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Home > DE Providers

Dr. Edwin Mark Johnson, MD

Accepting New Patients

(341 Ratings)

Specializes in: Adult Cardiology

MCP Hahnemann School of Medicine (1984)

802 N Dupont Boulevard
Milford, DE 19963

(302) 422-6050

Dr. Edwin Mark Johnson, MD is a cardiologist in Milford, DE specializing in adult cardiology. He graduated from MCP Hahnemann School of Medicine in 1984 and has 42 years of experience. Dr. Edwin Mark Johnson, MD is affiliated with Bayhealth.

Office Locations

802 N Dupont Boulevard
Milford, DE 19963

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Noteworthy Medicare Patient Procedures Performed by Dr. Edwin Mark Johnson, MD in 2023

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

Top 5%

By Affordability:

cardiac imaging

color Doppler echocardiography

Doppler echocardiography

echocardiogram

spectral Doppler echocardiography

transthoracic echocardiography

In 2023, Dr. Edwin Mark Johnson, MD had a list price for cardiac imaging, color Doppler echocardiography, Doppler echocardiography, echocardiogram (echo), spectral Doppler echocardiography, and transthoracic echocardiography (TTE) that was lower than the list prices billed to Medicare by 95% of providers in related specialties within Delaware. 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 Affordability:

cardiac stress testing

hospital care

inpatient care

inpatient hospital care

stress testing

In 2023, Dr. Edwin Mark Johnson, MD had a list price for cardiac (heart) stress testing, hospital care, inpatient care, inpatient hospital care (for patient admitted to hospital), and stress testing that was lower than the list prices billed to Medicare by 90% of providers in related specialties within Delaware. 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 Affordability:

electrocardiogram

stress EKG

In 2012, Dr. Edwin Mark Johnson, MD had a list price for electrocardiogram (EKG), and stress EKG that was lower than the list prices billed to Medicare by 75% of providers in related specialties within Delaware. 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. Edwin Mark Johnson, MD treated as a cardiologist in Milford, DE during 2012 were lab tests, hospital care, inpatient care and cardiac procedures.

Volume of procedures performed by Dr. Edwin Mark Johnson, MD for Medicare patients.

cardiac procedures	781
doctor visit	2011
hospital care	1120
inpatient care	1093
lab tests	1630
outpatient care	27
stress testing	192
ultrasound (sonogram)	589

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Edwin Mark Johnson, MD treated as a cardiologist in Milford, DE during 2013 were lab tests, hospital care, inpatient care and cardiac procedures.

Volume of procedures performed by Dr. Edwin Mark Johnson, MD for Medicare patients.

cardiac procedures	647
doctor visit	2181
hospital care	1062
inpatient care	1039
lab tests	1612
outpatient care	23
stress testing	211
ultrasound (sonogram)	436

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Edwin Mark Johnson, MD.

**Gender**
Male	1203
Female	1107

**Ethnicity**
Non-Hispanic White	1988
Black	263
Hispanic	35
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	866
From 75 to 84	807
85 and over	391
Less than 65	246

Conditions of Medicare patients treated by Dr. Edwin Mark Johnson, MD in 2013

Hypertension	75
High Cholesterol	75
Stroke	12
Ischemic Heart Disease	63
Depression	18
Chronic Kidney Disease	35
Asthma	8
Osteoperosis	6
Atrial Fibrilation	31
Heart Failure	37
Chronic Obstructive Pulmonary Disease	27
Diabetes	45
Dementia	14
Cancer	12

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Edwin Mark Johnson, MD treated as a cardiologist in Milford, DE during 2014 were lab tests, hospital care, inpatient care and cardiac procedures.

Volume of procedures performed by Dr. Edwin Mark Johnson, MD for Medicare patients.

cardiac procedures	667
doctor visit	2200
hospital care	918
inpatient care	918
lab tests	1513
stress testing	173
ultrasound (sonogram)	494

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Edwin Mark Johnson, MD.

**Gender**
Male	1126
Female	1095

**Ethnicity**
Non-Hispanic White	1924
Black	230
Hispanic	40
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	856
From 75 to 84	772
85 and over	353
Less than 65	240

Conditions of Medicare patients treated by Dr. Edwin Mark Johnson, MD in 2014

Hypertension	75
High Cholesterol	75
Stroke	12
Ischemic Heart Disease	61
Depression	20
Chronic Kidney Disease	33
Asthma	8
Osteoperosis	6
Atrial Fibrilation	31
Heart Failure	33
Chronic Obstructive Pulmonary Disease	27
Diabetes	45
Dementia	15
Cancer	13

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Edwin Mark Johnson, MD treated as a cardiologist in Milford, DE during 2015 were lab tests, hospital care, inpatient care and cardiac procedures.

Volume of procedures performed by Dr. Edwin Mark Johnson, MD for Medicare patients.

cardiac procedures	669
doctor visit	2206
hospital care	841
inpatient care	841
lab tests	1280
stress testing	179
ultrasound (sonogram)	490

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Edwin Mark Johnson, MD.

**Gender**
Male	2314
Female	2232

**Ethnicity**
Non-Hispanic White	3898
Black	498
Hispanic	94
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	1718
From 75 to 84	1588
85 and over	692
Less than 65	548

Conditions of Medicare patients treated by Dr. Edwin Mark Johnson, MD in 2015

Hypertension	75
High Cholesterol	75
Stroke	13
Ischemic Heart Disease	59
Depression	21
Chronic Kidney Disease	38
Asthma	15
Osteoperosis	7
Atrial Fibrilation	30
Heart Failure	32
Chronic Obstructive Pulmonary Disease	26
Diabetes	45
Dementia	15
Cancer	12

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Edwin Mark Johnson, MD treated as a cardiologist in Milford, DE during 2016 were lab tests, hospital care, inpatient care and cardiac procedures.

Volume of procedures performed by Dr. Edwin Mark Johnson, MD for Medicare patients.

cardiac procedures	616
doctor visit	1959
hospital care	628
inpatient care	628
lab tests	1060
stress testing	161
ultrasound (sonogram)	455

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Edwin Mark Johnson, MD.

**Gender**
Male	1152
Female	1117

**Ethnicity**
Non-Hispanic White	1952
Black	252
Hispanic	35
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	887
From 75 to 84	777
85 and over	330
Less than 65	275

Conditions of Medicare patients treated by Dr. Edwin Mark Johnson, MD in 2016

Hypertension	75
High Cholesterol	75
Stroke	12
Ischemic Heart Disease	58
Depression	23
Chronic Kidney Disease	42
Asthma	27
Osteoperosis	7
Atrial Fibrilation	27
Heart Failure	31
Chronic Obstructive Pulmonary Disease	25
Diabetes	45
Dementia	15
Cancer	12

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Edwin Mark Johnson, MD treated as a cardiologist in Milford, DE during 2017 were lab tests, cardiac procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Edwin Mark Johnson, MD for Medicare patients.

cardiac procedures	613
doctor visit	1801
hospital care	594
inpatient care	594
lab tests	1275
stress testing	186
ultrasound (sonogram)	427

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Edwin Mark Johnson, MD.

**Gender**
Male	1100
Female	1085

**Ethnicity**
Non-Hispanic White	1850
Black	263
Hispanic	36
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	837
From 75 to 84	748
85 and over	334
Less than 65	266

Conditions of Medicare patients treated by Dr. Edwin Mark Johnson, MD in 2017

Hypertension	75
High Cholesterol	68
Stroke	13
Ischemic Heart Disease	57
Depression	24
Chronic Kidney Disease	44
Asthma	8
Osteoperosis	8
Atrial Fibrilation	28
Heart Failure	31
Chronic Obstructive Pulmonary Disease	27
Diabetes	45
Dementia	16
Cancer	13

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Edwin Mark Johnson, MD treated as a cardiologist in Milford, DE during 2018 were lab tests, cardiac procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Edwin Mark Johnson, MD for Medicare patients.

cardiac procedures	706
doctor visit	1918
hospital care	557
inpatient care	557
lab tests	1176
stress testing	205
ultrasound (sonogram)	501

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Edwin Mark Johnson, MD.

**Gender**
Male	1178
Female	1101

**Ethnicity**
Non-Hispanic White	1912
Black	284
Hispanic	43
Asian	0
Other	28
Native American	0

**Age**
From 65 to 74	837
From 75 to 84	771
85 and over	358
Less than 65	313

Conditions of Medicare patients treated by Dr. Edwin Mark Johnson, MD in 2018

Hypertension	75
High Cholesterol	75
Stroke	12
Ischemic Heart Disease	55
Depression	24
Chronic Kidney Disease	48
Asthma	7
Osteoperosis	7
Atrial Fibrilation	27
Heart Failure	32
Chronic Obstructive Pulmonary Disease	27
Diabetes	44
Dementia	16
Cancer	13

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Edwin Mark Johnson, MD treated as a cardiologist in Milford, DE during 2019 were cardiac procedures, hospital care, inpatient care and ultrasound (sonogram).

Volume of procedures performed by Dr. Edwin Mark Johnson, MD for Medicare patients.

cardiac procedures	653
doctor visit	1846
hospital care	475
inpatient care	475
lab tests	379
stress testing	194
ultrasound (sonogram)	459

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Edwin Mark Johnson, MD.

**Gender**
Male	1117
Female	1103

**Ethnicity**
Non-Hispanic White	1893
Black	252
Hispanic	33
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	875
From 75 to 84	743
85 and over	350
Less than 65	252

Conditions of Medicare patients treated by Dr. Edwin Mark Johnson, MD in 2019

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	55
Depression	25
Chronic Kidney Disease	48
Asthma	7
Osteoperosis	9
Atrial Fibrilation	29
Heart Failure	32
Chronic Obstructive Pulmonary Disease	26
Diabetes	44
Dementia	16
Cancer	13

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Edwin Mark Johnson, MD treated as a cardiologist in Milford, DE during 2020 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Edwin Mark Johnson, MD for Medicare patients.

cardiac procedures	504
doctor visit	1423
hospital care	343
inpatient care	343
stress testing	134
ultrasound (sonogram)	370

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Edwin Mark Johnson, MD.

**Gender**
Male	950
Female	854

**Ethnicity**
Non-Hispanic White	1544
Black	195
Hispanic	24
Asian	15
Other	26
Native American	0

**Age**
From 65 to 74	696
From 75 to 84	652
85 and over	288
Less than 65	168

Conditions of Medicare patients treated by Dr. Edwin Mark Johnson, MD in 2020

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	56
Depression	27
Chronic Kidney Disease	50
Asthma	6
Osteoperosis	6
Atrial Fibrilation	27
Heart Failure	34
Chronic Obstructive Pulmonary Disease	25
Diabetes	44
Dementia	16
Cancer	14

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Edwin Mark Johnson, MD treated as a cardiologist in Milford, DE during 2021 were cardiac procedures, ultrasound (sonogram), hospital care and inpatient care.

Volume of procedures performed by Dr. Edwin Mark Johnson, MD for Medicare patients.

cardiac procedures	557
doctor visit	1593
hospital care	378
inpatient care	378
stress testing	137
ultrasound (sonogram)	420

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Edwin Mark Johnson, MD.

**Gender**
Male	970
Female	925

**Ethnicity**
Non-Hispanic White	1634
Black	196
Hispanic	28
Asian	0
Other	25
Native American	0

**Age**
From 65 to 74	751
From 75 to 84	678
85 and over	309
Less than 65	157

Conditions of Medicare patients treated by Dr. Edwin Mark Johnson, MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	10
Ischemic Heart Disease	56
Depression	28
Chronic Kidney Disease	48
Asthma	7
Osteoperosis	10
Atrial Fibrilation	28
Heart Failure	33
Chronic Obstructive Pulmonary Disease	24
Diabetes	41
Dementia	14
Cancer	14

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Edwin Mark Johnson, MD treated as a cardiologist in Milford, DE during 2022 were ultrasound (sonogram), cardiac procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Edwin Mark Johnson, MD for Medicare patients.

cardiac procedures	437
doctor visit	1556
hospital care	286
inpatient care	286
ultrasound (sonogram)	437

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Edwin Mark Johnson, MD.

**Gender**
Male	978
Female	981

**Ethnicity**
Non-Hispanic White	1710
Black	171
Hispanic	35
Asian	0
Other	30
Native American	0

**Age**
From 65 to 74	746
From 75 to 84	776
85 and over	307
Less than 65	130

Conditions of Medicare patients treated by Dr. Edwin Mark Johnson, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	14
Ischemic Heart Disease	47
Depression	26
Chronic Kidney Disease	36
Asthma	9
Osteoperosis	13
Atrial Fibrilation	35
Heart Failure	31
Chronic Obstructive Pulmonary Disease	28
Diabetes	40
Dementia	11
Cancer	18

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Edwin Mark Johnson, MD for Medicare patients.

The highest averages for the top procedures that Dr. Edwin Mark Johnson, MD treated as a cardiologist in Milford, DE were lab tests, hospital care, inpatient care and cardiac procedures.

cardiac procedures	622
doctor visit	1881
hospital care	654
inpatient care	650
lab tests	1240
outpatient care	25
stress testing	177
ultrasound (sonogram)	461

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Edwin Mark Johnson, MD.

**Gender**
Male	1098
Female	1054

**Ethnicity**
Black / African American	236
Asian / Pacific Islander	1
Non-Hispanic White	1845
Native American / Alaskan Native	0
Hispanic	36
Other	9

**Age**
75 to 84	755
85 and over	337
Less than 65	235
65 to 74	824

Average of Total of Conditions of Medicare patients treated by Dr. Edwin Mark Johnson, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Edwin Mark Johnson, MD treated were hypertension, high cholesterol, ischemic heart disease and diabetes.

Hypertension	68
High Cholesterol	67
Stroke	10
Ischemic Heart Disease	51
Depression	21
Chronic Kidney Disease	38
Asthma	9
Osteoporosis	7
Heart Failure	29
Chronic Obstructive Pulmonary Disease	23
Diabetes	39
Atrial Fibrillation	26
Dementia	13
Cancer	12

Education & Training

Dr. Edwin Mark Johnson, MD graduated from MCP Hahnemann School of Medicine in 1984. He completed residency at Hahnemann University Hospital. He is certified by the American Board of Internal Medicine American Board of Internal Medicine/Cardiovascular Disease and has a state license in Delaware.

Medical School: MCP Hahnemann School of Medicine (1984)

Residency: Hahnemann University Hospital

Board Certification: American Board of Internal Medicine American Board of Internal Medicine/Cardiovascular Disease

Licensed In: Delaware

Affiliations & Hospitals

Dr. Edwin Mark Johnson, MD is associated with these hospitals and organizations:

Bayhealth

Ratings & Reviews

Dr. Edwin Mark Johnson, MD has an exceptional overall rating with an average of 4.91 out of 5 stars based on 341 ratings. We collect ratings and reviews of Dr. Edwin Mark Johnson, MD from all over the web to help you find the right in Milford, DE.

4.91

Overall Rating

(341 Ratings)

Leave a Review

Reviews From Around The Web

Overall Rating: 5.0 2025-06-19

Patient verified via Press Ganey

I am very satisfied as a patient

Overall Rating: 5.0 2025-08-19

Patient verified via Press Ganey

Dr. Johnson is the best!

Overall Rating: 5.0 2025-05-08

Patient verified via Press Ganey

Had no bad experience.

Overall Rating: 5.0 2025-05-26

Patient verified via Press Ganey

Dr Johnson is amazing

Overall Rating: 5.0 2025-02-24

Patient verified via Press Ganey

Always good.

Overall Rating: 5.0 2025-11-16

Patient verified via Press Ganey

As before.

Overall Rating: 5.0 2025-11-18

Patient verified via Press Ganey

Good

General Payments

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

**Payments by Company**
Amgen Inc.	$661 Repatha $629	Corlanor $33
Janssen Pharmaceuticals, Inc	$650 XARELTO $609	INVOKANA $33	$8
ZOLL Services LLC (A/K/A ZOLL LifeCor Corp)	$550 LifeVest $550
Pfizer Inc.	$357 ELIQUIS $253	CHANTIX $52	VIAGRA $35	PAXLOVID $17
Novartis Pharmaceuticals Corporation	$344 ENTRESTO $274	LEQVIO $56	NON BRAND $14
Other	$1,845 ELIQUIS $321	PRALUENT $193	Reveal LINQ $140	BRILINTA $123	Pradaxa $105	Other $963

**Types of Payments**
Food and Beverage	$4,393
Education	$14

Biography

Dr. Edwin Johnson is a specialist in adult cardiology. He works in Milford, DE. Patient reviews placed Dr. Johnson at an average of 5.0 stars (out of 5). He obtained his medical school training at MCP Hahnemann School of Medicine and performed his residency at Hahnemann University Hospital and a hospital affiliated with Stony Brook University Medical Center. He is affiliated with Bayhealth. Dr. Johnson welcomes new patients at his office inMilford, DE as reported by Doctor.com.