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Dr. Colin Macleod Barker Sr., MD

Accepting New Patients

(219 Ratings)

Specializes in: Vascular Medicine (Blood Vessel Disease), Interventional Cardiology and Adult Cardiology

Boston University School of Medicine (2001)

Professional interests include: peripheral vascular disease, transcatheter mitral valve repair (MitraClip), mitral stenosis, and more.

1215 21st Avenue South 5th Floor
Nashville, TN 37232

(615) 322-2318

Dr. Colin Macleod Barker Sr., MD is a vascular medicine specialist in Nashville, TN specializing in vascular medicine (blood vessel disease), interventional cardiology and adult cardiology. He graduated from Boston University School of Medicine in 2001 and has 25 years of experience. Dr. Colin Macleod Barker Sr., MD is affiliated with Vanderbilt Health.

Office Locations

1215 21st Avenue South 5th Floor
Nashville, TN 37232

(615) 322-2318

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Some issues Dr. Colin Macleod Barker Sr., MD can help you with:

Cardiac Catheterization

Cardiac catheterization is a procedure done to check on the health of the heart. A tiny, flexible tube called a catheter is inserted into a blood vessel through a very small opening, usually in the groin, and threaded through the blood vessel up to the heart. Once the catheter is in place, it can diagnose problems in the heart and perform certain corrective procedures.

A coronary catheter can be used to:

Take blood samples
Inject dye for an angiogram
Check for valve defects
Measure oxygen and pressure levels within the heart chambers
Take a biopsy
Perform a percutaneous coronary intervention, or procedure to clear blocked arteries
Widen narrowed valve openings

Because all of this can be accomplished without the need for open surgery, cardiac catheterization has become a popular option.

Coronary Artery Disease

Coronary artery disease (CAD) is the most common type of heart disease. It happens when the blood vessels carrying blood to the heart, called coronary arteries, narrow and harden. This occurs when cholesterol, a type of fat found in the blood, builds up to form plaque, which sticks to the inner walls of the arteries. As plaque accumulates, less blood can flow through the arteries, which may lead to the following:

Angina, which is chest pain that occurs when the heart does not receive enough blood flow.
Heart attack, which happens if the arteries leading to the heart are completely blocked.
Arrhythmia, or irregular heartbeat, which can develop if the heart does not have enough blood supply.
Heart failure, which may occur if a heart attack damages the heart and it becomes too weak to pump enough blood to the rest of the body.

Certain factors may increase risk for the disease, like smoking, lack of exercise, being overweight, high cholesterol, high blood pressure, and diabetes. CAD tends to develop over decades, so it can go undetected until it has become quite severe. A diagnosis may be established using such tests as:

Electrocardiogram (ECG), which records the heart's electrical activity over a period of time. ECGs can detect whether there is enough blood flow to the heart or if a heart attack has occurred.
Echocardiogram (echo), which creates images of the heart using sound waves. Echos can show whether the heart is able to pump blood normally.
Stress tests, where an ECG or echo is combined with exercise, like riding a stationary bike or walking on a treadmill. This test is done to find out if the heart can function properly while performing a strenuous activity.

Treatments for the disease include medications such as vasodilators, like nitroglycerin, which dilates (widens) the coronary arteries. CAD may also be treated by a procedure called angioplasty with stent placement, where a balloon is inflated inside a diseased artery to flatten the plaque deposits against the artery walls, creating more room for blood to flow.

In some severe cases of the disease, multiple arteries may be blocked, and an open heart surgery called coronary artery bypass surgery may be necessary. This operation transplants a vessel from another part of the body to form a graft that goes past the narrowed arteries, thus enabling blood to flow around those arteries.

In The News

“"Just as important is how patients feel," said Colin M. Barker, MD, director of the cardiac cath lab at Vanderbilt University Medical Center in Nashville, who called the symptom improvements "very...”—"No-Implant Shunt Eases HF Symptoms in Early Data", MedPage Today, May 2022

“Her persistence led her to seek out the advice of interventional cardiologist Dr. Colin Barker at the Houston Methodist Hospital.”—"Tackling Heart Health Head On: One Woman s Journey to Coronary Artery Disease Diagnosis and Treatment", Chicago Tribune, February 2017

“The rest is inconclusive," said Dr. Colin Barker, a cardiologist with Houston Methodist DeBakey Heart and Vascular Center, who was not connected to the study.”—"Testosterone therapy improves libido but not vitality in older men", Fox News, February 2016

Noteworthy Medicare Patient Procedures Performed by Dr. Colin Macleod Barker Sr., MD in 2023

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

Top 5%

By Volume:

cardiac catheterization

cardiac procedures

coronary angiogram

coronary angioplasty with stent

diagnostic procedures

diagnostic right heart catheterization

endomyocardial biopsy

fully percutaneous transfemoral TAVR

inpatient hospital care

minimally invasive aortic valve replacement

minimally invasive procedures

percutaneous coronary intervention

transcatheter mitral valve repair

vascular procedures

In 2023, Dr. Colin Macleod Barker Sr., MD performed more cardiac catheterization, cardiac procedures, coronary angiogram, coronary angioplasty with stent, diagnostic procedures, diagnostic right heart catheterization, endomyocardial biopsy, fully percutaneous (incisionless) transfemoral TAVR, inpatient hospital care (for patient admitted to hospital), minimally invasive aortic valve replacement, minimally invasive procedures, percutaneous coronary intervention (PCI), transcatheter mitral valve repair (MitraClip), and vascular procedures procedures for Medicare patients than 95% of providers in related specialties within Tennessee.

Top 10%

By Affordability:

heart biopsy

In 2023, Dr. Colin Macleod Barker Sr., MD had a list price for heart biopsy that was lower than the list prices billed to Medicare by 90% of providers in related specialties within Tennessee. 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. Colin Macleod Barker Sr., MD treated as a vascular medicine specialist in Nashville, TN during 2012 were hospital care, inpatient care, cardiac procedures and vascular procedures.

Volume of procedures performed by Dr. Colin Macleod Barker Sr., MD for Medicare patients.

cardiac procedures	172
catheterization	66
diagnostic procedures	31
doctor visit	400
hospital care	394
inpatient care	394
minimally invasive procedures	88
stent placement (stenting)	35
vascular procedures	115

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Colin Macleod Barker Sr., MD treated as a vascular medicine specialist in Nashville, TN during 2013 were hospital care, inpatient care, cardiac procedures and minimally invasive procedures.

Volume of procedures performed by Dr. Colin Macleod Barker Sr., MD for Medicare patients.

angioplasty	60
cardiac procedures	245
catheterization	138
diagnostic procedures	48
doctor visit	414
hospital care	412
inpatient care	412
lab tests	25
minimally invasive procedures	156
stent placement (stenting)	60
vascular procedures	121

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Colin Macleod Barker Sr., MD.

**Gender**
Male	1174
Female	1105

**Ethnicity**
Non-Hispanic White	1473
Black	493
Hispanic	258
Asian	36
Other	0
Native American	0

**Age**
From 65 to 74	780
From 75 to 84	646
85 and over	399
Less than 65	454

Conditions of Medicare patients treated by Dr. Colin Macleod Barker Sr., MD in 2013

Hypertension	75
High Cholesterol	72
Stroke	16
Ischemic Heart Disease	73
Depression	30
Chronic Kidney Disease	56
Asthma	13
Osteoperosis	12
Atrial Fibrilation	30
Heart Failure	57
Chronic Obstructive Pulmonary Disease	30
Diabetes	50
Dementia	19
Cancer	16

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Colin Macleod Barker Sr., MD treated as a vascular medicine specialist in Nashville, TN during 2014 were hospital care, inpatient care, cardiac procedures and minimally invasive procedures.

Volume of procedures performed by Dr. Colin Macleod Barker Sr., MD for Medicare patients.

angioplasty	86
cardiac procedures	365
catheterization	162
diagnostic procedures	33
doctor visit	486
hospital care	564
inpatient care	564
lab tests	35
minimally invasive procedures	197
stent placement (stenting)	86
vascular procedures	187

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Colin Macleod Barker Sr., MD.

**Gender**
Male	1160
Female	1169

**Ethnicity**
Non-Hispanic White	1550
Black	445
Hispanic	268
Asian	37
Other	0
Native American	0

**Age**
From 65 to 74	803
From 75 to 84	635
85 and over	428
Less than 65	463

Conditions of Medicare patients treated by Dr. Colin Macleod Barker Sr., MD in 2014

Hypertension	75
High Cholesterol	73
Stroke	16
Ischemic Heart Disease	75
Depression	31
Chronic Kidney Disease	58
Asthma	13
Osteoperosis	11
Atrial Fibrilation	32
Heart Failure	60
Chronic Obstructive Pulmonary Disease	30
Diabetes	51
Dementia	19
Cancer	16

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Colin Macleod Barker Sr., MD treated as a vascular medicine specialist in Nashville, TN during 2015 were hospital care, inpatient care, cardiac procedures and minimally invasive procedures.

Volume of procedures performed by Dr. Colin Macleod Barker Sr., MD for Medicare patients.

angioplasty	110
cardiac procedures	486
catheterization	195
diagnostic procedures	30
doctor visit	586
hospital care	683
inpatient care	683
lab tests	49
minimally invasive procedures	290
stent placement (stenting)	110
vascular procedures	182

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Colin Macleod Barker Sr., MD.

**Gender**
Male	3884
Female	3686

**Ethnicity**
Non-Hispanic White	4928
Black	1520
Hispanic	866
Asian	168
Other	0
Native American	0

**Age**
From 65 to 74	2730
From 75 to 84	2036
85 and over	1264
Less than 65	1540

Conditions of Medicare patients treated by Dr. Colin Macleod Barker Sr., MD in 2015

Hypertension	75
High Cholesterol	71
Stroke	18
Ischemic Heart Disease	70
Depression	30
Chronic Kidney Disease	59
Asthma	19
Osteoperosis	9
Atrial Fibrilation	30
Heart Failure	56
Chronic Obstructive Pulmonary Disease	29
Diabetes	48
Dementia	18
Cancer	15

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Colin Macleod Barker Sr., MD treated as a vascular medicine specialist in Nashville, TN during 2016 were hospital care, inpatient care, cardiac procedures and minimally invasive procedures.

Volume of procedures performed by Dr. Colin Macleod Barker Sr., MD for Medicare patients.

angioplasty	94
cardiac procedures	531
catheterization	243
diagnostic procedures	102
doctor visit	703
hospital care	629
inpatient care	629
lab tests	74
minimally invasive procedures	347
stent placement (stenting)	94
vascular procedures	189

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Colin Macleod Barker Sr., MD.

**Gender**
Male	1648
Female	1559

**Ethnicity**
Non-Hispanic White	2160
Black	592
Hispanic	328
Asian	82
Other	0
Native American	0

**Age**
From 65 to 74	1162
From 75 to 84	959
85 and over	542
Less than 65	544

Conditions of Medicare patients treated by Dr. Colin Macleod Barker Sr., MD in 2016

Hypertension	75
High Cholesterol	72
Stroke	15
Ischemic Heart Disease	72
Depression	26
Chronic Kidney Disease	63
Asthma	28
Osteoperosis	10
Atrial Fibrilation	32
Heart Failure	57
Chronic Obstructive Pulmonary Disease	27
Diabetes	48
Dementia	20
Cancer	14

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Colin Macleod Barker Sr., MD treated as a vascular medicine specialist in Nashville, TN during 2017 were cardiac procedures, hospital care, inpatient care and minimally invasive procedures.

Volume of procedures performed by Dr. Colin Macleod Barker Sr., MD for Medicare patients.

angioplasty	134
cardiac procedures	591
catheterization	273
diagnostic procedures	72
doctor visit	640
hospital care	424
inpatient care	412
minimally invasive procedures	395
outpatient care	12
pulmonary testing	27
stent placement (stenting)	134
vascular procedures	221

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Colin Macleod Barker Sr., MD.

**Gender**
Male	1429
Female	1333

**Ethnicity**
Non-Hispanic White	1906
Black	451
Hispanic	282
Asian	72
Other	0
Native American	0

**Age**
From 65 to 74	1056
From 75 to 84	839
85 and over	453
Less than 65	414

Conditions of Medicare patients treated by Dr. Colin Macleod Barker Sr., MD in 2017

Hypertension	75
High Cholesterol	67
Stroke	13
Ischemic Heart Disease	74
Depression	27
Chronic Kidney Disease	62
Asthma	12
Osteoperosis	10
Atrial Fibrilation	32
Heart Failure	55
Chronic Obstructive Pulmonary Disease	26
Diabetes	47
Dementia	20
Cancer	15

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Colin Macleod Barker Sr., MD treated as a vascular medicine specialist in Nashville, TN during 2018 were cardiac procedures, hospital care, inpatient care and minimally invasive procedures.

Volume of procedures performed by Dr. Colin Macleod Barker Sr., MD for Medicare patients.

angioplasty	112
cardiac procedures	556
catheterization	273
diagnostic procedures	105
doctor visit	645
hospital care	478
inpatient care	478
minimally invasive procedures	375
stent placement (stenting)	112
vascular procedures	172

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Colin Macleod Barker Sr., MD.

**Gender**
Male	1123
Female	1014

**Ethnicity**
Non-Hispanic White	1468
Black	362
Hispanic	202
Asian	59
Other	0
Native American	0

**Age**
From 65 to 74	843
From 75 to 84	640
85 and over	342
Less than 65	312

Conditions of Medicare patients treated by Dr. Colin Macleod Barker Sr., MD in 2018

Hypertension	75
High Cholesterol	72
Stroke	15
Ischemic Heart Disease	72
Depression	28
Chronic Kidney Disease	63
Asthma	10
Osteoperosis	11
Atrial Fibrilation	32
Heart Failure	56
Chronic Obstructive Pulmonary Disease	25
Diabetes	45
Dementia	19
Cancer	15

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Colin Macleod Barker Sr., MD treated as a vascular medicine specialist in Nashville, TN during 2019 were cardiac procedures, minimally invasive procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Colin Macleod Barker Sr., MD for Medicare patients.

angioplasty	66
cardiac procedures	326
catheterization	134
diagnostic procedures	35
doctor visit	239
hospital care	145
inpatient care	145
minimally invasive procedures	195
stent placement (stenting)	66
vascular procedures	128

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Colin Macleod Barker Sr., MD.

**Gender**
Male	359
Female	297

**Ethnicity**
Non-Hispanic White	518
Black	81
Hispanic	33
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	259
From 75 to 84	213
85 and over	109
Less than 65	75

Conditions of Medicare patients treated by Dr. Colin Macleod Barker Sr., MD in 2019

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	75
Depression	27
Chronic Kidney Disease	62
Asthma	9
Osteoperosis	11
Atrial Fibrilation	39
Heart Failure	67
Chronic Obstructive Pulmonary Disease	25
Diabetes	42
Dementia	18
Cancer	16

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Colin Macleod Barker Sr., MD treated as a vascular medicine specialist in Nashville, TN during 2020 were cardiac procedures, minimally invasive procedures, catheterization and vascular procedures.

Volume of procedures performed by Dr. Colin Macleod Barker Sr., MD for Medicare patients.

angioplasty	78
cardiac procedures	386
catheterization	185
diagnostic procedures	68
doctor visit	194
hospital care	113
inpatient care	113
minimally invasive procedures	265
stent placement (stenting)	78
vascular procedures	152

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Colin Macleod Barker Sr., MD.

**Gender**
Male	215
Female	139

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

**Age**
From 65 to 74	141
From 75 to 84	107
85 and over	43
Less than 65	63

Conditions of Medicare patients treated by Dr. Colin Macleod Barker Sr., MD in 2020

Hypertension	75
High Cholesterol	73
Stroke	7
Ischemic Heart Disease	75
Depression	29
Chronic Kidney Disease	64
Asthma	7
Osteoperosis	9
Atrial Fibrilation	32
Heart Failure	69
Chronic Obstructive Pulmonary Disease	18
Diabetes	45
Dementia	15
Cancer	13

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Colin Macleod Barker Sr., MD treated as a vascular medicine specialist in Nashville, TN during 2021 were cardiac procedures, minimally invasive procedures, catheterization and vascular procedures.

Volume of procedures performed by Dr. Colin Macleod Barker Sr., MD for Medicare patients.

angioplasty	90
cardiac procedures	458
catheterization	249
diagnostic procedures	130
doctor visit	223
hospital care	157
inpatient care	157
minimally invasive procedures	335
stent placement (stenting)	90
vascular procedures	190

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Colin Macleod Barker Sr., MD.

**Gender**
Male	252
Female	163

**Ethnicity**
Non-Hispanic White	353
Black	40
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	161
From 75 to 84	147
85 and over	55
Less than 65	52

Conditions of Medicare patients treated by Dr. Colin Macleod Barker Sr., MD in 2021

Hypertension	75
High Cholesterol	74
Stroke	7
Ischemic Heart Disease	75
Depression	23
Chronic Kidney Disease	63
Asthma	8
Osteoperosis	7
Atrial Fibrilation	33
Heart Failure	72
Chronic Obstructive Pulmonary Disease	21
Diabetes	44
Dementia	18
Cancer	11

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Colin Macleod Barker Sr., MD treated as a vascular medicine specialist in Nashville, TN during 2022 were cardiac procedures, minimally invasive procedures, catheterization and hospital care.

Volume of procedures performed by Dr. Colin Macleod Barker Sr., MD for Medicare patients.

angioplasty	104
cardiac procedures	417
catheterization	223
diagnostic procedures	85
doctor visit	244
hospital care	157
inpatient care	157
minimally invasive procedures	291
stent placement (stenting)	104
vascular procedures	135

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Colin Macleod Barker Sr., MD.

**Gender**
Male	274
Female	189

**Ethnicity**
Non-Hispanic White	406
Black	25
Hispanic	0
Asian	0
Other	21
Native American	0

**Age**
From 65 to 74	192
From 75 to 84	152
85 and over	66
Less than 65	53

Conditions of Medicare patients treated by Dr. Colin Macleod Barker Sr., MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	15
Ischemic Heart Disease	72
Depression	21
Chronic Kidney Disease	46
Asthma	9
Osteoperosis	11
Atrial Fibrilation	47
Heart Failure	59
Chronic Obstructive Pulmonary Disease	24
Diabetes	37
Dementia	8
Cancer	13

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Colin Macleod Barker Sr., MD for Medicare patients.

The highest averages for the top procedures that Dr. Colin Macleod Barker Sr., MD treated as a vascular medicine specialist in Nashville, TN were cardiac procedures, hospital care, inpatient care and minimally invasive procedures.

angioplasty	93
cardiac procedures	412
catheterization	194
diagnostic procedures	67
doctor visit	434
hospital care	377
inpatient care	376
lab tests	45
minimally invasive procedures	266
outpatient care	12
pulmonary testing	27
stent placement (stenting)	88
vascular procedures	162

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Colin Macleod Barker Sr., MD.

**Gender**
Male	1047
Female	968

**Ethnicity**
Black / African American	364
Asian / Pacific Islander	41
Non-Hispanic White	1370
Native American / Alaskan Native	0
Hispanic	203
Other	1

**Age**
75 to 84	579
85 and over	336
Less than 65	360
65 to 74	738

Average of Total of Conditions of Medicare patients treated by Dr. Colin Macleod Barker Sr., MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Colin Macleod Barker Sr., MD treated were hypertension, ischemic heart disease, high cholesterol and heart failure.

Hypertension	68
High Cholesterol	65
Stroke	12
Ischemic Heart Disease	66
Depression	24
Chronic Kidney Disease	54
Asthma	11
Osteoporosis	9
Heart Failure	55
Chronic Obstructive Pulmonary Disease	23
Diabetes	41
Atrial Fibrillation	30
Dementia	15
Cancer	13

Education & Training

Dr. Colin Macleod Barker Sr., MD graduated from Boston University School of Medicine in 2001. He completed residency at Vanderbilt University Medical Center. He is certified by the Cardiovascular Disease - American Board of Internal Medicine and has a state license in Texas.

Medical School: Boston University School of Medicine (2001)

Residency: Vanderbilt University Medical Center (2004)

Board Certification: Cardiovascular Disease - American Board of Internal Medicine (2007)

Licensed In: Texas

Affiliations & Hospitals

Dr. Colin Macleod Barker Sr., MD is associated with these hospitals and organizations:

Vanderbilt Health

Ratings & Reviews

Dr. Colin Macleod Barker Sr., MD has an exceptional overall rating with an average of 4.9 out of 5 stars based on 219 ratings. We collect ratings and reviews of Dr. Colin Macleod Barker Sr., MD from all over the web to help you find the right in Nashville, TN.

4.9

Overall Rating

(219 Ratings)

Leave a Review

Reviews From Around The Web

Overall Rating: 5.0 2025-09-25

Patient verified via Press Ganey

My first visit w Dr. BARKER and all went very well. Impressed with Doctor listening to my concerns. No feeling of pressure to get done in a hurry.

Overall Rating: 5.0 2025-11-20

Patient verified via Press Ganey

Dr. Barker is great! He takes the time to listen--I never feel rushed.

General Payments

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

**Payments by Company**
Medtronic Vascular, Inc.	$447,848 CoreValve Evolut $206,129	Heart Valves $110,904	Resolute $67,770	STENTS $40,692	Integrity $10,176	Other $12,176
Boston Scientific Corporation	$61,315 Therapies $11,384	GENERAL THERAPIES $10,863	General - Structural Heart $10,314	GENERAL VASCULAR ACCESS $4,975	STENTS $4,419	Other $19,361
Abbott Laboratories	$34,690 Vascular $20,840	MitraClip $7,886	Mitra Clip system $1,699	MitraClip System $1,553	Aortic and Mitral Tissue Stented $745	Other $1,968
Medtronic, Inc.	$19,563 COREVALVE EVOLUT R $3,069	Resolute $1,376	CoreValve Evolut $1,142	APOLLOTM $100	ONYX FRONTIER $62	Other $13,815
Edwards Lifesciences Corporation	$10,679 Edwards SAPIEN 3 Transcatheter Heart Valve $2,057	Transcatheter Heart Valves $1,953	EDWARDS SAPIEN 3 TRANSCATHETER HEART VALVE (THV) $692	Transcatheter Heart Valve $55	$5,922
Other	$30,114 FFRct $6,442	Impella $2,952	Accucinch $1,895	Structural Heart $1,788	Vascular $1,444	Other $15,593

**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	$310,962
Travel and Lodging	$129,150
Consulting Fee	$115,500
Food and Beverage	$41,930
Compensation for serving as faculty or as a speaker for a medical education program	$4,500
Other	$2,167

Research Payments

Dr. Colin Macleod Barker Sr., MD has received 159 research payments totaling $1,452,784.

Biography

Dr. Colin Barker specializes in adult cardiology, interventional cardiology, and vascular medicine (blood vessel disease). His clinical interests include atrial septal defect, atherosclerosis, and mitral stenosis. He has a 5.0 out of 5 star average patient rating. Before completing his residency at Vanderbilt University Medical Center, Dr. Barker attended medical school at Boston University School of Medicine. In addition to English, Dr. Barker speaks Spanish. He is affiliated with Vanderbilt University Medical Center (VUMC). His practice in Nashville, TN is open to new patients as reported by Doctor.com.