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Home > FL Providers > Cardiac Electrophysiologists

Dr. Stephen G. Keim, MD

Accepting New Patients

(Dr. Stephen George Keim, M.D.)

(362 Ratings)

Specializes in: Cardiac Electrophysiology (Heart Rhythm) and Adult Cardiology

Washington University in St. Louis School of Medicine

Professional interests include: electrocardiogram (EKG)

655 West 8th Street Ambulatory Care Center, 5th Floor
Jacksonville, FL 32209

(904) 383-1011

Dr. Stephen G. Keim, MD is a cardiac electrophysiologist in Jacksonville, FL specializing in cardiac electrophysiology (heart rhythm) and adult cardiology. He graduated from Washington University in St. Louis School of Medicine. Dr. Stephen G. Keim, MD is affiliated with UF Health Jacksonville and UNIVERSITY OF FLORIDA JACKSONVILLE PHYSICIANS, INC.

Office Locations

655 West 8th Street Ambulatory Care Center, 5th Floor
Jacksonville, FL 32209

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15255 Max Leggett Parkway Suite 3600
Jacksonville, FL 32218

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10475 CENTURION PARKWAY NORTH CENTERONE BUILDING, SUITE 201
JACKSONVILLE, FL 32256

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Noteworthy Medicare Patient Procedures Performed by Dr. Stephen G. Keim, MD in 2023

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

Top 25%

By Affordability:

hospital care

inpatient care

inpatient hospital care

In 2012, Dr. Stephen G. Keim, MD had a list price for hospital care, inpatient care, and inpatient hospital care (for patient admitted to hospital) that was lower than the list prices billed to Medicare by 75% of providers in related specialties within Florida. 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. Stephen G. Keim, MD treated as a cardiac electrophysiologist in Jacksonville, FL during 2012 were cardiac procedures, lab tests, stress testing and hospital care.

Volume of procedures performed by Dr. Stephen G. Keim, MD for Medicare patients.

ablation	154
ambulatory monitoring	46
cardiac procedures	1789
cardioversion	45
catheterization	77
diagnostic procedures	91
doctor visit	3522
hospital care	454
implant surgery	205
implantable cardioverter-defibrillator (ICD) replacement	65
inpatient care	443
lab tests	1428
minimally invasive procedures	330
nuclear scan	449
outpatient care	11
stress testing	1054
ultrasound (sonogram)	418
vascular procedures	117

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Stephen G. Keim, MD treated as a cardiac electrophysiologist in Jacksonville, FL during 2013 were cardiac procedures, stress testing, lab tests and nuclear scan.

Volume of procedures performed by Dr. Stephen G. Keim, MD for Medicare patients.

ablation	112
ambulatory monitoring	36
cardiac procedures	1818
cardioversion	48
catheterization	56
diagnostic procedures	70
doctor visit	3018
hospital care	341
implant surgery	142
implantable cardioverter-defibrillator (ICD) replacement	104
inpatient care	326
lab tests	1199
minimally invasive procedures	287
nuclear scan	534
outpatient care	15
stress testing	1210
ultrasound (sonogram)	419
vascular procedures	59

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Stephen G. Keim, MD.

**Gender**
Male	1670
Female	1406

**Ethnicity**
Non-Hispanic White	2658
Black	359
Hispanic	30
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	1191
From 75 to 84	1117
85 and over	486
Less than 65	282

Conditions of Medicare patients treated by Dr. Stephen G. Keim, MD in 2013

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	66
Depression	18
Chronic Kidney Disease	36
Asthma	7
Osteoperosis	6
Atrial Fibrilation	38
Heart Failure	41
Chronic Obstructive Pulmonary Disease	24
Diabetes	40
Dementia	13
Cancer	14

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Stephen G. Keim, MD treated as a cardiac electrophysiologist in Jacksonville, FL during 2014 were cardiac procedures, lab tests, stress testing and nuclear scan.

Volume of procedures performed by Dr. Stephen G. Keim, MD for Medicare patients.

abdominal imaging	11
ablation	106
ambulatory monitoring	24
cardiac procedures	1383
cardioversion	48
catheterization	53
diagnostic procedures	53
doctor visit	2852
hospital care	373
implant surgery	137
implantable cardioverter-defibrillator (ICD) replacement	62
inpatient care	342
lab tests	956
minimally invasive procedures	267
nuclear scan	425
outpatient care	31
pelvic imaging	11
stress testing	948
ultrasound (sonogram)	322
vascular procedures	116

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Stephen G. Keim, MD.

**Gender**
Male	1512
Female	1214

**Ethnicity**
Non-Hispanic White	2400
Black	285
Hispanic	24
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	1036
From 75 to 84	1048
85 and over	390
Less than 65	252

Conditions of Medicare patients treated by Dr. Stephen G. Keim, MD in 2014

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	65
Depression	16
Chronic Kidney Disease	35
Asthma	7
Osteoperosis	5
Atrial Fibrilation	41
Heart Failure	40
Chronic Obstructive Pulmonary Disease	22
Diabetes	40
Dementia	12
Cancer	11

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Stephen G. Keim, MD treated as a cardiac electrophysiologist in Jacksonville, FL during 2015 were cardiac procedures, stress testing, lab tests and nuclear scan.

Volume of procedures performed by Dr. Stephen G. Keim, MD for Medicare patients.

ablation	130
ambulatory monitoring	56
cardiac procedures	1793
cardioversion	54
catheterization	65
diagnostic procedures	71
doctor visit	3274
hospital care	437
implant surgery	113
implantable cardioverter-defibrillator (ICD) replacement	98
inpatient care	409
lab tests	978
minimally invasive procedures	267
nuclear scan	517
outpatient care	28
stress testing	1139
ultrasound (sonogram)	514
vascular procedures	128

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Stephen G. Keim, MD.

**Gender**
Male	3650
Female	3132

**Ethnicity**
Non-Hispanic White	5870
Black	790
Hispanic	0
Asian	0
Other	60
Native American	0

**Age**
From 65 to 74	2626
From 75 to 84	2518
85 and over	986
Less than 65	652

Conditions of Medicare patients treated by Dr. Stephen G. Keim, MD in 2015

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	63
Depression	18
Chronic Kidney Disease	37
Asthma	16
Osteoperosis	6
Atrial Fibrilation	40
Heart Failure	39
Chronic Obstructive Pulmonary Disease	23
Diabetes	42
Dementia	12
Cancer	13

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Stephen G. Keim, MD treated as a cardiac electrophysiologist in Jacksonville, FL during 2016 were cardiac procedures, stress testing, lab tests and hospital care.

Volume of procedures performed by Dr. Stephen G. Keim, MD for Medicare patients.

ablation	108
ambulatory monitoring	18
cardiac procedures	1973
cardioversion	89
catheterization	54
diagnostic procedures	54
doctor visit	3392
hospital care	616
implant surgery	118
implantable cardioverter-defibrillator (ICD) replacement	104
inpatient care	568
lab tests	888
minimally invasive procedures	259
nuclear scan	599
outpatient care	48
stress testing	1363
ultrasound (sonogram)	531
vascular procedures	126

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Stephen G. Keim, MD.

**Gender**
Male	2219
Female	1963

**Ethnicity**
Non-Hispanic White	3542
Black	560
Hispanic	29
Asian	11
Other	40
Native American	0

**Age**
From 65 to 74	1583
From 75 to 84	1532
85 and over	641
Less than 65	426

Conditions of Medicare patients treated by Dr. Stephen G. Keim, MD in 2016

Hypertension	75
High Cholesterol	75
Stroke	12
Ischemic Heart Disease	61
Depression	19
Chronic Kidney Disease	44
Asthma	25
Osteoperosis	6
Atrial Fibrilation	38
Heart Failure	37
Chronic Obstructive Pulmonary Disease	23
Diabetes	42
Dementia	15
Cancer	12

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Stephen G. Keim, MD treated as a cardiac electrophysiologist in Jacksonville, FL during 2017 were cardiac procedures, stress testing, lab tests and hospital care.

Volume of procedures performed by Dr. Stephen G. Keim, MD for Medicare patients.

ablation	98
ambulatory monitoring	42
cardiac procedures	2247
cardioversion	87
catheterization	49
device removal	12
diagnostic procedures	61
doctor visit	3554
hospital care	734
implant surgery	88
implantable cardioverter-defibrillator (ICD) replacement	74
inpatient care	700
lab tests	974
minimally invasive procedures	237
nuclear scan	613
outpatient care	34
stress testing	1442
ultrasound (sonogram)	707
vascular procedures	93

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Stephen G. Keim, MD.

**Gender**
Male	2349
Female	2196

**Ethnicity**
Non-Hispanic White	3777
Black	651
Hispanic	40
Asian	0
Other	57
Native American	0

**Age**
From 65 to 74	1750
From 75 to 84	1628
85 and over	717
Less than 65	450

Conditions of Medicare patients treated by Dr. Stephen G. Keim, MD in 2017

Hypertension	75
High Cholesterol	71
Stroke	12
Ischemic Heart Disease	60
Depression	21
Chronic Kidney Disease	47
Asthma	8
Osteoperosis	6
Atrial Fibrilation	36
Heart Failure	36
Chronic Obstructive Pulmonary Disease	24
Diabetes	43
Dementia	15
Cancer	12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Stephen G. Keim, MD treated as a cardiac electrophysiologist in Jacksonville, FL during 2018 were cardiac procedures, lab tests, stress testing and ultrasound (sonogram).

Volume of procedures performed by Dr. Stephen G. Keim, MD for Medicare patients.

ablation	116
ambulatory monitoring	59
cardiac procedures	1179
cardioversion	60
catheterization	58
diagnostic procedures	58
doctor visit	2584
hospital care	422
implant surgery	72
implantable cardioverter-defibrillator (ICD) replacement	62
inpatient care	387
lab tests	675
minimally invasive procedures	228
nuclear scan	255
outpatient care	35
stress testing	596
ultrasound (sonogram)	448
vascular procedures	54

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Stephen G. Keim, MD.

**Gender**
Male	1738
Female	1436

**Ethnicity**
Non-Hispanic White	2689
Black	405
Hispanic	25
Asian	0
Other	43
Native American	0

**Age**
From 65 to 74	1138
From 75 to 84	1189
85 and over	549
Less than 65	298

Conditions of Medicare patients treated by Dr. Stephen G. Keim, MD in 2018

Hypertension	75
High Cholesterol	75
Stroke	13
Ischemic Heart Disease	59
Depression	21
Chronic Kidney Disease	48
Asthma	7
Osteoperosis	7
Atrial Fibrilation	44
Heart Failure	38
Chronic Obstructive Pulmonary Disease	23
Diabetes	42
Dementia	15
Cancer	12

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Stephen G. Keim, MD treated as a cardiac electrophysiologist in Jacksonville, FL during 2019 were cardiac procedures, stress testing, lab tests and ultrasound (sonogram).

Volume of procedures performed by Dr. Stephen G. Keim, MD for Medicare patients.

ablation	36
ambulatory monitoring	51
cardiac procedures	1645
cardioversion	27
catheterization	18
chronic care	202
diagnostic procedures	18
doctor visit	1704
hospital care	204
implant surgery	69
implantable cardioverter-defibrillator (ICD) replacement	21
inpatient care	204
lab tests	751
minimally invasive procedures	121
nuclear scan	452
stress testing	994
ultrasound (sonogram)	600
vascular procedures	104

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Stephen G. Keim, MD.

**Gender**
Male	1605
Female	1317

**Ethnicity**
Non-Hispanic White	2530
Black	316
Hispanic	0
Asian	0
Other	54
Native American	0

**Age**
From 65 to 74	1116
From 75 to 84	1153
85 and over	451
Less than 65	202

Conditions of Medicare patients treated by Dr. Stephen G. Keim, MD in 2019

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	59
Depression	22
Chronic Kidney Disease	47
Asthma	7
Osteoperosis	7
Atrial Fibrilation	41
Heart Failure	35
Chronic Obstructive Pulmonary Disease	21
Diabetes	40
Dementia	13
Cancer	12

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Stephen G. Keim, MD treated as a cardiac electrophysiologist in Jacksonville, FL during 2020 were cardiac procedures, lab tests, ultrasound (sonogram) and stress testing.

Volume of procedures performed by Dr. Stephen G. Keim, MD for Medicare patients.

ablation	124
ambulatory monitoring	14
cardiac procedures	1922
cardioversion	54
catheterization	62
diagnostic procedures	62
doctor visit	1455
hospital care	207
implant surgery	44
implantable cardioverter-defibrillator (ICD) replacement	47
inpatient care	166
lab tests	1090
minimally invasive procedures	209
nuclear scan	460
outpatient care	41
stress testing	944
ultrasound (sonogram)	992
vascular procedures	157

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Stephen G. Keim, MD.

**Gender**
Male	1682
Female	1359

**Ethnicity**
Non-Hispanic White	2593
Black	371
Hispanic	0
Asian	0
Other	49
Native American	0

**Age**
From 65 to 74	1150
From 75 to 84	1219
85 and over	471
Less than 65	201

Conditions of Medicare patients treated by Dr. Stephen G. Keim, MD in 2020

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	61
Depression	23
Chronic Kidney Disease	52
Asthma	7
Osteoperosis	8
Atrial Fibrilation	38
Heart Failure	37
Chronic Obstructive Pulmonary Disease	21
Diabetes	41
Dementia	15
Cancer	13

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Stephen G. Keim, MD treated as a cardiac electrophysiologist in Jacksonville, FL during 2021 were cardiac procedures, stress testing, lab tests and ultrasound (sonogram).

Volume of procedures performed by Dr. Stephen G. Keim, MD for Medicare patients.

ablation	112
cardiac procedures	2159
cardioversion	69
catheterization	56
diagnostic procedures	56
doctor visit	1682
hospital care	186
implant surgery	66
implantable cardioverter-defibrillator (ICD) replacement	23
inpatient care	171
lab tests	1152
minimally invasive procedures	216
nuclear scan	654
outpatient care	15
stress testing	1329
ultrasound (sonogram)	770
vascular procedures	75

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Stephen G. Keim, MD.

**Gender**
Male	1591
Female	1339

**Ethnicity**
Non-Hispanic White	2467
Black	365
Hispanic	20
Asian	0
Other	66
Native American	0

**Age**
From 65 to 74	1161
From 75 to 84	1124
85 and over	430
Less than 65	215

Conditions of Medicare patients treated by Dr. Stephen G. Keim, MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	12
Ischemic Heart Disease	61
Depression	20
Chronic Kidney Disease	49
Asthma	7
Osteoperosis	9
Atrial Fibrilation	39
Heart Failure	34
Chronic Obstructive Pulmonary Disease	19
Diabetes	39
Dementia	12
Cancer	12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Stephen G. Keim, MD treated as a cardiac electrophysiologist in Jacksonville, FL during 2022 were hospital care, inpatient care, cardioversion and minimally invasive procedures.

Volume of procedures performed by Dr. Stephen G. Keim, MD for Medicare patients.

cardiac procedures	13
cardioversion	33
doctor visit	186
hospital care	157
implant surgery	13
inpatient care	157
minimally invasive procedures	13

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Stephen G. Keim, MD.

**Gender**
Male	1117
Female	1118

**Ethnicity**
Non-Hispanic White	1468
Black	625
Hispanic	67
Asian	0
Other	47
Native American	0

**Age**
From 65 to 74	906
From 75 to 84	748
85 and over	249
Less than 65	332

Conditions of Medicare patients treated by Dr. Stephen G. Keim, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	16
Ischemic Heart Disease	58
Depression	32
Chronic Kidney Disease	41
Asthma	15
Osteoperosis	13
Atrial Fibrilation	38
Heart Failure	48
Chronic Obstructive Pulmonary Disease	30
Diabetes	46
Dementia	13
Cancer	18

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Stephen G. Keim, MD for Medicare patients.

The highest averages for the top procedures that Dr. Stephen G. Keim, MD treated as a cardiac electrophysiologist in Jacksonville, FL were cardiac procedures, stress testing, lab tests and ultrasound (sonogram).

abdominal imaging	11
ablation	109
ambulatory monitoring	38
cardiac procedures	1629
cardioversion	55
catheterization	54
chronic care	202
device removal	12
diagnostic procedures	59
doctor visit	2474
hospital care	375
implant surgery	97
implantable cardioverter-defibrillator (ICD) replacement	66
inpatient care	352
lab tests	1009
minimally invasive procedures	221
nuclear scan	495
outpatient care	28
pelvic imaging	11
stress testing	1101
ultrasound (sonogram)	572
vascular procedures	102

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Stephen G. Keim, MD.

**Gender**
Male	1739
Female	1498

**Ethnicity**
Black / African American	429
Asian / Pacific Islander	1
Non-Hispanic White	2726
Hispanic	21
Native American / Alaskan Native	0
Other	37

**Age**
75 to 84	1206
85 and over	488
Less than 65	300
65 to 74	1241

Average of Total of Conditions of Medicare patients treated by Dr. Stephen G. Keim, MD From 2012 - 2022

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

Hypertension	68
High Cholesterol	67
Stroke	10
Ischemic Heart Disease	55
Depression	19
Chronic Kidney Disease	39
Asthma	9
Osteoporosis	6
Heart Failure	35
Chronic Obstructive Pulmonary Disease	20
Diabetes	37
Atrial Fibrillation	35
Cancer	11
Dementia	12

Education & Training

Dr. Stephen G. Keim, MD graduated from Washington University in St. Louis School of Medicine. He completed residency at Barnes-Jewish Hospital. He is certified by the Internal Medicine - American Board of Internal Medicine and has a state license in Maryland.

Medical School: Washington University in St. Louis School of Medicine

Residency: Barnes-Jewish Hospital (1985)

Board Certification: Internal Medicine - American Board of Internal Medicine

Licensed In: Maryland

Affiliations & Hospitals

Dr. Stephen G. Keim, MD is associated with these hospitals and organizations:

UF Health Jacksonville

UNIVERSITY OF FLORIDA JACKSONVILLE PHYSICIANS, INC

Ratings & Reviews

Dr. Stephen G. Keim, MD has an exceptional overall rating with an average of 4.9 out of 5 stars based on 362 ratings. We collect ratings and reviews of Dr. Stephen G. Keim, MD from all over the web to help you find the right in Jacksonville, FL.

4.9

Overall Rating

(362 Ratings)

Leave a Review

Reviews From Around The Web

Overall Rating: 5.0 2023-07-08

Patient verified via Press Ganey

A great first visit considering my longitudinal care of 13 years went much faster than I suspected it would. I was Immediately put at ease, and I rapidly developed trust in his capabilities to guide me through a long and complex disease process.

Overall Rating: 5.0 2025-02-01

Patient verified via Press Ganey

I have been having heart issues for 19 years, Dr Kiem is the best ever! He took the time to hey to know me & total cardiac history, finally feel like we are headed in the right direction. Going forward I will only see him!!

Overall Rating: 5.0 2024-06-13

Patient verified via Press Ganey

I was treated like like I was the only patient in the world. Very caring.

Overall Rating: 5.0 2025-05-11

Patient verified via Press Ganey

Explained my condition in detail we were able to understand super

Overall Rating: 5.0 2025-06-17

Patient verified via Press Ganey

He is a wonderful friend ... And I owe him my life.

Overall Rating: 4.0 2023-10-20

Patient verified via Press Ganey

I wish that my initial question had been anwsered

Overall Rating: 5.0 2024-11-08

Patient verified via Press Ganey

Very professional

Overall Rating: 5.0 2025-05-28

Patient verified via Press Ganey

Great listen

Overall Rating: 5.0 2024-09-27

Patient verified via Press Ganey

Excellent

Overall Rating: 5.0 2023-07-01

Patient verified via Press Ganey

Good

General Payments

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

**Payments by Company**
Medtronic Vascular, Inc.	$59,768 Implantable Cardioverter Defibrillators - ICDs $11,697	Cardiac Resynchronization Therapy - CRT $5,057	Cardiac Diagnostics and Monitoring $4,035	Ablation $3,998	Arctic Front $3,966	Other $31,015
Amgen Inc.	$12,580 Repatha $7,019	Corlanor $5,551	$11
Boston Scientific Corporation	$5,066 WATCHMAN $2,373	Brady Generator $1,406	TACHY LEAD $968	Tachy System $164	TACHY HF $100	Other $55
SANOFI-AVENTIS U.S. LLC	$3,642 MULTAQ $3,615	PRALUENT $27
Medtronic, Inc.	$3,567 Cobalt $110	CoreValve Evolut $68	Arctic Front $22	Micra $12	$3,354
Other	$7,954 Electrophysiology $1,938	LifeVest $1,811	HeartMate PHP $1,348	XARELTO $464	ELIQUIS $371	Other $2,022

**Types of Payments**
Travel and Lodging	$33,719
Consulting Fee	$23,634
Food and Beverage	$21,610
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$13,600
Education	$14

Research Payments

Dr. Stephen G. Keim, MD has received 207 research payments totaling $450,006.

Biography

Dr. Stephen Keim is an adult cardiology and cardiac electrophysiology (heart rhythm) specialist. The average patient rating for Dr. Keim is 5.0 stars (out of 5). Dr. Keim's clinical interests encompass electrocardiogram (EKG). He graduated from Washington University in St. Louis School of Medicine. He trained at Barnes-Jewish Hospital and National Institutes of Health (NIH) for residency. He is professionally affiliated with UF Health Jacksonville. Dr. Keim's practice in Jacksonville, FL is open to new patients as reported by Doctor.com.