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Dr. Richard X. Nguyen, MD

Accepting New Patients

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Specializes in: Internal Medicine (Adult Medicine) and General Pediatrics

Rosalind Franklin University of Medicine and Science, Chicago Medical School

719 N A Street
Oxnard, CA 93030

(805) 485-9123

Dr. Richard X. Nguyen, MD is an internist in Oxnard, CA specializing in internal medicine (adult medicine) and general pediatrics. He graduated from Rosalind Franklin University of Medicine and Science, Chicago Medical School. Dr. Richard X. Nguyen, MD is affiliated with Dignity Health and St John's Regional Med Center/St John's Hospital Camarillo.

Office Locations

St John's Regional Med Center/St John's Hospital Camarillo

719 N A Street
Oxnard, CA 93030

(805) 485-9123

(805) 485-0566

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Noteworthy Medicare Patient Procedures Performed by Dr. Richard X. Nguyen, MD in 2023

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

Top 5%

By Volume:

postprandial glucose test

By Affordability:

In 2023, among providers in related specialties within California, Dr. Richard X. Nguyen, MD performed more postprandial (after meal) glucose test procedures for Medicare patients than 95% of them and he also had a list price for flu shot, flu vaccine, immunization (preventive vaccines), and vaccines that was lower than the list prices billed to Medicare by 95% 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.

Top 10%

By Volume:

By Affordability:

urinalysis

In 2023, among providers in related specialties within California, Dr. Richard X. Nguyen, MD performed more flu shot, lab tests, preventive care, and urinalysis procedures for Medicare patients than 90% of them and he also had a list price for urinalysis that was lower than the list prices billed to Medicare by 90% 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.

Top 25%

By Volume:

A1C test

By Affordability:

A1C test

diabetes screening

glycated protein test

In 2012, among providers in related specialties within California, Dr. Richard X. Nguyen, MD performed more A1C test procedures for Medicare patients than 75% of them and he also had a list price for A1C test, diabetes screening, and glycated protein test 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. Richard X. Nguyen, MD treated as an internist in Oxnard, CA during 2012 were lab tests, preventive care, vaccines and diabetes management.

Volume of procedures performed by Dr. Richard X. Nguyen, MD for Medicare patients.

breathing treatment	31
debridement (removal of unhealthy tissue)	21
diabetes management	121
doctor visit	1836
hospital care	74
inpatient care	74
lab tests	1657
musculoskeletal imaging	20
preventive care	675
ultrasound (sonogram)	20
vaccines	148

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Richard X. Nguyen, MD treated as an internist in Oxnard, CA during 2013 were lab tests, preventive care, vaccines and diabetes management.

Volume of procedures performed by Dr. Richard X. Nguyen, MD for Medicare patients.

cytology	14
diabetes management	128
diagnostic procedures	11
doctor visit	1935
ear procedures	11
gynecologic pathology	14
hospital care	46
inpatient care	46
lab tests	1425
preventive care	634
vaccines	193

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Richard X. Nguyen, MD.

**Gender**
Male	152
Female	205

**Ethnicity**
Non-Hispanic White	63
Black	0
Hispanic	242
Asian	36
Other	0
Native American	0

**Age**
From 65 to 74	120
From 75 to 84	144
85 and over	42
Less than 65	51

Conditions of Medicare patients treated by Dr. Richard X. Nguyen, MD in 2013

Hypertension	75
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	39
Depression	13
Chronic Kidney Disease	22
Asthma	10
Osteoperosis	11
Atrial Fibrilation	13
Heart Failure	21
Chronic Obstructive Pulmonary Disease	11
Diabetes	45
Dementia	10
Cancer	8

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Richard X. Nguyen, MD treated as an internist in Oxnard, CA during 2014 were lab tests, preventive care, diabetes management and vaccines.

Volume of procedures performed by Dr. Richard X. Nguyen, MD for Medicare patients.

diabetes management	194
doctor visit	1843
lab tests	1728
preventive care	668
vaccines	147

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Richard X. Nguyen, MD.

**Gender**
Male	127
Female	202

**Ethnicity**
Non-Hispanic White	56
Black	0
Hispanic	220
Asian	39
Other	0
Native American	0

**Age**
From 65 to 74	116
From 75 to 84	125
85 and over	45
Less than 65	43

Conditions of Medicare patients treated by Dr. Richard X. Nguyen, MD in 2014

Hypertension	75
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	36
Depression	11
Chronic Kidney Disease	21
Asthma	9
Osteoperosis	5
Atrial Fibrilation	10
Heart Failure	19
Chronic Obstructive Pulmonary Disease	10
Diabetes	43
Dementia	9
Cancer	6

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Richard X. Nguyen, MD treated as an internist in Oxnard, CA during 2015 were lab tests, preventive care, diabetes management and vaccines.

Volume of procedures performed by Dr. Richard X. Nguyen, MD for Medicare patients.

debridement (removal of unhealthy tissue)	26
diabetes management	181
doctor visit	1879
lab tests	1818
preventive care	689
vaccines	119

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Richard X. Nguyen, MD.

**Gender**
Male	260
Female	408

**Ethnicity**
Non-Hispanic White	108
Black	0
Hispanic	440
Asian	86
Other	0
Native American	0

**Age**
From 65 to 74	240
From 75 to 84	242
85 and over	96
Less than 65	90

Conditions of Medicare patients treated by Dr. Richard X. Nguyen, MD in 2015

Hypertension	75
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	40
Depression	7
Chronic Kidney Disease	26
Asthma	9
Osteoperosis	4
Atrial Fibrilation	12
Heart Failure	23
Chronic Obstructive Pulmonary Disease	10
Diabetes	42
Dementia	7
Cancer	6

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Richard X. Nguyen, MD treated as an internist in Oxnard, CA during 2016 were lab tests, preventive care, diabetes management and vaccines.

Volume of procedures performed by Dr. Richard X. Nguyen, MD for Medicare patients.

debridement (removal of unhealthy tissue)	29
diabetes management	186
doctor visit	1824
lab tests	1700
preventive care	684
vaccines	112

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Richard X. Nguyen, MD.

**Gender**
Male	128
Female	213

**Ethnicity**
Non-Hispanic White	56
Black	0
Hispanic	222
Asian	44
Other	0
Native American	0

**Age**
From 65 to 74	120
From 75 to 84	125
85 and over	50
Less than 65	46

Conditions of Medicare patients treated by Dr. Richard X. Nguyen, MD in 2016

Hypertension	75
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	40
Depression	9
Chronic Kidney Disease	36
Asthma	14
Osteoperosis	8
Atrial Fibrilation	15
Heart Failure	23
Chronic Obstructive Pulmonary Disease	13
Diabetes	45
Dementia	7
Cancer	5

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Richard X. Nguyen, MD treated as an internist in Oxnard, CA during 2017 were lab tests, preventive care, diabetes management and vaccines.

Volume of procedures performed by Dr. Richard X. Nguyen, MD for Medicare patients.

cardiac procedures	15
debridement (removal of unhealthy tissue)	18
diabetes management	195
doctor visit	1780
lab tests	1873
preventive care	694
vaccines	161

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Richard X. Nguyen, MD.

**Gender**
Male	129
Female	193

**Ethnicity**
Non-Hispanic White	52
Black	0
Hispanic	211
Asian	44
Other	0
Native American	0

**Age**
From 65 to 74	113
From 75 to 84	125
85 and over	45
Less than 65	39

Conditions of Medicare patients treated by Dr. Richard X. Nguyen, MD in 2017

Hypertension	75
High Cholesterol	75
Stroke	4
Ischemic Heart Disease	39
Depression	10
Chronic Kidney Disease	43
Asthma	8
Osteoperosis	7
Atrial Fibrilation	12
Heart Failure	21
Chronic Obstructive Pulmonary Disease	11
Diabetes	48
Dementia	8
Cancer	5

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Richard X. Nguyen, MD treated as an internist in Oxnard, CA during 2018 were lab tests, preventive care, diabetes management and vaccines.

Volume of procedures performed by Dr. Richard X. Nguyen, MD for Medicare patients.

diabetes management	173
doctor visit	1894
lab tests	1727
preventive care	603
vaccines	62

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Richard X. Nguyen, MD.

**Gender**
Male	120
Female	182

**Ethnicity**
Non-Hispanic White	49
Black	0
Hispanic	193
Asian	47
Other	0
Native American	0

**Age**
From 65 to 74	108
From 75 to 84	116
85 and over	45
Less than 65	33

Conditions of Medicare patients treated by Dr. Richard X. Nguyen, MD in 2018

Hypertension	75
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	39
Depression	11
Chronic Kidney Disease	44
Asthma	5
Osteoperosis	8
Atrial Fibrilation	13
Heart Failure	22
Chronic Obstructive Pulmonary Disease	9
Diabetes	46
Dementia	10
Cancer	6

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Richard X. Nguyen, MD treated as an internist in Oxnard, CA during 2019 were lab tests, preventive care, diabetes management and vaccines.

Volume of procedures performed by Dr. Richard X. Nguyen, MD for Medicare patients.

chronic care	69
diabetes management	178
doctor visit	2041
lab tests	1452
preventive care	682
vaccines	128

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Richard X. Nguyen, MD.

**Gender**
Male	128
Female	186

**Ethnicity**
Non-Hispanic White	47
Black	0
Hispanic	198
Asian	55
Other	0
Native American	0

**Age**
From 65 to 74	108
From 75 to 84	110
85 and over	56
Less than 65	40

Conditions of Medicare patients treated by Dr. Richard X. Nguyen, MD in 2019

Hypertension	75
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	39
Depression	11
Chronic Kidney Disease	45
Asthma	7
Osteoperosis	10
Atrial Fibrilation	12
Heart Failure	21
Chronic Obstructive Pulmonary Disease	11
Diabetes	44
Dementia	11
Cancer	6

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Richard X. Nguyen, MD treated as an internist in Oxnard, CA during 2020 were lab tests, chronic care, preventive care and diabetes management.

Volume of procedures performed by Dr. Richard X. Nguyen, MD for Medicare patients.

chronic care	428
diabetes management	90
doctor visit	1733
lab tests	582
preventive care	268
vaccines	19

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Richard X. Nguyen, MD.

**Gender**
Male	111
Female	175

**Ethnicity**
Non-Hispanic White	0
Black	0
Hispanic	184
Asian	54
Other	0
Native American	0

**Age**
From 65 to 74	93
From 75 to 84	103
85 and over	54
Less than 65	36

Conditions of Medicare patients treated by Dr. Richard X. Nguyen, MD in 2020

Hypertension	75
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	37
Depression	75
Chronic Kidney Disease	47
Asthma	9
Osteoperosis	7
Atrial Fibrilation	12
Heart Failure	22
Chronic Obstructive Pulmonary Disease	13
Diabetes	46
Dementia	14
Cancer	6

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Richard X. Nguyen, MD treated as an internist in Oxnard, CA during 2021 were lab tests, preventive care, chronic care and diabetes management.

Volume of procedures performed by Dr. Richard X. Nguyen, MD for Medicare patients.

chronic care	279
diabetes management	117
doctor visit	1608
lab tests	625
preventive care	397
vaccines	108

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Richard X. Nguyen, MD.

**Gender**
Male	113
Female	160

**Ethnicity**
Non-Hispanic White	0
Black	0
Hispanic	162
Asian	54
Other	0
Native American	0

**Age**
From 65 to 74	81
From 75 to 84	96
85 and over	64
Less than 65	32

Conditions of Medicare patients treated by Dr. Richard X. Nguyen, MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	38
Depression	75
Chronic Kidney Disease	53
Asthma	10
Osteoperosis	11
Atrial Fibrilation	11
Heart Failure	24
Chronic Obstructive Pulmonary Disease	13
Diabetes	46
Dementia	15
Cancer	5

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Richard X. Nguyen, MD treated as an internist in Oxnard, CA during 2022 were lab tests, preventive care, chronic care and vaccines.

Volume of procedures performed by Dr. Richard X. Nguyen, MD for Medicare patients.

chronic care	142
diabetes management	96
doctor visit	1475
lab tests	609
preventive care	370
vaccines	136

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Richard X. Nguyen, MD.

**Gender**
Male	106
Female	152

**Ethnicity**
Non-Hispanic White	0
Black	0
Hispanic	150
Asian	55
Other	0
Native American	0

**Age**
From 65 to 74	75
From 75 to 84	87
85 and over	68
Less than 65	28

Conditions of Medicare patients treated by Dr. Richard X. Nguyen, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	12
Ischemic Heart Disease	32
Depression	75
Chronic Kidney Disease	31
Asthma	10
Osteoperosis	20
Atrial Fibrilation	21
Heart Failure	28
Chronic Obstructive Pulmonary Disease	16
Diabetes	47
Dementia	11
Cancer	8

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Richard X. Nguyen, MD treated as an internist in Oxnard, CA during 2023 were lab tests, preventive care, chronic care and vaccines.

Volume of procedures performed by Dr. Richard X. Nguyen, MD for Medicare patients.

chronic care	123
diabetes management	111
doctor visit	1368
lab tests	569
preventive care	348
vaccines	120

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Richard X. Nguyen, MD.

**Gender**
Male	99
Female	148

**Ethnicity**
Non-Hispanic White	0
Black	0
Hispanic	145
Asian	52
Other	0
Native American	0

**Age**
From 65 to 74	66
From 75 to 84	78
85 and over	82
Less than 65	21

Conditions of Medicare patients treated by Dr. Richard X. Nguyen, MD in 2023

Hypertension	75
High Cholesterol	75
Stroke	11
Ischemic Heart Disease	32
Depression	75
Chronic Kidney Disease	34
Asthma	11
Osteoperosis	27
Atrial Fibrilation	22
Heart Failure	23
Chronic Obstructive Pulmonary Disease	17
Diabetes	47
Dementia	13
Cancer	7

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Richard X. Nguyen, MD for Medicare patients.

The highest averages for the top procedures that Dr. Richard X. Nguyen, MD treated as an internist in Oxnard, CA were lab tests, preventive care, chronic care and diabetes management.

cardiac procedures	15
chronic care	208
cytology	14
debridement (removal of unhealthy tissue)	23
diabetes management	147
diagnostic procedures	11
doctor visit	1768
ear procedures	11
gynecologic pathology	14
hospital care	60
inpatient care	60
lab tests	1313
musculoskeletal imaging	20
preventive care	559
ultrasound (sonogram)	20
vaccines	121

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Richard X. Nguyen, MD.

**Gender**
Male	122
Female	185

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	47
Non-Hispanic White	35
Hispanic	197
Native American / Alaskan Native	0
Other	0

**Age**
75 to 84	112
85 and over	53
Less than 65	38
65 to 74	103

Average of Total of Conditions of Medicare patients treated by Dr. Richard X. Nguyen, MD From 2012 - 2023

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

Hypertension	68
High Cholesterol	68
Stroke	6
Ischemic Heart Disease	34
Depression	31
Chronic Kidney Disease	33
Asthma	8
Osteoporosis	9
Heart Failure	20
Chronic Obstructive Pulmonary Disease	11
Diabetes	41
Atrial Fibrillation	12
Cancer	5
Dementia	9

Education & Training

Dr. Richard X. Nguyen, MD graduated from Rosalind Franklin University of Medicine and Science, Chicago Medical School. He has a state license in California.

Medical School: Rosalind Franklin University of Medicine and Science, Chicago Medical School

Licensed In: California

Affiliations & Hospitals

Dr. Richard X. Nguyen, MD is associated with these hospitals and organizations:

Dignity Health

St John's Regional Med Center/St John's Hospital Camarillo

Ratings & Reviews

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General Payments

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

**Payments by Company**
Sun Pharmaceutical Industries Inc.	$132 CEQUA $72	XELPROS $36	Bromsite $25
Intuitive Surgical, Inc.	$77 Da Vinci Surgical System $77
Abbott Laboratories	$74 Freestyle Libre 2 $58	PROCLAIM $16
Merck Sharp & Dohme Corporation	$64 GARDASIL9 $34	STEGLATRO $16	JANUMET XR $15
AstraZeneca Pharmaceuticals LP	$50 BRILINTA $50
Other	$68 RAGWITEK $23	Spiriva $22	Endocrinology $12	ENTRESTO $11

**Types of Payments**
Food and Beverage	$466

Biography

Dr. Richard Nguyen is a general pediatrics specialist in Oxnard, CA. Dr. Nguyen attended medical school at Rosalind Franklin University of Medicine and Science, Chicago Medical School. Dr. Nguyen (or staff) is conversant in Spanish and Vietnamese. He is professionally affiliated with Dignity Health. He welcomes new patients at his office inOxnard, CA as reported by Dignity Health.