In 2023, Dr. Gregory Allen St. John, MD had a list price for cardiac pacing procedures, pacemaker implantation, pacemaker replacement, pacemaker system replacement, permanent pacemaker implantation, permanent transvenous pacemaker implantation, and permanent transvenous pacemaker replacement that was lower than the list prices billed to Medicare by 95% of providers in related specialties within Arkansas. 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 10%

By Volume:

cardiac stress testing

stress EKG

By Affordability:

transesophageal echocardiography

In 2023, among providers in related specialties within Arkansas, Dr. Gregory Allen St. John, MD performed more cardiac (heart) stress testing, and stress EKG procedures for Medicare patients than 90% of them and he also had a list price for transesophageal echocardiography (TEE) that was lower than the list prices billed to Medicare by 90% 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.

Top 25%

By Volume:

cardiac catheterization

cardiac procedures

coronary angiogram

coronary angioplasty with stent

left heart catheterization

minimally invasive procedures

myocardial perfusion SPECT

nuclear scan

percutaneous coronary intervention

By Affordability:

myocardial perfusion SPECT

nuclear scan

nuclear stress test

SPECT scan

In 2012, among providers in related specialties within Arkansas, Dr. Gregory Allen St. John, MD performed more cardiac catheterization, cardiac procedures, coronary angiogram, coronary angioplasty with stent, left heart catheterization, minimally invasive procedures, myocardial perfusion SPECT, nuclear scan, and percutaneous coronary intervention (PCI) procedures for Medicare patients than 75% of them and he also had a list price for myocardial perfusion SPECT, nuclear scan, nuclear stress test (myocardial perfusion imaging), and SPECT scan 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

2012 Medicare Procedure Volume

The top procedures that Dr. Gregory Allen St. John, MD treated as an interventional cardiologist in Hot Springs, AR during 2012 were lab tests, cardiac procedures, ultrasound (sonogram) and hospital care.

Volume of procedures performed by Dr. Gregory Allen St. John, MD for Medicare patients.

ambulatory monitoring	30
blood draw	281
cardiac procedures	1049
catheterization	147
diagnostic procedures	81
doctor visit	987
hospital care	282
implant surgery	14
inpatient care	250
lab tests	1117
minimally invasive procedures	161
nuclear scan	162
outpatient care	32
preventive care	15
stent placement (stenting)	66
stress testing	162
ultrasound (sonogram)	642
vaccines	15
vascular procedures	135

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Gregory Allen St. John, MD treated as an interventional cardiologist in Hot Springs, AR during 2013 were lab tests, cardiac procedures, ultrasound (sonogram) and blood draw.

Volume of procedures performed by Dr. Gregory Allen St. John, MD for Medicare patients.

ambulatory monitoring	25
angioplasty	88
blood draw	263
cardiac procedures	757
cardioversion	11
catheterization	192
diagnostic procedures	73
doctor visit	1513
hospital care	234
inpatient care	209
lab tests	873
minimally invasive procedures	192
nuclear scan	108
outpatient care	25
stent placement (stenting)	62
stress testing	108
ultrasound (sonogram)	386
vascular procedures	119

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Allen St. John, MD.

**Gender**
Male	934
Female	885

**Ethnicity**
Non-Hispanic White	1744
Black	53
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	684
From 75 to 84	694
85 and over	290
Less than 65	151

Conditions of Medicare patients treated by Dr. Gregory Allen St. John, MD in 2013

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	67
Depression	20
Chronic Kidney Disease	21
Asthma	6
Osteoperosis	10
Atrial Fibrilation	28
Heart Failure	30
Chronic Obstructive Pulmonary Disease	22
Diabetes	30
Dementia	11
Cancer	11

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Gregory Allen St. John, MD treated as an interventional cardiologist in Hot Springs, AR during 2014 were cardiac procedures, ultrasound (sonogram), minimally invasive procedures and catheterization.

Volume of procedures performed by Dr. Gregory Allen St. John, MD for Medicare patients.

angioplasty	28
cardiac procedures	130
catheterization	67
diagnostic procedures	25
doctor visit	304
hospital care	21
inpatient care	21
minimally invasive procedures	67
stent placement (stenting)	28
ultrasound (sonogram)	77
vascular procedures	39

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Allen St. John, MD.

**Gender**
Male	184
Female	166

**Ethnicity**
Non-Hispanic White	327
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	158
From 75 to 84	98
85 and over	53
Less than 65	41

Conditions of Medicare patients treated by Dr. Gregory Allen St. John, MD in 2014

Hypertension	75
High Cholesterol	68
Stroke	6
Ischemic Heart Disease	72
Depression	20
Chronic Kidney Disease	19
Asthma	5
Osteoperosis	6
Atrial Fibrilation	18
Heart Failure	24
Chronic Obstructive Pulmonary Disease	18
Diabetes	30
Dementia	10
Cancer	11

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Gregory Allen St. John, MD treated as an interventional cardiologist in Hot Springs, AR during 2015 were cardiac procedures, ultrasound (sonogram), minimally invasive procedures and catheterization.

Volume of procedures performed by Dr. Gregory Allen St. John, MD for Medicare patients.

ambulatory monitoring	11
angioplasty	88
blood draw	90
cardiac procedures	522
catheterization	252
diagnostic procedures	120
doctor visit	1062
hospital care	197
implant surgery	17
inpatient care	197
lab tests	84
minimally invasive procedures	280
stent placement (stenting)	88
ultrasound (sonogram)	335
vascular procedures	213

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Allen St. John, MD.

**Gender**
Male	1206
Female	1274

**Ethnicity**
Non-Hispanic White	2360
Black	62
Hispanic	22
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	962
From 75 to 84	858
85 and over	356
Less than 65	304

Conditions of Medicare patients treated by Dr. Gregory Allen St. John, MD in 2015

Hypertension	75
High Cholesterol	63
Stroke	8
Ischemic Heart Disease	70
Depression	24
Chronic Kidney Disease	26
Asthma	16
Osteoperosis	8
Atrial Fibrilation	22
Heart Failure	31
Chronic Obstructive Pulmonary Disease	27
Diabetes	32
Dementia	17
Cancer	10

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Gregory Allen St. John, MD treated as an interventional cardiologist in Hot Springs, AR during 2016 were cardiac procedures, ultrasound (sonogram), minimally invasive procedures and catheterization.

Volume of procedures performed by Dr. Gregory Allen St. John, MD for Medicare patients.

angioplasty	100
blood draw	106
cardiac procedures	662
catheterization	268
diagnostic procedures	130
doctor visit	1340
hospital care	201
implant surgery	26
inpatient care	201
lab tests	95
minimally invasive procedures	319
stent placement (stenting)	76
stress testing	20
ultrasound (sonogram)	450
vascular procedures	232

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Allen St. John, MD.

**Gender**
Male	771
Female	789

**Ethnicity**
Non-Hispanic White	1476
Black	50
Hispanic	13
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	587
From 75 to 84	532
85 and over	241
Less than 65	200

Conditions of Medicare patients treated by Dr. Gregory Allen St. John, MD in 2016

Hypertension	75
High Cholesterol	63
Stroke	9
Ischemic Heart Disease	69
Depression	24
Chronic Kidney Disease	31
Asthma	28
Osteoperosis	7
Atrial Fibrilation	22
Heart Failure	32
Chronic Obstructive Pulmonary Disease	27
Diabetes	34
Dementia	18
Cancer	10

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Gregory Allen St. John, MD treated as an interventional cardiologist in Hot Springs, AR during 2017 were cardiac procedures, ultrasound (sonogram), minimally invasive procedures and catheterization.

Volume of procedures performed by Dr. Gregory Allen St. John, MD for Medicare patients.

angioplasty	114
blood draw	144
cardiac procedures	789
catheterization	343
diagnostic procedures	172
doctor visit	1448
hospital care	237
implant surgery	26
inpatient care	207
lab tests	136
minimally invasive procedures	369
outpatient care	30
stent placement (stenting)	114
stress testing	17
ultrasound (sonogram)	461
vascular procedures	230

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Allen St. John, MD.

**Gender**
Male	788
Female	806

**Ethnicity**
Non-Hispanic White	1509
Black	45
Hispanic	11
Asian	0
Other	16
Native American	0

**Age**
From 65 to 74	609
From 75 to 84	516
85 and over	247
Less than 65	222

Conditions of Medicare patients treated by Dr. Gregory Allen St. John, MD in 2017

Hypertension	75
High Cholesterol	61
Stroke	8
Ischemic Heart Disease	73
Depression	27
Chronic Kidney Disease	36
Asthma	10
Osteoperosis	8
Atrial Fibrilation	21
Heart Failure	36
Chronic Obstructive Pulmonary Disease	30
Diabetes	36
Dementia	19
Cancer	11

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Gregory Allen St. John, MD treated as an interventional cardiologist in Hot Springs, AR during 2018 were cardiac procedures, ultrasound (sonogram), minimally invasive procedures and catheterization.

Volume of procedures performed by Dr. Gregory Allen St. John, MD for Medicare patients.

angioplasty	108
blood draw	107
cardiac procedures	870
cardioversion	12
catheterization	313
diagnostic procedures	151
doctor visit	1556
hospital care	199
implant surgery	35
inpatient care	199
lab tests	95
minimally invasive procedures	367
stent placement (stenting)	108
ultrasound (sonogram)	559
vascular procedures	188

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Allen St. John, MD.

**Gender**
Male	834
Female	799

**Ethnicity**
Non-Hispanic White	1527
Black	58
Hispanic	15
Asian	0
Other	16
Native American	0

**Age**
From 65 to 74	636
From 75 to 84	534
85 and over	249
Less than 65	214

Conditions of Medicare patients treated by Dr. Gregory Allen St. John, MD in 2018

Hypertension	75
High Cholesterol	65
Stroke	8
Ischemic Heart Disease	75
Depression	29
Chronic Kidney Disease	38
Asthma	7
Osteoperosis	7
Atrial Fibrilation	22
Heart Failure	37
Chronic Obstructive Pulmonary Disease	28
Diabetes	36
Dementia	18
Cancer	10

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Gregory Allen St. John, MD treated as an interventional cardiologist in Hot Springs, AR during 2019 were cardiac procedures, ultrasound (sonogram), minimally invasive procedures and catheterization.

Volume of procedures performed by Dr. Gregory Allen St. John, MD for Medicare patients.

angioplasty	182
blood draw	86
cardiac procedures	1244
cardioversion	13
catheterization	450
diagnostic procedures	193
doctor visit	1857
hospital care	305
implant surgery	29
inpatient care	305
minimally invasive procedures	499
stent placement (stenting)	150
stress testing	14
ultrasound (sonogram)	804
vascular procedures	258

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Allen St. John, MD.

**Gender**
Male	1000
Female	894

**Ethnicity**
Non-Hispanic White	1766
Black	65
Hispanic	25
Asian	0
Other	18
Native American	0

**Age**
From 65 to 74	708
From 75 to 84	690
85 and over	272
Less than 65	224

Conditions of Medicare patients treated by Dr. Gregory Allen St. John, MD in 2019

Hypertension	75
High Cholesterol	70
Stroke	8
Ischemic Heart Disease	75
Depression	29
Chronic Kidney Disease	41
Asthma	8
Osteoperosis	9
Atrial Fibrilation	24
Heart Failure	36
Chronic Obstructive Pulmonary Disease	30
Diabetes	37
Dementia	16
Cancer	11

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Gregory Allen St. John, MD treated as an interventional cardiologist in Hot Springs, AR during 2020 were cardiac procedures, ultrasound (sonogram), minimally invasive procedures and catheterization.

Volume of procedures performed by Dr. Gregory Allen St. John, MD for Medicare patients.

angioplasty	216
blood draw	50
cardiac procedures	1417
cardioversion	36
catheterization	536
diagnostic procedures	229
doctor visit	1208
hospital care	445
implant surgery	40
inpatient care	445
minimally invasive procedures	611
stent placement (stenting)	182
stress testing	12
ultrasound (sonogram)	865
vascular procedures	265

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Allen St. John, MD.

**Gender**
Male	837
Female	862

**Ethnicity**
Non-Hispanic White	1594
Black	65
Hispanic	12
Asian	0
Other	12
Native American	0

**Age**
From 65 to 74	638
From 75 to 84	592
85 and over	260
Less than 65	209

Conditions of Medicare patients treated by Dr. Gregory Allen St. John, MD in 2020

Hypertension	75
High Cholesterol	68
Stroke	9
Ischemic Heart Disease	75
Depression	30
Chronic Kidney Disease	43
Asthma	10
Osteoperosis	9
Atrial Fibrilation	23
Heart Failure	38
Chronic Obstructive Pulmonary Disease	31
Diabetes	35
Dementia	18
Cancer	10

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Gregory Allen St. John, MD treated as an interventional cardiologist in Hot Springs, AR during 2021 were cardiac procedures, ultrasound (sonogram), minimally invasive procedures and catheterization.

Volume of procedures performed by Dr. Gregory Allen St. John, MD for Medicare patients.

angioplasty	124
blood draw	37
cardiac procedures	1381
cardioversion	22
catheterization	357
diagnostic procedures	171
doctor visit	1218
hospital care	156
implant surgery	29
inpatient care	156
minimally invasive procedures	408
nuclear scan	150
stent placement (stenting)	124
stress testing	284
ultrasound (sonogram)	728
vascular procedures	188

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Allen St. John, MD.

**Gender**
Male	816
Female	786

**Ethnicity**
Non-Hispanic White	1512
Black	41
Hispanic	16
Asian	0
Other	16
Native American	0

**Age**
From 65 to 74	617
From 75 to 84	598
85 and over	248
Less than 65	139

Conditions of Medicare patients treated by Dr. Gregory Allen St. John, MD in 2021

Hypertension	75
High Cholesterol	68
Stroke	8
Ischemic Heart Disease	75
Depression	27
Chronic Kidney Disease	43
Asthma	8
Osteoperosis	9
Atrial Fibrilation	22
Heart Failure	35
Chronic Obstructive Pulmonary Disease	26
Diabetes	35
Dementia	16
Cancer	11

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Gregory Allen St. John, MD treated as an interventional cardiologist in Hot Springs, AR during 2022 were cardiac procedures, ultrasound (sonogram), stress testing and minimally invasive procedures.

Volume of procedures performed by Dr. Gregory Allen St. John, MD for Medicare patients.

angioplasty	126
cardiac procedures	1445
cardioversion	14
catheterization	350
diagnostic procedures	147
doctor visit	1105
emergency care	14
hospital care	83
implant surgery	14
inpatient care	72
minimally invasive procedures	402
nuclear scan	214
outpatient care	11
stent placement (stenting)	126
stress testing	433
ultrasound (sonogram)	661
vascular procedures	160

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory Allen St. John, MD.

**Gender**
Male	740
Female	784

**Ethnicity**
Non-Hispanic White	1440
Black	46
Hispanic	15
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	609
From 75 to 84	549
85 and over	254
Less than 65	112

Conditions of Medicare patients treated by Dr. Gregory Allen St. John, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	14
Ischemic Heart Disease	61
Depression	29
Chronic Kidney Disease	27
Asthma	12
Osteoperosis	14
Atrial Fibrilation	35
Heart Failure	32
Chronic Obstructive Pulmonary Disease	32
Diabetes	36
Dementia	13
Cancer	14

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Gregory Allen St. John, MD for Medicare patients.

The highest averages for the top procedures that Dr. Gregory Allen St. John, MD treated as an interventional cardiologist in Hot Springs, AR were cardiac procedures, ultrasound (sonogram), lab tests and minimally invasive procedures.

ambulatory monitoring	22
angioplasty	117
blood draw	129
cardiac procedures	933
cardioversion	18
catheterization	297
diagnostic procedures	135
doctor visit	1236
emergency care	14
hospital care	214
implant surgery	25
inpatient care	205
lab tests	400
minimally invasive procedures	334
nuclear scan	158
outpatient care	24
preventive care	15
stent placement (stenting)	102
stress testing	131
ultrasound (sonogram)	542
vaccines	15
vascular procedures	184

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Gregory Allen St. John, MD.

**Gender**
Male	737
Female	731

**Ethnicity**
Black / African American	44
Asian / Pacific Islander	0
Non-Hispanic White	1386
Native American / Alaskan Native	0
Hispanic	11
Other	7

**Age**
75 to 84	514
85 and over	224
Less than 65	165
65 to 74	564

Average of Total of Conditions of Medicare patients treated by Dr. Gregory Allen St. John, MD From 2012 - 2022

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

Hypertension	68
High Cholesterol	61
Stroke	7
Ischemic Heart Disease	64
Depression	23
Chronic Kidney Disease	29
Asthma	10
Osteoporosis	7
Heart Failure	30
Chronic Obstructive Pulmonary Disease	24
Diabetes	31
Atrial Fibrillation	21
Cancer	9
Dementia	14

Education & Training

He has a state license in Arkansas.

Licensed In: Arkansas

Ratings & Reviews

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General Payments

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

**Payments by Company**
Medtronic Vascular, Inc.	$1,424 Micra $394	Resolute $324	STENTS $215	Advisa $206	Pacemakers $94	Other $190
Amgen Inc.	$1,091 Repatha $1,005	Corlanor $50	$36
Novartis Pharmaceuticals Corporation	$1,047 ENTRESTO $1,008	LEQVIO $20	TEKTURNA $20
Janssen Pharmaceuticals, Inc	$774 XARELTO $774
AstraZeneca Pharmaceuticals LP	$552 BRILINTA $478	FARXIGA $61	$13
Other	$3,301 Quadra Assura CRT Defibrillator $176	Lexiscan $175	Effient $157	KENGREAL $138	ELIQUIS $129	Other $2,525

**Types of Payments**
Food and Beverage	$7,860
Travel and Lodging	$329

Biography

Dr. Gregory St. John, who practices in Hot Springs, AR, is a medical specialist in adult cardiology and interventional cardiology. He graduated from the University of Arkansas for Medical Sciences College of Medicine. His practice in Hot Springs, AR is open to new patients as reported by Doctor.com.

Select Year:

Dr. Gregory Allen St. John, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Gregory Allen St. John, MD in 2023

By Affordability:

By Volume:

By Affordability:

By Volume:

By Affordability:

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 Allen St. John, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory Allen St. John, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory Allen St. John, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory Allen St. John, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory Allen St. John, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory Allen St. John, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory Allen St. John, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory Allen St. John, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory Allen St. John, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Gregory Allen St. John, 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 Allen St. John, MD From 2012 - 2022

Education & Training

Ratings & Reviews

General Payments

Biography

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