA during 2014 were X-rays, musculoskeletal imaging, spinal procedures and hip imaging.

Volume of procedures performed by Dr. Colm J. McMahon, MB BAO BCH for Medicare patients.

abdominal imaging	47
aspiration	38
CT scan	76
hip imaging	164
injections	38
MRI (magnetic resonance imaging)	50
musculoskeletal imaging	751
pelvic imaging	150
spinal procedures	196
thoracic (chest) imaging	17
ultrasound (sonogram)	13
vertebral fracture assessment (VFA)	19
X-rays	1016

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Colm J. McMahon, MB BAO BCH.

**Gender**
Male	486
Female	1016

**Ethnicity**
Non-Hispanic White	1212
Black	133
Hispanic	78
Asian	41
Other	0
Native American	0

**Age**
From 65 to 74	666
From 75 to 84	360
85 and over	193
Less than 65	283

Conditions of Medicare patients treated by Dr. Colm J. McMahon, MB BAO BCH in 2014

Hypertension	67
High Cholesterol	53
Stroke	5
Ischemic Heart Disease	31
Depression	35
Chronic Kidney Disease	28
Asthma	12
Osteoperosis	14
Atrial Fibrilation	14
Heart Failure	23
Chronic Obstructive Pulmonary Disease	14
Diabetes	29
Dementia	9
Cancer	13

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Colm J. McMahon, MB BAO BCH treated as a diagnostic radiologist in Concord, MA during 2015 were X-rays, musculoskeletal imaging, spinal procedures and hip imaging.

Volume of procedures performed by Dr. Colm J. McMahon, MB BAO BCH for Medicare patients.

abdominal imaging	109
aspiration	132
CT scan	200
diagnostic procedures	11
hip imaging	426
injections	132
minimally invasive procedures	11
minor procedures	11
MRI (magnetic resonance imaging)	112
musculoskeletal imaging	1689
pelvic imaging	381
spinal procedures	443
thoracic (chest) imaging	88
ultrasound (sonogram)	48
vascular procedures	22
X-rays	2407

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Colm J. McMahon, MB BAO BCH.

**Gender**
Male	2134
Female	4154

**Ethnicity**
Non-Hispanic White	4998
Black	622
Hispanic	318
Asian	154
Other	196
Native American	0

**Age**
From 65 to 74	2546
From 75 to 84	1652
85 and over	828
Less than 65	1262

Conditions of Medicare patients treated by Dr. Colm J. McMahon, MB BAO BCH in 2015

Hypertension	67
High Cholesterol	53
Stroke	6
Ischemic Heart Disease	30
Depression	36
Chronic Kidney Disease	28
Asthma	15
Osteoperosis	17
Atrial Fibrilation	12
Heart Failure	19
Chronic Obstructive Pulmonary Disease	12
Diabetes	30
Dementia	12
Cancer	13

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Colm J. McMahon, MB BAO BCH treated as a diagnostic radiologist in Concord, MA during 2016 were X-rays, musculoskeletal imaging, spinal procedures and MRI (magnetic resonance imaging).

Volume of procedures performed by Dr. Colm J. McMahon, MB BAO BCH for Medicare patients.

abdominal imaging	111
aspiration	121
CT scan	136
diagnostic procedures	13
hip imaging	94
injections	121
minimally invasive procedures	13
minor procedures	13
MRI (magnetic resonance imaging)	310
musculoskeletal imaging	1396
pelvic imaging	208
spinal procedures	486
thoracic (chest) imaging	109
vertebral fracture assessment (VFA)	25
X-rays	1826

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Colm J. McMahon, MB BAO BCH.

**Gender**
Male	1111
Female	2120

**Ethnicity**
Non-Hispanic White	2548
Black	298
Hispanic	179
Asian	0
Other	125
Native American	0

**Age**
From 65 to 74	1407
From 75 to 84	846
85 and over	366
Less than 65	612

Conditions of Medicare patients treated by Dr. Colm J. McMahon, MB BAO BCH in 2016

Hypertension	66
High Cholesterol	49
Stroke	5
Ischemic Heart Disease	30
Depression	34
Chronic Kidney Disease	32
Asthma	18
Osteoperosis	17
Atrial Fibrilation	12
Heart Failure	19
Chronic Obstructive Pulmonary Disease	12
Diabetes	29
Dementia	13
Cancer	14

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Colm J. McMahon, MB BAO BCH treated as a diagnostic radiologist in Concord, MA during 2017 were X-rays, musculoskeletal imaging, abdominal imaging and MRI (magnetic resonance imaging).

Volume of procedures performed by Dr. Colm J. McMahon, MB BAO BCH for Medicare patients.

abdominal imaging	495
aspiration	47
cardiac procedures	19
CT scan	292
hip imaging	46
injections	47
MRI (magnetic resonance imaging)	468
musculoskeletal imaging	961
pelvic imaging	400
spinal procedures	296
thoracic (chest) imaging	103
ultrasound (sonogram)	90
vascular procedures	42
vertebral fracture assessment (VFA)	23
X-rays	1305

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Colm J. McMahon, MB BAO BCH.

**Gender**
Male	1188
Female	1937

**Ethnicity**
Non-Hispanic White	2505
Black	268
Hispanic	146
Asian	0
Other	126
Native American	0

**Age**
From 65 to 74	1335
From 75 to 84	871
85 and over	370
Less than 65	549

Conditions of Medicare patients treated by Dr. Colm J. McMahon, MB BAO BCH in 2017

Hypertension	68
High Cholesterol	46
Stroke	5
Ischemic Heart Disease	31
Depression	35
Chronic Kidney Disease	36
Asthma	12
Osteoperosis	16
Atrial Fibrilation	13
Heart Failure	21
Chronic Obstructive Pulmonary Disease	14
Diabetes	29
Dementia	15
Cancer	15

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Colm J. McMahon, MB BAO BCH treated as a diagnostic radiologist in Concord, MA during 2018 were CT scan, abdominal imaging, musculoskeletal imaging and pelvic imaging.

Volume of procedures performed by Dr. Colm J. McMahon, MB BAO BCH for Medicare patients.

abdominal imaging	581
brain imaging (neuroimaging)	161
CT scan	790
hip imaging	45
MRI (magnetic resonance imaging)	373
musculoskeletal imaging	406
neck imaging	29
pelvic imaging	405
preventive care	24
spinal procedures	133
thoracic (chest) imaging	253
ultrasound (sonogram)	297
vascular procedures	90
women's imaging	14
X-rays	353

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Colm J. McMahon, MB BAO BCH.

**Gender**
Male	1110
Female	1496

**Ethnicity**
Non-Hispanic White	2102
Black	94
Hispanic	201
Asian	143
Other	0
Native American	0

**Age**
From 65 to 74	1006
From 75 to 84	656
85 and over	332
Less than 65	612

Conditions of Medicare patients treated by Dr. Colm J. McMahon, MB BAO BCH in 2018

Hypertension	74
High Cholesterol	62
Stroke	7
Ischemic Heart Disease	38
Depression	38
Chronic Kidney Disease	43
Asthma	12
Osteoperosis	12
Atrial Fibrilation	15
Heart Failure	27
Chronic Obstructive Pulmonary Disease	24
Diabetes	35
Dementia	17
Cancer	17

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Colm J. McMahon, MB BAO BCH treated as a diagnostic radiologist in Concord, MA during 2019 were CT scan, MRI (magnetic resonance imaging), abdominal imaging and musculoskeletal imaging.

Volume of procedures performed by Dr. Colm J. McMahon, MB BAO BCH for Medicare patients.

abdominal imaging	420
brain imaging (neuroimaging)	200
CT scan	732
hip imaging	90
MRI (magnetic resonance imaging)	442
musculoskeletal imaging	365
neck imaging	22
pelvic imaging	285
preventive care	32
spinal procedures	206
thoracic (chest) imaging	263
ultrasound (sonogram)	274
vascular procedures	90
women's imaging	12
X-rays	250

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Colm J. McMahon, MB BAO BCH.

**Gender**
Male	1093
Female	1514

**Ethnicity**
Non-Hispanic White	2135
Black	37
Hispanic	243
Asian	153
Other	0
Native American	0

**Age**
From 65 to 74	965
From 75 to 84	701
85 and over	344
Less than 65	597

Conditions of Medicare patients treated by Dr. Colm J. McMahon, MB BAO BCH in 2019

Hypertension	75
High Cholesterol	66
Stroke	8
Ischemic Heart Disease	41
Depression	39
Chronic Kidney Disease	45
Asthma	12
Osteoperosis	10
Atrial Fibrilation	18
Heart Failure	29
Chronic Obstructive Pulmonary Disease	26
Diabetes	36
Dementia	17
Cancer	16

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Colm J. McMahon, MB BAO BCH treated as a diagnostic radiologist in Concord, MA during 2020 were CT scan, abdominal imaging, MRI (magnetic resonance imaging) and ultrasound (sonogram).

Volume of procedures performed by Dr. Colm J. McMahon, MB BAO BCH for Medicare patients.

abdominal imaging	382
brain imaging (neuroimaging)	169
CT scan	569
hip imaging	66
MRI (magnetic resonance imaging)	362
musculoskeletal imaging	234
neck imaging	44
pelvic imaging	260
preventive care	25
spinal procedures	180
thoracic (chest) imaging	179
ultrasound (sonogram)	313
vascular procedures	72
women's imaging	19
X-rays	128

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Colm J. McMahon, MB BAO BCH.

**Gender**
Male	791
Female	1105

**Ethnicity**
Non-Hispanic White	1549
Black	26
Hispanic	189
Asian	100
Other	32
Native American	0

**Age**
From 65 to 74	734
From 75 to 84	509
85 and over	235
Less than 65	418

Conditions of Medicare patients treated by Dr. Colm J. McMahon, MB BAO BCH in 2020

Hypertension	75
High Cholesterol	65
Stroke	8
Ischemic Heart Disease	43
Depression	38
Chronic Kidney Disease	49
Asthma	11
Osteoperosis	10
Atrial Fibrilation	17
Heart Failure	30
Chronic Obstructive Pulmonary Disease	24
Diabetes	36
Dementia	17
Cancer	15

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Colm J. McMahon, MB BAO BCH treated as a diagnostic radiologist in Concord, MA during 2021 were CT scan, MRI (magnetic resonance imaging), abdominal imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. Colm J. McMahon, MB BAO BCH for Medicare patients.

abdominal imaging	338
brain imaging (neuroimaging)	158
CT scan	439
hip imaging	75
MRI (magnetic resonance imaging)	368
musculoskeletal imaging	192
neck imaging	32
pelvic imaging	197
spinal procedures	153
thoracic (chest) imaging	112
ultrasound (sonogram)	213
vascular procedures	55
X-rays	97

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Colm J. McMahon, MB BAO BCH.

**Gender**
Male	753
Female	979

**Ethnicity**
Non-Hispanic White	1417
Black	0
Hispanic	161
Asian	101
Other	29
Native American	0

**Age**
From 65 to 74	685
From 75 to 84	478
85 and over	223
Less than 65	346

Conditions of Medicare patients treated by Dr. Colm J. McMahon, MB BAO BCH in 2021

Hypertension	75
High Cholesterol	68
Stroke	9
Ischemic Heart Disease	43
Depression	35
Chronic Kidney Disease	47
Asthma	10
Osteoperosis	11
Atrial Fibrilation	19
Heart Failure	30
Chronic Obstructive Pulmonary Disease	25
Diabetes	35
Dementia	16
Cancer	16

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Colm J. McMahon, MB BAO BCH treated as a diagnostic radiologist in Concord, MA during 2022 were CT scan, MRI (magnetic resonance imaging), abdominal imaging and pelvic imaging.

Volume of procedures performed by Dr. Colm J. McMahon, MB BAO BCH for Medicare patients.

abdominal imaging	445
brain imaging (neuroimaging)	282
CT scan	1034
gastrointestinal procedures	11
hip imaging	61
MRI (magnetic resonance imaging)	445
musculoskeletal imaging	179
pelvic imaging	408
spinal procedures	274
thoracic (chest) imaging	322
ultrasound (sonogram)	29
vascular procedures	18
X-rays	73

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Colm J. McMahon, MB BAO BCH.

**Gender**
Male	736
Female	1092

**Ethnicity**
Non-Hispanic White	1692
Black	20
Hispanic	20
Asian	23
Other	73
Native American	0

**Age**
From 65 to 74	677
From 75 to 84	692
85 and over	328
Less than 65	131

Conditions of Medicare patients treated by Dr. Colm J. McMahon, MB BAO BCH in 2022

Hypertension	72
High Cholesterol	69
Stroke	13
Ischemic Heart Disease	28
Depression	30
Chronic Kidney Disease	24
Asthma	16
Osteoperosis	18
Atrial Fibrilation	24
Heart Failure	19
Chronic Obstructive Pulmonary Disease	18
Diabetes	22
Dementia	13
Cancer	22

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2014 - 2022

Volume of procedures performed by Dr. Colm J. McMahon, MB BAO BCH for Medicare patients.

The highest averages for the top procedures that Dr. Colm J. McMahon, MB BAO BCH treated as a diagnostic radiologist in Concord, MA were X-rays, musculoskeletal imaging, CT scan and MRI (magnetic resonance imaging).

abdominal imaging	325
aspiration	84
brain imaging (neuroimaging)	194
cardiac procedures	19
CT scan	474
diagnostic procedures	12
gastrointestinal procedures	11
hip imaging	118
injections	84
minimally invasive procedures	12
minor procedures	12
MRI (magnetic resonance imaging)	325
musculoskeletal imaging	685
neck imaging	31
pelvic imaging	299
preventive care	27
spinal procedures	263
thoracic (chest) imaging	160
ultrasound (sonogram)	159
vascular procedures	55
vertebral fracture assessment (VFA)	22
women's imaging	15
X-rays	828

Average Medicare Patient Data From 2014 - 2022

Information about Medicare patients treated by Dr. Colm J. McMahon, MB BAO BCH.

**Gender**
Male	1044
Female	1712

**Ethnicity**
Black / African American	166
Asian / Pacific Islander	79
Non-Hispanic White	2239
Native American / Alaskan Native	0
Hispanic	170
Other	64

**Age**
75 to 84	751
85 and over	357
Less than 65	534
65 to 74	1113

Average of Total of Conditions of Medicare patients treated by Dr. Colm J. McMahon, MB BAO BCH From 2014 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Colm J. McMahon, MB BAO BCH treated were hypertension, high cholesterol, chronic kidney disease and depression.

Hypertension	71
High Cholesterol	59
Stroke	7
Ischemic Heart Disease	35
Depression	35
Chronic Kidney Disease	36
Asthma	13
Osteoporosis	13
Heart Failure	24
Chronic Obstructive Pulmonary Disease	18
Diabetes	31
Atrial Fibrillation	16
Dementia	14
Cancer	15

Education & Training

Dr. Colm J. McMahon, MB BAO BCH graduated from University College Dublin (UCD) School of Medicine & Medical Science. He completed residency at St. Vincent's University Hospital, Ireland. He is certified by the Radiology (Diagnostic) and has a state license in Massachusetts.

Medical School: University College Dublin (UCD) School of Medicine & Medical Science

Residency: St. Vincent's University Hospital, Ireland

Board Certification: Radiology (Diagnostic)

Licensed In: Massachusetts

Affiliations & Hospitals

Dr. Colm J. McMahon, MB BAO BCH is associated with these hospitals and organizations:

Emerson Health

EMERSON PRACTICE ASSOCIATES, INC

NORTH BRIDGE IMAGING GROUP, LLC

Ratings & Reviews

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General Payments

These charts describe general payments received by Dr. Colm J. McMahon, MB BAO BCH. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Siemens Medical Solutions USA, Inc.	$5,780 $5,780

**Types of Payments**
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$5,780

Biography

Dr. Colm McMahon's specialty is diagnostic radiology. In his practice, Dr. McMahon focuses on rectal cancer, musculoskeletal imaging, and prostate cancer. He studied medicine at the University College Dublin (UCD) School of Medicine & Medical Science. Dr. McMahon is affiliated with Emerson Health.

Select Year:

Dr. Colm J. McMahon, MB BAO BCH

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Colm J. McMahon, MB BAO BCH in 2023

By Affordability:

By Volume:

By Affordability:

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Colm J. McMahon, MB BAO BCH in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Colm J. McMahon, MB BAO BCH in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Colm J. McMahon, MB BAO BCH in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Colm J. McMahon, MB BAO BCH in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Colm J. McMahon, MB BAO BCH in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Colm J. McMahon, MB BAO BCH in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Colm J. McMahon, MB BAO BCH in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Colm J. McMahon, MB BAO BCH in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Colm J. McMahon, MB BAO BCH in 2022

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2014 - 2022

Average Medicare Patient Data From 2014 - 2022

Average of Total of Conditions of Medicare patients treated by Dr. Colm J. McMahon, MB BAO BCH From 2014 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

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