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Dr. John Nguyen Winn, MD

(No ratings)

Specializes in: Diagnostic Radiology and Neuroradiology

University of Missouri-Kansas City School of Medicine

3400 Data Drive
Rancho Cordova, CA 95760

(916) 379-3995

Dr. John Nguyen Winn, MD is a diagnostic radiologist in Rancho Cordova, CA specializing in diagnostic radiology and neuroradiology. He graduated from University of Missouri-Kansas City School of Medicine. Dr. John Nguyen Winn, MD is affiliated with Dignity Health, DHMF - California Mercy Radiology Group and Mercy Hospital Folsom Mercy General Hospital Methodist Hospital of Sacramento Mercy San Juan Medical Center Woodland Memorial Hospital.

Office Locations

Mercy Hospital Folsom Mercy General Hospital Methodist Hospital of Sacramento Mercy San Juan Medical Center Woodland Memorial Hospital

3400 Data Drive
Rancho Cordova, CA 95760

(916) 379-3995

(916) 858-7046

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6305 Coyle Avenue
Carmichael, CA 95608

(916) 961-6120

(916) 408-8000

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Noteworthy Medicare Patient Procedures Performed by Dr. John Nguyen Winn, MD in 2023

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

Top 5%

By Volume:

carotid duplex ultrasound

In 2023, Dr. John Nguyen Winn, MD performed more carotid duplex ultrasound procedures for Medicare patients than 95% of providers in related specialties within California.

Top 25%

By Volume:

By Affordability:

neck X-ray

In 2012, among providers in related specialties within California, Dr. John Nguyen Winn, MD performed more brain imaging (neuroimaging), MRI angiogram (MRA), MRI (magnetic resonance imaging), spine imaging, and vascular imaging procedures for Medicare patients than 75% of them and he also had a list price for neck X-ray 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. John Nguyen Winn, MD treated as a diagnostic radiologist in Rancho Cordova, CA during 2012 were X-rays, thoracic (chest) imaging, CT scan and brain imaging (neuroimaging).

Volume of procedures performed by Dr. John Nguyen Winn, MD for Medicare patients.

abdominal imaging	362
aspiration	33
brain imaging (neuroimaging)	672
CT scan	883
hip imaging	48
MRI (magnetic resonance imaging)	251
musculoskeletal imaging	98
neck imaging	12
pelvic imaging	293
pleural drainage	16
spinal procedures	181
thoracic (chest) imaging	1997
ultrasound (sonogram)	207
vascular procedures	171
X-rays	2171

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. John Nguyen Winn, MD treated as a diagnostic radiologist in Rancho Cordova, CA during 2013 were X-rays, thoracic (chest) imaging, CT scan and brain imaging (neuroimaging).

Volume of procedures performed by Dr. John Nguyen Winn, MD for Medicare patients.

abdominal imaging	412
aspiration	40
brain imaging (neuroimaging)	858
CT scan	1162
hip imaging	67
MRI (magnetic resonance imaging)	339
musculoskeletal imaging	131
neck imaging	12
pelvic imaging	316
pleural drainage	16
spinal procedures	300
thoracic (chest) imaging	1882
ultrasound (sonogram)	265
vascular procedures	237
X-rays	2082

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. John Nguyen Winn, MD.

**Gender**
Male	1372
Female	1772

**Ethnicity**
Non-Hispanic White	2324
Black	262
Hispanic	229
Asian	258
Other	56
Native American	15

**Age**
From 65 to 74	949
From 75 to 84	871
85 and over	667
Less than 65	657

Conditions of Medicare patients treated by Dr. John Nguyen Winn, MD in 2013

Hypertension	75
High Cholesterol	60
Stroke	19
Ischemic Heart Disease	46
Depression	32
Chronic Kidney Disease	41
Asthma	13
Osteoperosis	11
Atrial Fibrilation	21
Heart Failure	40
Chronic Obstructive Pulmonary Disease	28
Diabetes	39
Dementia	25
Cancer	13

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. John Nguyen Winn, MD treated as a diagnostic radiologist in Rancho Cordova, CA during 2014 were X-rays, thoracic (chest) imaging, CT scan and brain imaging (neuroimaging).

Volume of procedures performed by Dr. John Nguyen Winn, MD for Medicare patients.

abdominal imaging	419
aspiration	45
brain imaging (neuroimaging)	811
CT scan	1099
hip imaging	54
MRI (magnetic resonance imaging)	405
musculoskeletal imaging	110
neck imaging	23
pelvic imaging	322
pleural drainage	29
spinal procedures	300
thoracic (chest) imaging	1810
ultrasound (sonogram)	253
vascular procedures	219
X-rays	1951

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. John Nguyen Winn, MD.

**Gender**
Male	1280
Female	1608

**Ethnicity**
Non-Hispanic White	2181
Black	217
Hispanic	208
Asian	214
Other	53
Native American	15

**Age**
From 65 to 74	900
From 75 to 84	789
85 and over	567
Less than 65	632

Conditions of Medicare patients treated by Dr. John Nguyen Winn, MD in 2014

Hypertension	75
High Cholesterol	59
Stroke	21
Ischemic Heart Disease	47
Depression	36
Chronic Kidney Disease	41
Asthma	12
Osteoperosis	10
Atrial Fibrilation	21
Heart Failure	39
Chronic Obstructive Pulmonary Disease	29
Diabetes	39
Dementia	23
Cancer	14

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. John Nguyen Winn, MD treated as a diagnostic radiologist in Rancho Cordova, CA during 2015 were X-rays, thoracic (chest) imaging, CT scan and brain imaging (neuroimaging).

Volume of procedures performed by Dr. John Nguyen Winn, MD for Medicare patients.

abdominal imaging	298
brain imaging (neuroimaging)	727
CT scan	775
hip imaging	65
MRI (magnetic resonance imaging)	449
musculoskeletal imaging	103
neck imaging	28
pelvic imaging	244
spinal procedures	272
thoracic (chest) imaging	1481
ultrasound (sonogram)	214
vascular procedures	232
X-rays	1666

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. John Nguyen Winn, MD.

**Gender**
Male	2458
Female	3198

**Ethnicity**
Non-Hispanic White	4180
Black	450
Hispanic	464
Asian	458
Other	76
Native American	28

**Age**
From 65 to 74	1842
From 75 to 84	1618
85 and over	1128
Less than 65	1068

Conditions of Medicare patients treated by Dr. John Nguyen Winn, MD in 2015

Hypertension	75
High Cholesterol	64
Stroke	22
Ischemic Heart Disease	47
Depression	35
Chronic Kidney Disease	46
Asthma	23
Osteoperosis	10
Atrial Fibrilation	22
Heart Failure	41
Chronic Obstructive Pulmonary Disease	29
Diabetes	42
Dementia	23
Cancer	14

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. John Nguyen Winn, MD treated as a diagnostic radiologist in Rancho Cordova, CA during 2016 were X-rays, thoracic (chest) imaging, CT scan and brain imaging (neuroimaging).

Volume of procedures performed by Dr. John Nguyen Winn, MD for Medicare patients.

abdominal imaging	383
aspiration	31
brain imaging (neuroimaging)	700
CT scan	748
MRI (magnetic resonance imaging)	431
musculoskeletal imaging	59
neck imaging	24
pelvic imaging	243
pleural drainage	17
spinal procedures	224
thoracic (chest) imaging	1728
ultrasound (sonogram)	274
vascular procedures	235
X-rays	1823

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. John Nguyen Winn, MD.

**Gender**
Male	1402
Female	1776

**Ethnicity**
Non-Hispanic White	2226
Black	271
Hispanic	301
Asian	307
Other	48
Native American	25

**Age**
From 65 to 74	1042
From 75 to 84	841
85 and over	576
Less than 65	719

Conditions of Medicare patients treated by Dr. John Nguyen Winn, MD in 2016

Hypertension	75
High Cholesterol	61
Stroke	18
Ischemic Heart Disease	44
Depression	34
Chronic Kidney Disease	49
Asthma	34
Osteoperosis	9
Atrial Fibrilation	19
Heart Failure	38
Chronic Obstructive Pulmonary Disease	30
Diabetes	42
Dementia	23
Cancer	14

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. John Nguyen Winn, MD treated as a diagnostic radiologist in Rancho Cordova, CA during 2017 were thoracic (chest) imaging, X-rays, brain imaging (neuroimaging) and CT scan.

Volume of procedures performed by Dr. John Nguyen Winn, MD for Medicare patients.

abdominal imaging	311
brain imaging (neuroimaging)	800
CT scan	792
MRI (magnetic resonance imaging)	545
musculoskeletal imaging	79
neck imaging	64
pelvic imaging	207
spinal procedures	274
thoracic (chest) imaging	1766
ultrasound (sonogram)	267
vascular procedures	250
X-rays	1764

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. John Nguyen Winn, MD.

**Gender**
Male	1423
Female	1978

**Ethnicity**
Non-Hispanic White	2366
Black	272
Hispanic	345
Asian	318
Other	78
Native American	22

**Age**
From 65 to 74	1118
From 75 to 84	942
85 and over	652
Less than 65	689

Conditions of Medicare patients treated by Dr. John Nguyen Winn, MD in 2017

Hypertension	75
High Cholesterol	59
Stroke	18
Ischemic Heart Disease	44
Depression	36
Chronic Kidney Disease	48
Asthma	13
Osteoperosis	11
Atrial Fibrilation	19
Heart Failure	35
Chronic Obstructive Pulmonary Disease	29
Diabetes	38
Dementia	24
Cancer	15

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. John Nguyen Winn, MD treated as a diagnostic radiologist in Rancho Cordova, CA during 2018 were CT scan, brain imaging (neuroimaging), MRI (magnetic resonance imaging) and abdominal imaging.

Volume of procedures performed by Dr. John Nguyen Winn, MD for Medicare patients.

abdominal imaging	332
brain imaging (neuroimaging)	788
CT scan	789
diagnostic procedures	11
minimally invasive procedures	11
minor procedures	11
MRI (magnetic resonance imaging)	447
musculoskeletal imaging	76
neck imaging	31
pelvic imaging	249
spinal procedures	213
thoracic (chest) imaging	111
ultrasound (sonogram)	256
vascular procedures	264
X-rays	177

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. John Nguyen Winn, MD.

**Gender**
Male	1601
Female	2151

**Ethnicity**
Non-Hispanic White	2556
Black	343
Hispanic	381
Asian	344
Other	105
Native American	23

**Age**
From 65 to 74	1292
From 75 to 84	1029
85 and over	686
Less than 65	745

Conditions of Medicare patients treated by Dr. John Nguyen Winn, MD in 2018

Hypertension	75
High Cholesterol	64
Stroke	17
Ischemic Heart Disease	46
Depression	36
Chronic Kidney Disease	49
Asthma	13
Osteoperosis	11
Atrial Fibrilation	19
Heart Failure	36
Chronic Obstructive Pulmonary Disease	28
Diabetes	41
Dementia	23
Cancer	14

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. John Nguyen Winn, MD treated as a diagnostic radiologist in Rancho Cordova, CA during 2019 were CT scan, brain imaging (neuroimaging), MRI (magnetic resonance imaging) and abdominal imaging.

Volume of procedures performed by Dr. John Nguyen Winn, MD for Medicare patients.

abdominal imaging	339
aspiration	18
brain imaging (neuroimaging)	719
CT scan	787
MRI (magnetic resonance imaging)	499
musculoskeletal imaging	111
neck imaging	11
pelvic imaging	244
pleural drainage	18
spinal procedures	286
thoracic (chest) imaging	150
ultrasound (sonogram)	268
vascular procedures	213
X-rays	205

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. John Nguyen Winn, MD.

**Gender**
Male	1523
Female	2025

**Ethnicity**
Non-Hispanic White	2429
Black	294
Hispanic	350
Asian	360
Other	91
Native American	24

**Age**
From 65 to 74	1192
From 75 to 84	1063
85 and over	622
Less than 65	671

Conditions of Medicare patients treated by Dr. John Nguyen Winn, MD in 2019

Hypertension	75
High Cholesterol	66
Stroke	16
Ischemic Heart Disease	45
Depression	37
Chronic Kidney Disease	50
Asthma	12
Osteoperosis	11
Atrial Fibrilation	19
Heart Failure	37
Chronic Obstructive Pulmonary Disease	29
Diabetes	41
Dementia	23
Cancer	14

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. John Nguyen Winn, MD treated as a diagnostic radiologist in Rancho Cordova, CA during 2020 were CT scan, brain imaging (neuroimaging), MRI (magnetic resonance imaging) and spinal procedures.

Volume of procedures performed by Dr. John Nguyen Winn, MD for Medicare patients.

abdominal imaging	270
aspiration	22
brain imaging (neuroimaging)	681
CT scan	686
MRI (magnetic resonance imaging)	517
musculoskeletal imaging	68
neck imaging	50
pelvic imaging	220
pleural drainage	22
spinal procedures	329
thoracic (chest) imaging	111
ultrasound (sonogram)	217
vascular procedures	216
X-rays	170

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. John Nguyen Winn, MD.

**Gender**
Male	1373
Female	1899

**Ethnicity**
Non-Hispanic White	2222
Black	270
Hispanic	358
Asian	313
Other	86
Native American	23

**Age**
From 65 to 74	1252
From 75 to 84	929
85 and over	542
Less than 65	549

Conditions of Medicare patients treated by Dr. John Nguyen Winn, MD in 2020

Hypertension	75
High Cholesterol	68
Stroke	17
Ischemic Heart Disease	47
Depression	36
Chronic Kidney Disease	51
Asthma	13
Osteoperosis	11
Atrial Fibrilation	19
Heart Failure	36
Chronic Obstructive Pulmonary Disease	26
Diabetes	40
Dementia	24
Cancer	15

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. John Nguyen Winn, MD treated as a diagnostic radiologist in Rancho Cordova, CA during 2021 were brain imaging (neuroimaging), MRI (magnetic resonance imaging), CT scan and spinal procedures.

Volume of procedures performed by Dr. John Nguyen Winn, MD for Medicare patients.

abdominal imaging	256
brain imaging (neuroimaging)	697
CT scan	622
MRI (magnetic resonance imaging)	658
musculoskeletal imaging	59
neck imaging	75
pelvic imaging	194
spinal procedures	394
thoracic (chest) imaging	90
ultrasound (sonogram)	199
vascular procedures	238
X-rays	127

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. John Nguyen Winn, MD.

**Gender**
Male	1187
Female	1620

**Ethnicity**
Non-Hispanic White	1908
Black	215
Hispanic	301
Asian	284
Other	83
Native American	16

**Age**
From 65 to 74	1007
From 75 to 84	830
85 and over	498
Less than 65	472

Conditions of Medicare patients treated by Dr. John Nguyen Winn, MD in 2021

Hypertension	75
High Cholesterol	69
Stroke	17
Ischemic Heart Disease	45
Depression	34
Chronic Kidney Disease	49
Asthma	13
Osteoperosis	13
Atrial Fibrilation	18
Heart Failure	33
Chronic Obstructive Pulmonary Disease	23
Diabetes	39
Dementia	23
Cancer	14

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. John Nguyen Winn, MD treated as a diagnostic radiologist in Rancho Cordova, CA during 2022 were CT scan, brain imaging (neuroimaging), MRI (magnetic resonance imaging) and abdominal imaging.

Volume of procedures performed by Dr. John Nguyen Winn, MD for Medicare patients.

abdominal imaging	250
brain imaging (neuroimaging)	591
CT scan	707
MRI (magnetic resonance imaging)	408
musculoskeletal imaging	58
neck imaging	54
pelvic imaging	226
spinal procedures	248
thoracic (chest) imaging	94
ultrasound (sonogram)	149
vascular procedures	160
X-rays	131

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. John Nguyen Winn, MD.

**Gender**
Male	1215
Female	1611

**Ethnicity**
Non-Hispanic White	1876
Black	223
Hispanic	322
Asian	293
Other	96
Native American	16

**Age**
From 65 to 74	1045
From 75 to 84	865
85 and over	507
Less than 65	409

Conditions of Medicare patients treated by Dr. John Nguyen Winn, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	22
Ischemic Heart Disease	36
Depression	34
Chronic Kidney Disease	36
Asthma	15
Osteoperosis	15
Atrial Fibrilation	30
Heart Failure	31
Chronic Obstructive Pulmonary Disease	27
Diabetes	39
Dementia	19
Cancer	15

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. John Nguyen Winn, MD for Medicare patients.

The highest averages for the top procedures that Dr. John Nguyen Winn, MD treated as a diagnostic radiologist in Rancho Cordova, CA were X-rays, thoracic (chest) imaging, CT scan and brain imaging (neuroimaging).

abdominal imaging	330
aspiration	31
brain imaging (neuroimaging)	731
CT scan	822
diagnostic procedures	11
hip imaging	58
minimally invasive procedures	11
minor procedures	11
MRI (magnetic resonance imaging)	449
musculoskeletal imaging	86
neck imaging	34
pelvic imaging	250
pleural drainage	19
spinal procedures	274
thoracic (chest) imaging	1020
ultrasound (sonogram)	233
vascular procedures	221
X-rays	1115

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. John Nguyen Winn, MD.

**Gender**
Male	1348
Female	1785

**Ethnicity**
Black / African American	256
Asian / Pacific Islander	286
Non-Hispanic White	2206
Native American / Alaskan Native	18
Hispanic	296
Other	70

**Age**
75 to 84	888
85 and over	585
Less than 65	601
65 to 74	1058

Average of Total of Conditions of Medicare patients treated by Dr. John Nguyen Winn, MD From 2012 - 2022

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

Hypertension	68
High Cholesterol	58
Stroke	17
Ischemic Heart Disease	40
Depression	31
Chronic Kidney Disease	41
Asthma	14
Osteoporosis	10
Heart Failure	33
Chronic Obstructive Pulmonary Disease	25
Diabetes	36
Atrial Fibrillation	18
Dementia	20
Cancer	12

Education & Training

Dr. John Nguyen Winn, MD graduated from University of Missouri-Kansas City School of Medicine. He completed residency at St. Louis University (SLU) Affiliated Hospitals. He is certified by the Radiology Diagnostic Radiology Radiology (Sub: Neuroradiology) and has a state license in California.

Medical School: University of Missouri-Kansas City School of Medicine

Residency: St. Louis University (SLU) Affiliated Hospitals

Board Certification: Radiology Diagnostic Radiology Radiology (Sub: Neuroradiology)

Licensed In: California

Affiliations & Hospitals

Dr. John Nguyen Winn, MD is associated with these hospitals and organizations:

Dignity Health

DHMF - California Mercy Radiology Group

Mercy Hospital Folsom Mercy General Hospital Methodist Hospital of Sacramento Mercy San Juan Medical Center Woodland Memorial Hospital

Insurance Information

Please note: Insurance information may change at any time, and the provider may accept your insurance plan even if it is not listed below. Please contact the provider's office to confirm that your insurance is accepted.

Dr. John Nguyen Winn, MD appears to accept the following insurance providers: TRICARE, Cigna, Private Healthcare Systems (PHCS), CorVel, Centene, Anthem, First Health, ValueOptions, TriWest, United Healthcare, Managed Health Network (MHN), Magellan Health Services, Kaiser Permanente and HealthSmart.

Insurance Accepted by Provider includes:

According to our sources, Dr. John Nguyen Winn, MD accepts the following insurance providers:

TRICARE

Cigna

Private Healthcare Systems (PHCS)

CorVel

Centene

Anthem

First Health

ValueOptions

TriWest

United Healthcare

Managed Health Network (MHN)

Magellan Health Services

Kaiser Permanente

HealthSmart

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General Payments

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

**Payments by Company**
Lilly USA, LLC	$140 AMYVID $140
Toshiba America Medical Systems, Inc.	$34 UL $20	VL $14
TERUMO MEDICAL CORPORATION	$12 AZUR $12

**Types of Payments**
Food and Beverage	$186

Biography

Dr. John Winn, who practices in Carmichael, CA and Rancho Cordova, CA, is a medical specialist in neuroradiology and diagnostic radiology. He is affiliated with Dignity Health Medical Foundation. He is in-network for several insurance carriers, including Magellan Health Services, Anthem, and Blue California. According to Dignity Health, Dr. Winn is not acceping new patients at this time. After completing medical school at the University of Missouri-Kansas City School of Medicine, he performed his residency at a hospital affiliated with St. Louis University (SLU).