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Dr. Marshall Shannon Shook II, MD

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Specializes in: Adult Cardiology

300 Midtown Drive
Beaufort, SC 29906

(843) 770-0404

Dr. Marshall Shannon Shook II, MD is a cardiologist in Charleston, SC specializing in adult cardiology. Dr. Marshall Shannon Shook II, MD is affiliated with U.S. Department of Veterans Affairs.

Office Locations

109 Bee Street Ralph H. Johnson Vamc (534)
Charleston, SC 29401

open_in_new

300 Midtown Drive
Beaufort, SC 29906

(843) 770-0404

1-844-295-9872

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Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Marshall Shannon Shook II, MD treated as a cardiologist in Charleston, SC during 2012 were inpatient care, hospital care, cardiac procedures and ultrasound (sonogram).

Volume of procedures performed by Dr. Marshall Shannon Shook II, MD for Medicare patients.

ambulatory monitoring	63
cardiac procedures	557
catheterization	22
diagnostic procedures	22
doctor visit	1368
hospital care	1156
inpatient care	1156
minimally invasive procedures	22
nuclear scan	65
preventive care	68
stress testing	114
ultrasound (sonogram)	358
vaccines	68
vascular procedures	22

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Marshall Shannon Shook II, MD treated as a cardiologist in Charleston, SC during 2013 were inpatient care, hospital care, cardiac procedures and ultrasound (sonogram).

Volume of procedures performed by Dr. Marshall Shannon Shook II, MD for Medicare patients.

ambulatory monitoring	45
cardiac procedures	436
catheterization	11
diagnostic procedures	11
doctor visit	1414
hospital care	1323
inpatient care	1323
minimally invasive procedures	11
nuclear scan	56
preventive care	20
stress testing	101
ultrasound (sonogram)	279
vaccines	20
vascular procedures	11

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Marshall Shannon Shook II, MD.

**Gender**
Male	572
Female	559

**Ethnicity**
Non-Hispanic White	835
Black	271
Hispanic	13
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	422
From 75 to 84	413
85 and over	203
Less than 65	93

Conditions of Medicare patients treated by Dr. Marshall Shannon Shook II, MD in 2013

Hypertension	75
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	63
Depression	14
Chronic Kidney Disease	28
Asthma	4
Osteoperosis	5
Atrial Fibrilation	31
Heart Failure	35
Chronic Obstructive Pulmonary Disease	17
Diabetes	40
Dementia	18
Cancer	13

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Marshall Shannon Shook II, MD treated as a cardiologist in Charleston, SC during 2014 were cardiac procedures, hospital care, inpatient care and ultrasound (sonogram).

Volume of procedures performed by Dr. Marshall Shannon Shook II, MD for Medicare patients.

ambulatory monitoring	42
cardiac procedures	965
doctor visit	1361
hospital care	881
inpatient care	881
lab tests	109
nuclear scan	213
stress testing	422
ultrasound (sonogram)	501

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Marshall Shannon Shook II, MD.

**Gender**
Male	632
Female	606

**Ethnicity**
Non-Hispanic White	930
Black	280
Hispanic	15
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	477
From 75 to 84	445
85 and over	214
Less than 65	102

Conditions of Medicare patients treated by Dr. Marshall Shannon Shook II, MD in 2014

Hypertension	75
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	60
Depression	14
Chronic Kidney Disease	26
Asthma	5
Osteoperosis	4
Atrial Fibrilation	28
Heart Failure	30
Chronic Obstructive Pulmonary Disease	16
Diabetes	38
Dementia	13
Cancer	11

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Marshall Shannon Shook II, MD treated as a cardiologist in Charleston, SC during 2015 were hospital care, inpatient care, cardiac procedures and ultrasound (sonogram).

Volume of procedures performed by Dr. Marshall Shannon Shook II, MD for Medicare patients.

ambulatory monitoring	36
cardiac procedures	1186
doctor visit	1360
hospital care	1249
inpatient care	1218
lab tests	367
nuclear scan	233
outpatient care	31
stress testing	456
ultrasound (sonogram)	694

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Marshall Shannon Shook II, MD.

**Gender**
Male	1794
Female	1704

**Ethnicity**
Non-Hispanic White	2520
Black	858
Hispanic	0
Asian	0
Other	60
Native American	0

**Age**
From 65 to 74	1406
From 75 to 84	1210
85 and over	528
Less than 65	354

Conditions of Medicare patients treated by Dr. Marshall Shannon Shook II, MD in 2015

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	55
Depression	14
Chronic Kidney Disease	31
Asthma	11
Osteoperosis	4
Atrial Fibrilation	25
Heart Failure	29
Chronic Obstructive Pulmonary Disease	17
Diabetes	40
Dementia	14
Cancer	14

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Marshall Shannon Shook II, MD treated as a cardiologist in Charleston, SC during 2016 were cardiac procedures, hospital care, inpatient care and ultrasound (sonogram).

Volume of procedures performed by Dr. Marshall Shannon Shook II, MD for Medicare patients.

ambulatory monitoring	26
cardiac procedures	1281
doctor visit	1375
hospital care	1023
inpatient care	906
lab tests	370
nuclear scan	273
outpatient care	117
stress testing	541
ultrasound (sonogram)	714

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Marshall Shannon Shook II, MD.

**Gender**
Male	991
Female	1092

**Ethnicity**
Non-Hispanic White	1526
Black	497
Hispanic	0
Asian	0
Other	26
Native American	0

**Age**
From 65 to 74	898
From 75 to 84	691
85 and over	277
Less than 65	217

Conditions of Medicare patients treated by Dr. Marshall Shannon Shook II, MD in 2016

Hypertension	75
High Cholesterol	73
Stroke	7
Ischemic Heart Disease	50
Depression	17
Chronic Kidney Disease	36
Asthma	19
Osteoperosis	4
Atrial Fibrilation	24
Heart Failure	27
Chronic Obstructive Pulmonary Disease	18
Diabetes	39
Dementia	15
Cancer	13

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Marshall Shannon Shook II, MD treated as a cardiologist in Charleston, SC during 2017 were cardiac procedures, hospital care, inpatient care and ultrasound (sonogram).

Volume of procedures performed by Dr. Marshall Shannon Shook II, MD for Medicare patients.

ambulatory monitoring	13
cardiac procedures	1253
doctor visit	1433
hospital care	1023
inpatient care	896
lab tests	121
nuclear scan	269
outpatient care	127
stress testing	526
ultrasound (sonogram)	714

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Marshall Shannon Shook II, MD.

**Gender**
Male	1188
Female	1255

**Ethnicity**
Non-Hispanic White	1750
Black	616
Hispanic	0
Asian	0
Other	43
Native American	0

**Age**
From 65 to 74	1022
From 75 to 84	795
85 and over	339
Less than 65	287

Conditions of Medicare patients treated by Dr. Marshall Shannon Shook II, MD in 2017

Hypertension	75
High Cholesterol	66
Stroke	8
Ischemic Heart Disease	46
Depression	18
Chronic Kidney Disease	39
Asthma	6
Osteoperosis	4
Atrial Fibrilation	24
Heart Failure	27
Chronic Obstructive Pulmonary Disease	19
Diabetes	38
Dementia	16
Cancer	12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Marshall Shannon Shook II, MD treated as a cardiologist in Charleston, SC during 2018 were cardiac procedures, hospital care, inpatient care and ultrasound (sonogram).

Volume of procedures performed by Dr. Marshall Shannon Shook II, MD for Medicare patients.

ambulatory monitoring	20
cardiac procedures	1123
doctor visit	1610
hospital care	701
inpatient care	684
lab tests	111
nuclear scan	236
outpatient care	17
stress testing	472
ultrasound (sonogram)	631

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Marshall Shannon Shook II, MD.

**Gender**
Male	1182
Female	1235

**Ethnicity**
Non-Hispanic White	1717
Black	632
Hispanic	0
Asian	0
Other	34
Native American	0

**Age**
From 65 to 74	982
From 75 to 84	787
85 and over	370
Less than 65	278

Conditions of Medicare patients treated by Dr. Marshall Shannon Shook II, MD in 2018

Hypertension	75
High Cholesterol	72
Stroke	7
Ischemic Heart Disease	48
Depression	20
Chronic Kidney Disease	42
Asthma	5
Osteoperosis	5
Atrial Fibrilation	24
Heart Failure	29
Chronic Obstructive Pulmonary Disease	21
Diabetes	41
Dementia	20
Cancer	13

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Marshall Shannon Shook II, MD treated as a cardiologist in Charleston, SC during 2019 were cardiac procedures, hospital care, inpatient care and ultrasound (sonogram).

Volume of procedures performed by Dr. Marshall Shannon Shook II, MD for Medicare patients.

ambulatory monitoring	14
cardiac procedures	1181
doctor visit	1546
hospital care	730
inpatient care	730
lab tests	130
nuclear scan	226
stress testing	451
ultrasound (sonogram)	716

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Marshall Shannon Shook II, MD.

**Gender**
Male	1218
Female	1232

**Ethnicity**
Non-Hispanic White	1750
Black	624
Hispanic	0
Asian	0
Other	41
Native American	0

**Age**
From 65 to 74	986
From 75 to 84	837
85 and over	351
Less than 65	276

Conditions of Medicare patients treated by Dr. Marshall Shannon Shook II, MD in 2019

Hypertension	75
High Cholesterol	74
Stroke	7
Ischemic Heart Disease	47
Depression	24
Chronic Kidney Disease	43
Asthma	7
Osteoperosis	5
Atrial Fibrilation	25
Heart Failure	30
Chronic Obstructive Pulmonary Disease	22
Diabetes	43
Dementia	20
Cancer	15

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Marshall Shannon Shook II, MD treated as a cardiologist in Charleston, SC during 2020 were cardiac procedures, hospital care, inpatient care and ultrasound (sonogram).

Volume of procedures performed by Dr. Marshall Shannon Shook II, MD for Medicare patients.

ambulatory monitoring	19
cardiac procedures	957
doctor visit	1262
hospital care	694
inpatient care	694
lab tests	129
nuclear scan	157
stress testing	317
ultrasound (sonogram)	621

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Marshall Shannon Shook II, MD.

**Gender**
Male	1179
Female	1165

**Ethnicity**
Non-Hispanic White	1725
Black	532
Hispanic	0
Asian	0
Other	48
Native American	0

**Age**
From 65 to 74	942
From 75 to 84	808
85 and over	373
Less than 65	221

Conditions of Medicare patients treated by Dr. Marshall Shannon Shook II, MD in 2020

Hypertension	75
High Cholesterol	73
Stroke	8
Ischemic Heart Disease	48
Depression	24
Chronic Kidney Disease	46
Asthma	6
Osteoperosis	5
Atrial Fibrilation	20
Heart Failure	29
Chronic Obstructive Pulmonary Disease	21
Diabetes	41
Dementia	21
Cancer	15

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Marshall Shannon Shook II, MD treated as a cardiologist in Charleston, SC during 2021 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Marshall Shannon Shook II, MD for Medicare patients.

cardiac procedures	793
doctor visit	1159
hospital care	439
inpatient care	406
nuclear scan	141
outpatient care	33
stress testing	285
ultrasound (sonogram)	508

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Marshall Shannon Shook II, MD.

**Gender**
Male	1028
Female	1021

**Ethnicity**
Non-Hispanic White	1532
Black	432
Hispanic	24
Asian	12
Other	49
Native American	0

**Age**
From 65 to 74	837
From 75 to 84	736
85 and over	319
Less than 65	157

Conditions of Medicare patients treated by Dr. Marshall Shannon Shook II, MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	47
Depression	20
Chronic Kidney Disease	43
Asthma	6
Osteoperosis	5
Atrial Fibrilation	22
Heart Failure	27
Chronic Obstructive Pulmonary Disease	18
Diabetes	39
Dementia	22
Cancer	14

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Marshall Shannon Shook II, MD treated as a cardiologist in Charleston, SC during 2022 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Marshall Shannon Shook II, MD for Medicare patients.

cardiac procedures	258
doctor visit	308
hospital care	120
inpatient care	120
nuclear scan	39
stress testing	79
ultrasound (sonogram)	179

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Marshall Shannon Shook II, MD.

**Gender**
Male	472
Female	461

**Ethnicity**
Non-Hispanic White	713
Black	181
Hispanic	0
Asian	0
Other	15
Native American	0

**Age**
From 65 to 74	323
From 75 to 84	374
85 and over	176
Less than 65	60

Conditions of Medicare patients treated by Dr. Marshall Shannon Shook II, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	42
Depression	20
Chronic Kidney Disease	38
Asthma	8
Osteoperosis	7
Atrial Fibrilation	39
Heart Failure	27
Chronic Obstructive Pulmonary Disease	23
Diabetes	42
Dementia	14
Cancer	18

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Marshall Shannon Shook II, MD for Medicare patients.

The highest averages for the top procedures that Dr. Marshall Shannon Shook II, MD treated as a cardiologist in Charleston, SC were cardiac procedures, hospital care, inpatient care and ultrasound (sonogram).

ambulatory monitoring	30
cardiac procedures	908
catheterization	16
diagnostic procedures	16
doctor visit	1290
hospital care	849
inpatient care	819
lab tests	191
minimally invasive procedures	16
nuclear scan	173
outpatient care	65
preventive care	44
stress testing	342
ultrasound (sonogram)	537
vaccines	44
vascular procedures	16

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Marshall Shannon Shook II, MD.

**Gender**
Male	932
Female	939

**Ethnicity**
Black / African American	447
Asian / Pacific Islander	1
Non-Hispanic White	1363
Hispanic	4
Native American / Alaskan Native	0
Other	28

**Age**
75 to 84	645
85 and over	286
Less than 65	185
65 to 74	754

Average of Total of Conditions of Medicare patients treated by Dr. Marshall Shannon Shook II, MD From 2012 - 2022

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

Hypertension	68
High Cholesterol	66
Stroke	7
Ischemic Heart Disease	46
Depression	16
Chronic Kidney Disease	33
Asthma	7
Osteoporosis	4
Heart Failure	26
Chronic Obstructive Pulmonary Disease	17
Diabetes	36
Atrial Fibrillation	23
Cancer	12
Dementia	15

Education & Training

He has a state license in South Carolina.

Licensed In: South Carolina

Affiliations & Hospitals

Dr. Marshall Shannon Shook II, MD is associated with these hospitals and organizations:

U.S. Department of Veterans Affairs

Ratings & Reviews

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General Payments

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

**Payments by Company**
St. Jude Medical, Inc.	$567 CRM $502	Electrophysiology $20	Unify Assura $17	Allure $17	Fortify Assura and Ellipse $12
Abbott Laboratories	$251 Mitra Clip system $81	Confirm Rx $46	Fortify Assura, Ellipse ICD $37	Assurity Pacemaker $24	Pacemakers $20	Other $43
Boston Scientific Corporation	$202 WATCHMAN $141	SQ-RX PULSE GENERATOR $38	GENERAL BRADY $12	GENERAL - TACHY GENERATORS $11
Medtronic Vascular, Inc.	$86 Arctic Front $42	Reveal LINQ $19	CVI $14	Cardiac Diagnostics and Monitoring $11
Boehringer Ingelheim Pharmaceuticals, Inc.	$86 Pradaxa $72	JARDIANCE $14
Other	$451 ENTRESTO $77	XARELTO $72	Repatha $68	Oasis $59	TANZEUM $48	Other $128

**Types of Payments**
Food and Beverage	$1,643

Biography

Dr. Marshall Shook practices adult cardiology. Dr. Shook is affiliated with U.S. Department of Veterans Affairs.

Select Year:

Dr. Marshall Shannon Shook II, MD

Office Locations

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. Marshall Shannon Shook II, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Marshall Shannon Shook II, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Marshall Shannon Shook II, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Marshall Shannon Shook II, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Marshall Shannon Shook II, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Marshall Shannon Shook II, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Marshall Shannon Shook II, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Marshall Shannon Shook II, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Marshall Shannon Shook II, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Marshall Shannon Shook II, 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. Marshall Shannon Shook II, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

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