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Dr. John Coulter Maddox, MD

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Specializes in: Pathology

500 J Clyde Morris Boulevard
Newport News, VA 23601

(757) 594-2160

Dr. John Coulter Maddox, MD is a pathologist in Newport News, VA specializing in pathology.

Office Locations

500 J Clyde Morris Boulevard
Newport News, VA 23601

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In The News

“Dr. John Maddox, the retired former head of the Riverside Regional Medical Center's pathology department, drew this image of James Katcham's lungs during an 11-day jury trial in Newport News...”—"Newport News jury awards $3.45M to family in asbestos-related death of factory worker", The Virginian-Pilot, October 2024

“One Newport News doctor, John C. Maddox, testified at the trial that he has seen about 500 mesothelioma patients in his practice at Riverside Regional Medical Center.”—"NN JURY GIVES RECORD $10M IN ASBESTOS SUIT", The Virginian-Pilot, July 2006

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. John Coulter Maddox, MD treated as a pathologist in Newport News, VA during 2012 were lab tests, diagnostic procedures, bone marrow tests and second opinions.

Volume of procedures performed by Dr. John Coulter Maddox, MD for Medicare patients.

bone marrow tests	51
diagnostic procedures	51
lab tests	1245
second opinions	19

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. John Coulter Maddox, MD treated as a pathologist in Newport News, VA during 2013 were lab tests, diagnostic procedures and bone marrow tests.

Volume of procedures performed by Dr. John Coulter Maddox, MD for Medicare patients.

bone marrow tests	57
diagnostic procedures	57
lab tests	1294

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. John Coulter Maddox, MD.

**Gender**
Male	162
Female	168

**Ethnicity**
Non-Hispanic White	228
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	111
From 75 to 84	119
85 and over	47
Less than 65	53

Conditions of Medicare patients treated by Dr. John Coulter Maddox, MD in 2013

Hypertension	75
High Cholesterol	61
Stroke	8
Ischemic Heart Disease	42
Depression	26
Chronic Kidney Disease	50
Asthma	10
Osteoperosis	8
Atrial Fibrilation	22
Heart Failure	38
Chronic Obstructive Pulmonary Disease	23
Diabetes	43
Dementia	19
Cancer	19

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. John Coulter Maddox, MD treated as a pathologist in Newport News, VA during 2014 were lab tests, diagnostic procedures and bone marrow tests.

Volume of procedures performed by Dr. John Coulter Maddox, MD for Medicare patients.

bone marrow tests	55
diagnostic procedures	55
lab tests	1272

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. John Coulter Maddox, MD.

**Gender**
Male	167
Female	172

**Ethnicity**
Non-Hispanic White	257
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	128
From 75 to 84	114
85 and over	57
Less than 65	40

Conditions of Medicare patients treated by Dr. John Coulter Maddox, MD in 2014

Hypertension	75
High Cholesterol	61
Stroke	13
Ischemic Heart Disease	41
Depression	29
Chronic Kidney Disease	57
Asthma	11
Osteoperosis	7
Atrial Fibrilation	19
Heart Failure	36
Chronic Obstructive Pulmonary Disease	27
Diabetes	41
Dementia	19
Cancer	22

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. John Coulter Maddox, MD treated as a pathologist in Newport News, VA during 2015 were lab tests, diagnostic procedures and bone marrow tests.

Volume of procedures performed by Dr. John Coulter Maddox, MD for Medicare patients.

bone marrow tests	45
diagnostic procedures	45
lab tests	709

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. John Coulter Maddox, MD.

**Gender**
Male	242
Female	194

**Ethnicity**
Non-Hispanic White	324
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	168
From 75 to 84	168
85 and over	56
Less than 65	44

Conditions of Medicare patients treated by Dr. John Coulter Maddox, MD in 2015

Hypertension	75
High Cholesterol	62
Stroke	8
Ischemic Heart Disease	48
Depression	27
Chronic Kidney Disease	50
Asthma	17
Osteoperosis	11
Atrial Fibrilation	20
Heart Failure	40
Chronic Obstructive Pulmonary Disease	24
Diabetes	41
Dementia	16
Cancer	23

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. John Coulter Maddox, MD treated as a pathologist in Newport News, VA during 2016 were lab tests, diagnostic procedures and bone marrow tests.

Volume of procedures performed by Dr. John Coulter Maddox, MD for Medicare patients.

bone marrow tests	57
diagnostic procedures	57
lab tests	534

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. John Coulter Maddox, MD.

**Gender**
Male	86
Female	99

**Ethnicity**
Non-Hispanic White	139
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	63
From 75 to 84	65
85 and over	34
Less than 65	23

Conditions of Medicare patients treated by Dr. John Coulter Maddox, MD in 2016

Hypertension	75
High Cholesterol	63
Stroke	12
Ischemic Heart Disease	49
Depression	25
Chronic Kidney Disease	65
Asthma	36
Osteoperosis	11
Atrial Fibrilation	23
Heart Failure	46
Chronic Obstructive Pulmonary Disease	32
Diabetes	44
Dementia	28
Cancer	21

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. John Coulter Maddox, MD treated as a pathologist in Newport News, VA during 2017 were lab tests, diagnostic procedures and bone marrow tests.

Volume of procedures performed by Dr. John Coulter Maddox, MD for Medicare patients.

bone marrow tests	50
diagnostic procedures	50
lab tests	560

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. John Coulter Maddox, MD.

**Gender**
Male	129
Female	115

**Ethnicity**
Non-Hispanic White	180
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	89
From 75 to 84	86
85 and over	32
Less than 65	37

Conditions of Medicare patients treated by Dr. John Coulter Maddox, MD in 2017

Hypertension	75
High Cholesterol	57
Stroke	12
Ischemic Heart Disease	51
Depression	31
Chronic Kidney Disease	63
Asthma	12
Osteoperosis	12
Atrial Fibrilation	21
Heart Failure	45
Chronic Obstructive Pulmonary Disease	31
Diabetes	39
Dementia	25
Cancer	22

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. John Coulter Maddox, MD treated as a pathologist in Newport News, VA during 2018 were lab tests.

Volume of procedures performed by Dr. John Coulter Maddox, MD for Medicare patients.

lab tests	525

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. John Coulter Maddox, MD.

**Gender**
Male	134
Female	149

**Ethnicity**
Non-Hispanic White	192
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	90
From 75 to 84	89
85 and over	59
Less than 65	45

Conditions of Medicare patients treated by Dr. John Coulter Maddox, MD in 2018

Hypertension	75
High Cholesterol	67
Stroke	13
Ischemic Heart Disease	52
Depression	38
Chronic Kidney Disease	68
Asthma	10
Osteoperosis	12
Atrial Fibrilation	23
Heart Failure	44
Chronic Obstructive Pulmonary Disease	29
Diabetes	41
Dementia	31
Cancer	18

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. John Coulter Maddox, MD treated as a pathologist in Newport News, VA during 2019 were lab tests.

Volume of procedures performed by Dr. John Coulter Maddox, MD for Medicare patients.

lab tests	436

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. John Coulter Maddox, MD.

**Gender**
Male	175
Female	201

**Ethnicity**
Non-Hispanic White	253
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	142
From 75 to 84	115
85 and over	60
Less than 65	59

Conditions of Medicare patients treated by Dr. John Coulter Maddox, MD in 2019

Hypertension	75
High Cholesterol	72
Stroke	13
Ischemic Heart Disease	46
Depression	32
Chronic Kidney Disease	65
Asthma	11
Osteoperosis	9
Atrial Fibrilation	22
Heart Failure	41
Chronic Obstructive Pulmonary Disease	28
Diabetes	42
Dementia	26
Cancer	15

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2019

Volume of procedures performed by Dr. John Coulter Maddox, MD for Medicare patients.

The highest averages for the top procedures that Dr. John Coulter Maddox, MD treated as a pathologist in Newport News, VA were lab tests, diagnostic procedures, bone marrow tests and second opinions.

bone marrow tests	52
diagnostic procedures	52
lab tests	821
second opinions	19

Average Medicare Patient Data From 2012 - 2019

Information about Medicare patients treated by Dr. John Coulter Maddox, MD.

**Gender**
Male	136
Female	137

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	196
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	94
85 and over	43
Less than 65	37
65 to 74	98

Average of Total of Conditions of Medicare patients treated by Dr. John Coulter Maddox, MD From 2012 - 2019

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

Hypertension	65
High Cholesterol	55
Stroke	9
Ischemic Heart Disease	41
Depression	26
Chronic Kidney Disease	52
Asthma	13
Osteoporosis	8
Heart Failure	36
Chronic Obstructive Pulmonary Disease	24
Diabetes	36
Atrial Fibrillation	18
Dementia	20
Cancer	17

Education & Training

He has a state license in Virginia.

Licensed In: Virginia

Ratings & Reviews

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General Payments

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

**Payments by Company**
Seattle Genetics, Inc.	$133 SGN35 $105	ADCETRIS $28
Celgene Corporation	$93 Revlimid $93
Genentech USA, Inc.	$47 $47
Roche Diagnostics Corporation	$36 RTD - Digital Pathology and Workflow $19	RTD - Advanced Staining - instruments-assays $17
Merck Sharp & Dohme Corporation	$16 KEYTRUDA $16
Other	$14 Zoom Lamps $14

**Types of Payments**
Food and Beverage	$339

Biography

Dr. John Maddox works as a pathology specialist in Newport News, VA. Dr. Maddox has obtained a license to practice in Virginia.

Select Year:

Dr. John Coulter Maddox, MD

Office Locations

In The News

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. John Coulter Maddox, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Coulter Maddox, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Coulter Maddox, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Coulter Maddox, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Coulter Maddox, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Coulter Maddox, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John Coulter Maddox, MD in 2019

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2019

Average Medicare Patient Data From 2012 - 2019

Average of Total of Conditions of Medicare patients treated by Dr. John Coulter Maddox, MD From 2012 - 2019

Education & Training

Ratings & Reviews

General Payments

Biography

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