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Home > GA Providers > Neurosurgeons

Dr. John A. Cowan Jr., MD

Accepting New Patients

(Dr. John Alfred Cowan Jr., M.D.)

(No ratings)

Specializes in: Neurosurgery

Johns Hopkins University School of Medicine

15 John Maddox Drive NW
Rome, GA 30165

(706) 368-8550

Dr. John A. Cowan Jr., MD is a neurosurgeon in Rome, GA specializing in neurosurgery. He graduated from Johns Hopkins University School of Medicine. Dr. John A. Cowan Jr., MD is affiliated with Atrium Health Floyd and ADVENTIST HEALTH SYSTEM GEORGIA INC.

Office Locations

15 John Maddox Drive NW
Rome, GA 30165

open_in_new

110 Hospital Drive
Calhoun, GA 30701

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In The News (see more mentions in the news)

“For now, that leaves a developing GOP field that includes Rob Adkerson, Loudermilk s chief aide and his preferred successor, and Dr. John Cowan, the Rome neurosurgeon who lost a 2020 runoff to...”—"Rick Jackson looks to AI to give his campaign a country-music boost", The Atlanta Journal-Constitution , March 2026

“They could join Dr. John Cowan, the Rome neurosurgeon who finished second to Marjorie Taylor Greene in a 2020 runoff for a neighboring seat.”—"Derek Dooley urges Congress to give NCAA the power to enforce its rules", The Atlanta Journal-Constitution , February 2026

“Dr. John Cowan, a Rome neurosurgeon who was the runner-up to Marjorie Taylor Greene in a 2020 GOP primary, announced weeks ago and has already drawn early endorsements.”—"Open U.S. House race heats up as Loudermilk aide launches bid", The Atlanta Journal-Constitution , February 2026

Noteworthy Medicare Patient Procedures Performed by Dr. John A. Cowan Jr., MD in 2023

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

Top 5%

By Affordability:

neck X-ray

spine MRI

spine X-ray

In 2023, Dr. John A. Cowan Jr., MD had a list price for neck X-ray, spine MRI, and spine X-ray that was lower than the list prices billed to Medicare by 95% of providers in related specialties within Georgia. 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:

X-rays

In 2023, Dr. John A. Cowan Jr., MD had a list price for X-rays that was lower than the list prices billed to Medicare by 90% of providers in related specialties within Georgia. 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:

MRI

In 2013, Dr. John A. Cowan Jr., MD had a list price for MRI (magnetic resonance imaging) that was lower than the list prices billed to Medicare by 75% of providers in related specialties within Georgia. 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

2013 Medicare Procedure Volume

The top procedures that Dr. John A. Cowan Jr., MD treated as a neurosurgeon in Rome, GA during 2013 were spinal procedures, lab tests, nerve procedures and decompression surgery.

Volume of procedures performed by Dr. John A. Cowan Jr., MD for Medicare patients.

arthrodesis (bone fusion surgery)	39
blood draw	36
decompression surgery	64
doctor visit	429
hospital care	25
inpatient care	25
lab tests	68
neck surgery	17
nerve procedures	64
spinal procedures	136

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. John A. Cowan Jr., MD.

**Gender**
Male	185
Female	202

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

**Age**
From 65 to 74	158
From 75 to 84	99
85 and over	35
Less than 65	95

Conditions of Medicare patients treated by Dr. John A. Cowan Jr., MD in 2013

The most common conditions of Medicare patients that Dr. John A. Cowan Jr., MD treated during 2013 were hypertension, high cholesterol, ischemic heart disease and diabetes.

Hypertension	75
High Cholesterol	64
Stroke	9
Ischemic Heart Disease	39
Depression	27
Chronic Kidney Disease	24
Asthma	6
Osteoperosis	9
Atrial Fibrilation	11
Heart Failure	17
Chronic Obstructive Pulmonary Disease	20
Diabetes	34
Dementia	11
Cancer	11

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. John A. Cowan Jr., MD treated as a neurosurgeon in Rome, GA during 2014 were spinal procedures, lab tests, nerve procedures and decompression surgery.

Volume of procedures performed by Dr. John A. Cowan Jr., MD for Medicare patients.

arthrodesis (bone fusion surgery)	34
blood draw	26
decompression surgery	48
doctor visit	296
hospital care	12
inpatient care	12
lab tests	49
neck surgery	16
nerve procedures	48
spinal procedures	95

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. John A. Cowan Jr., MD.

**Gender**
Male	154
Female	171

**Ethnicity**
Non-Hispanic White	309
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	160
From 75 to 84	65
85 and over	28
Less than 65	72

Conditions of Medicare patients treated by Dr. John A. Cowan Jr., MD in 2014

The most common conditions of Medicare patients that Dr. John A. Cowan Jr., MD treated during 2014 were hypertension, high cholesterol, ischemic heart disease and diabetes.

Hypertension	75
High Cholesterol	65
Stroke	8
Ischemic Heart Disease	41
Depression	25
Chronic Kidney Disease	26
Asthma	9
Osteoperosis	9
Atrial Fibrilation	10
Heart Failure	14
Chronic Obstructive Pulmonary Disease	18
Diabetes	34
Dementia	10
Cancer	9

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. John A. Cowan Jr., MD treated as a neurosurgeon in Rome, GA during 2015 were spinal procedures, lab tests, nerve procedures and decompression surgery.

Volume of procedures performed by Dr. John A. Cowan Jr., MD for Medicare patients.

arthrodesis (bone fusion surgery)	26
blood draw	23
decompression surgery	37
doctor visit	317
hospital care	27
inpatient care	27
lab tests	44
neck surgery	26
nerve procedures	37
spinal procedures	81

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. John A. Cowan Jr., MD.

**Gender**
Male	364
Female	340

**Ethnicity**
Non-Hispanic White	658
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	244
From 75 to 84	198
85 and over	60
Less than 65	202

Conditions of Medicare patients treated by Dr. John A. Cowan Jr., MD in 2015

The most common conditions of Medicare patients that Dr. John A. Cowan Jr., MD treated during 2015 were hypertension, high cholesterol, ischemic heart disease and diabetes.

Hypertension	75
High Cholesterol	62
Stroke	11
Ischemic Heart Disease	45
Depression	25
Chronic Kidney Disease	30
Asthma	14
Osteoperosis	6
Atrial Fibrilation	15
Heart Failure	21
Chronic Obstructive Pulmonary Disease	19
Diabetes	34
Dementia	12
Cancer	7

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. John A. Cowan Jr., MD treated as a neurosurgeon in Rome, GA during 2016 were spinal procedures, X-rays, nerve procedures and decompression surgery.

Volume of procedures performed by Dr. John A. Cowan Jr., MD for Medicare patients.

arthrodesis (bone fusion surgery)	33
blood draw	12
decompression surgery	46
doctor visit	282
hospital care	18
inpatient care	18
lab tests	11
MRI (magnetic resonance imaging)	30
neck surgery	20
nerve procedures	46
spinal procedures	182
X-rays	61

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. John A. Cowan Jr., MD.

**Gender**
Male	156
Female	178

**Ethnicity**
Non-Hispanic White	307
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	139
From 75 to 84	94
85 and over	22
Less than 65	79

Conditions of Medicare patients treated by Dr. John A. Cowan Jr., MD in 2016

The most common conditions of Medicare patients that Dr. John A. Cowan Jr., MD treated during 2016 were hypertension, high cholesterol, ischemic heart disease and diabetes.

Hypertension	75
High Cholesterol	68
Stroke	8
Ischemic Heart Disease	46
Depression	33
Chronic Kidney Disease	34
Asthma	25
Osteoperosis	6
Atrial Fibrilation	11
Heart Failure	25
Chronic Obstructive Pulmonary Disease	24
Diabetes	35
Dementia	12
Cancer	10

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. John A. Cowan Jr., MD treated as a neurosurgeon in Rome, GA during 2017 were spinal procedures, X-rays, nerve procedures and decompression surgery.

Volume of procedures performed by Dr. John A. Cowan Jr., MD for Medicare patients.

arthrodesis (bone fusion surgery)	54
blood draw	19
decompression surgery	79
doctor visit	243
hospital care	15
inpatient care	15
lab tests	36
MRI (magnetic resonance imaging)	37
neck surgery	26
nerve procedures	79
spinal procedures	301
X-rays	81

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. John A. Cowan Jr., MD.

**Gender**
Male	167
Female	150

**Ethnicity**
Non-Hispanic White	291
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	129
From 75 to 84	98
85 and over	18
Less than 65	72

Conditions of Medicare patients treated by Dr. John A. Cowan Jr., MD in 2017

The most common conditions of Medicare patients that Dr. John A. Cowan Jr., MD treated during 2017 were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	75
High Cholesterol	68
Stroke	6
Ischemic Heart Disease	42
Depression	33
Chronic Kidney Disease	38
Asthma	7
Osteoperosis	8
Atrial Fibrilation	12
Heart Failure	24
Chronic Obstructive Pulmonary Disease	19
Diabetes	31
Dementia	10
Cancer	6

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. John A. Cowan Jr., MD treated as a neurosurgeon in Rome, GA during 2018 were spinal procedures, X-rays, nerve procedures and decompression surgery.

Volume of procedures performed by Dr. John A. Cowan Jr., MD for Medicare patients.

arthrodesis (bone fusion surgery)	52
blood draw	31
decompression surgery	62
doctor visit	246
lab tests	61
MRI (magnetic resonance imaging)	36
neck surgery	28
nerve procedures	62
spinal procedures	265
X-rays	78

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. John A. Cowan Jr., MD.

**Gender**
Male	155
Female	159

**Ethnicity**
Non-Hispanic White	293
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	135
From 75 to 84	98
85 and over	18
Less than 65	63

Conditions of Medicare patients treated by Dr. John A. Cowan Jr., MD in 2018

The most common conditions of Medicare patients that Dr. John A. Cowan Jr., MD treated during 2018 were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	75
High Cholesterol	72
Stroke	8
Ischemic Heart Disease	38
Depression	30
Chronic Kidney Disease	35
Asthma	6
Osteoperosis	11
Atrial Fibrilation	11
Heart Failure	19
Chronic Obstructive Pulmonary Disease	16
Diabetes	34
Dementia	9
Cancer	9

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. John A. Cowan Jr., MD treated as a neurosurgeon in Rome, GA during 2019 were spinal procedures, X-rays, nerve procedures and decompression surgery.

Volume of procedures performed by Dr. John A. Cowan Jr., MD for Medicare patients.

arthrodesis (bone fusion surgery)	46
blood draw	21
decompression surgery	54
doctor visit	216
lab tests	42
MRI (magnetic resonance imaging)	37
neck surgery	23
nerve procedures	54
spinal procedures	222
X-rays	61

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. John A. Cowan Jr., MD.

**Gender**
Male	128
Female	153

**Ethnicity**
Non-Hispanic White	258
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	121
From 75 to 84	74
85 and over	16
Less than 65	70

Conditions of Medicare patients treated by Dr. John A. Cowan Jr., MD in 2019

The most common conditions of Medicare patients that Dr. John A. Cowan Jr., MD treated during 2019 were hypertension, high cholesterol, chronic kidney disease and diabetes.

Hypertension	75
High Cholesterol	69
Stroke	5
Ischemic Heart Disease	36
Depression	33
Chronic Kidney Disease	37
Asthma	5
Osteoperosis	9
Atrial Fibrilation	9
Heart Failure	24
Chronic Obstructive Pulmonary Disease	19
Diabetes	36
Dementia	11
Cancer	12

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. John A. Cowan Jr., MD treated as a neurosurgeon in Rome, GA during 2020 were spinal procedures, nerve procedures, decompression surgery and lab tests.

Volume of procedures performed by Dr. John A. Cowan Jr., MD for Medicare patients.

arthrodesis (bone fusion surgery)	29
blood draw	20
decompression surgery	51
doctor visit	199
lab tests	44
MRI (magnetic resonance imaging)	13
neck surgery	16
nerve procedures	51
spinal procedures	141
X-rays	36

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. John A. Cowan Jr., MD.

**Gender**
Male	116
Female	112

**Ethnicity**
Non-Hispanic White	210
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	100
From 75 to 84	76
85 and over	14
Less than 65	38

Conditions of Medicare patients treated by Dr. John A. Cowan Jr., MD in 2020

The most common conditions of Medicare patients that Dr. John A. Cowan Jr., MD treated during 2020 were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	75
High Cholesterol	68
Stroke	6
Ischemic Heart Disease	43
Depression	32
Chronic Kidney Disease	40
Asthma	10
Osteoperosis	11
Atrial Fibrilation	11
Heart Failure	25
Chronic Obstructive Pulmonary Disease	18
Diabetes	36
Dementia	15
Cancer	12

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. John A. Cowan Jr., MD treated as a neurosurgeon in Rome, GA during 2021 were spinal procedures, nerve procedures, decompression surgery and X-rays.

Volume of procedures performed by Dr. John A. Cowan Jr., MD for Medicare patients.

arthrodesis (bone fusion surgery)	48
blood draw	21
decompression surgery	71
doctor visit	222
lab tests	42
MRI (magnetic resonance imaging)	40
neck surgery	17
nerve procedures	71
revision surgery	11
spinal procedures	245
X-rays	55

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. John A. Cowan Jr., MD.

**Gender**
Male	114
Female	139

**Ethnicity**
Non-Hispanic White	237
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	115
From 75 to 84	80
85 and over	17
Less than 65	41

Conditions of Medicare patients treated by Dr. John A. Cowan Jr., MD in 2021

The most common conditions of Medicare patients that Dr. John A. Cowan Jr., MD treated during 2021 were high cholesterol, hypertension, ischemic heart disease and diabetes.

Hypertension	75
High Cholesterol	75
Stroke	10
Ischemic Heart Disease	41
Depression	32
Chronic Kidney Disease	38
Asthma	7
Osteoperosis	12
Atrial Fibrilation	11
Heart Failure	27
Chronic Obstructive Pulmonary Disease	17
Diabetes	39
Dementia	16
Cancer	12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. John A. Cowan Jr., MD treated as a neurosurgeon in Rome, GA during 2022 were spinal procedures, X-rays, arthrodesis (bone fusion surgery) and MRI (magnetic resonance imaging).

Volume of procedures performed by Dr. John A. Cowan Jr., MD for Medicare patients.

arthrodesis (bone fusion surgery)	38
decompression surgery	29
doctor visit	205
MRI (magnetic resonance imaging)	33
neck surgery	18
nerve procedures	29
spinal procedures	162
X-rays	54

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. John A. Cowan Jr., MD.

**Gender**
Male	116
Female	112

**Ethnicity**
Non-Hispanic White	216
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	121
From 75 to 84	75
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. John A. Cowan Jr., MD in 2022

The most common conditions of Medicare patients that Dr. John A. Cowan Jr., MD treated during 2022 were high cholesterol, hypertension, ischemic heart disease and diabetes.

Hypertension	75
High Cholesterol	75
Stroke	13
Ischemic Heart Disease	38
Depression	28
Chronic Kidney Disease	24
Asthma	12
Osteoperosis	14
Atrial Fibrilation	19
Heart Failure	25
Chronic Obstructive Pulmonary Disease	22
Diabetes	37
Dementia	6
Cancer	13

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. John A. Cowan Jr., MD treated as a neurosurgeon in Rome, GA during 2023 were spinal procedures, X-rays, arthrodesis (bone fusion surgery) and nerve procedures.

Volume of procedures performed by Dr. John A. Cowan Jr., MD for Medicare patients.

arthrodesis (bone fusion surgery)	30
decompression surgery	12
doctor visit	224
MRI (magnetic resonance imaging)	12
neck surgery	12
nerve procedures	12
spinal procedures	108
X-rays	42

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. John A. Cowan Jr., MD.

**Gender**
Male	130
Female	136

**Ethnicity**
Non-Hispanic White	254
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	126
From 75 to 84	90
85 and over	22
Less than 65	28

Conditions of Medicare patients treated by Dr. John A. Cowan Jr., MD in 2023

The most common conditions of Medicare patients that Dr. John A. Cowan Jr., MD treated during 2023 were high cholesterol, hypertension, ischemic heart disease and diabetes.

Hypertension	75
High Cholesterol	75
Stroke	14
Ischemic Heart Disease	38
Depression	30
Chronic Kidney Disease	31
Asthma	8
Osteoperosis	15
Atrial Fibrilation	20
Heart Failure	26
Chronic Obstructive Pulmonary Disease	21
Diabetes	34
Dementia	7
Cancer	14

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2013 - 2023

Volume of procedures performed by Dr. John A. Cowan Jr., MD for Medicare patients.

The highest averages for the top procedures that Dr. John A. Cowan Jr., MD treated as a neurosurgeon in Rome, GA were spinal procedures, X-rays, nerve procedures and decompression surgery.

arthrodesis (bone fusion surgery)	39
blood draw	23
decompression surgery	50
doctor visit	261
hospital care	19
inpatient care	19
lab tests	44
MRI (magnetic resonance imaging)	29
neck surgery	19
nerve procedures	50
revision surgery	11
spinal procedures	176
X-rays	58

Average Medicare Patient Data From 2013 - 2023

Information about Medicare patients treated by Dr. John A. Cowan Jr., MD.

**Gender**
Female	168
Male	162

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	308
Hispanic	0
Native American / Alaskan Native	0
Other	0

**Age**
85 and over	22
75 to 84	95
Less than 65	69
65 to 74	140

Average of Total of Conditions of Medicare patients treated by Dr. John A. Cowan Jr., MD From 2013 - 2023

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

Hypertension	75
High Cholesterol	69
Stroke	8
Ischemic Heart Disease	40
Depression	29
Chronic Kidney Disease	32
Asthma	9
Osteoporosis	10
Heart Failure	22
Chronic Obstructive Pulmonary Disease	19
Diabetes	34
Atrial Fibrillation	12
Cancer	10
Dementia	10

Education & Training

Dr. John A. Cowan Jr., MD graduated from Johns Hopkins University School of Medicine. He completed residency at Emory University Affiliated Hospitals. He is certified by the American Board of Neurological Surgery, 0 and has a state license in Georgia.

Medical School: Johns Hopkins University School of Medicine

Residency: Emory University Affiliated Hospitals

Board Certification: American Board of Neurological Surgery, 0

Licensed In: Georgia

Affiliations & Hospitals

Dr. John A. Cowan Jr., MD is associated with these hospitals and organizations:

Atrium Health Floyd

ADVENTIST HEALTH SYSTEM GEORGIA INC

Ratings & Reviews

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General Payments

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

**Payments by Company**
Medtronic USA, Inc.	$1,986,429 DIVERGENCE $1,209,172	PIVOX Oblique Lateral Spinal System $770,022	DIVERGENCE-L $696	CAPSTONE $20	$6,519
Medtronic, Inc.	$1,181,036 PIVOX Oblique Lateral Spinal System $653,139	DIVERGENCE ANTERIOR CERVICAL FUSION SYSTEM $327,598	DIVERGENCE $200,292	KYPHON EXPRESS II KYPHOPAK TRAY $7
Medtronic Sofamor Danek USA, Inc.	$100,608 Thoracolumbar - TL Therapies $53,009	Cervical /Trauma Therapies $37,969	Thoracolumbar Therapies $9,511	Interventional Therapies $119
Globus Medical, Inc.	$11,132 Spine $6,953	Fortify Variable Axis $1,409	FORTIFY $1,154	GATEWAY $1,104	Fortify / Fortify-I $512
GE Healthcare	$292 Omniscan $67	$224
Other	$759 TROKENDI XR $118	Duopa $106	CLARUS 500 Fundus Camera $57	OXTELLAR XR $37	CIALIS $24	Other $417

**Types of Payments**
Royalty or License	$3,209,256
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$38,538
Consulting Fee	$20,136
Travel and Lodging	$9,956
Food and Beverage	$2,370

Research Payments

Dr. John A. Cowan Jr., MD has received 4 research payments totaling $7,962.

Biography

Dr. John Cowan is a specialist in neurosurgery in Calhoun, GA and Rome, GA. Before completing his residency at Naval Medical Center San Diego, a hospital affiliated with the University of Michigan, and a hospital affiliated with the University of California, Irvine, Dr. Cowan attended medical school at Johns Hopkins University School of Medicine. His professional affiliations include AdventHealth and Atrium Health Floyd. Dr. Cowan's practice in Rome, GA is open to new patients as reported by AdventHealth.

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Dr. John A. Cowan Jr., MD

Office Locations

In The News (see more mentions in the news)

Noteworthy Medicare Patient Procedures Performed by Dr. John A. Cowan Jr., MD in 2023

By Affordability:

By Affordability:

By Affordability:

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John A. Cowan Jr., MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John A. Cowan Jr., MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John A. Cowan Jr., MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John A. Cowan Jr., MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John A. Cowan Jr., MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John A. Cowan Jr., MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John A. Cowan Jr., MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John A. Cowan Jr., MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John A. Cowan Jr., MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John A. Cowan Jr., MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. John A. Cowan Jr., MD in 2023

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2013 - 2023

Average Medicare Patient Data From 2013 - 2023

Average of Total of Conditions of Medicare patients treated by Dr. John A. Cowan Jr., MD From 2013 - 2023

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Research Payments

Biography

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