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Dr. Ninh T. Nguyen, MD

Accepting New Patients

(Ninh T. Nguyen, MD)

(77 Ratings)

Specializes in: General Surgery and General Practice

University of Texas Health Science Center at San Antonio, School of Medicine

Professional interests include: minimally invasive surgery, cancer, acid reflux (GERD), and more.

101 The City Drive South Building 22C
Orange, CA 92868

1-888-717-4463

Dr. Ninh T. Nguyen, MD is a general surgeon in Orange, CA specializing in general surgery and general practice. He graduated from University of Texas Health Science Center at San Antonio, School of Medicine. Dr. Ninh T. Nguyen, MD is affiliated with UCI Health and UCI Health — Costa Mesa.

Office Locations

101 The City Drive South Building 22C
Orange, CA 92868

open_in_new

19200 Jamboree Road Suite 3300
Irvine, CA 92612

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19208 Jamboree Road
Irvine, CA 92612

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1640 Newport Boulevard Suite 100
Costa Mesa, CA 92627

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Some issues Dr. Ninh T. Nguyen, MD can help you with:

Robotic Surgery

Robotic surgery is a type of minimally invasive surgery, using a tiny opening to get inside the body instead of making a large cut. It uses small tools attached to a thin robotic arm, which is controlled by the surgeon. Robotic surgery may be referred to by the specific kind of robot that is used. The most advanced robot currently in use is called the da Vinci, and surgery using it is sometimes called da Vinci surgery.

There are many benefits to robotic surgery, both for the patient and the surgeon. Robotic surgery allows for more precise movements and increased control during very delicate surgical procedures. This makes performing surgery accurately much easier for surgeons and reduces fatigue. The smaller 'hand' of the robot can enter the body via a much smaller opening, which reduces the risk of infection and scarring and leads to a faster recovery. The robotic hands also contain tiny moveable cameras among their tools, giving surgeons a much closer view of the procedure than would be possible with traditional surgery.

Weight Loss Surgery (Bariatric Surgery)

Bariatric or weight-loss surgery is a surgical procedure performed to help significantly obese patients lose weight when more traditional methods, such as dieting and exercise, have not helped. Depending on the type, these surgeries change the gastrointestinal tract to limit how much food can be eaten and also change how food is absorbed by the body. Of the various bariatric surgeries available, the most common is gastric bypass.

By far the most common of the gastric bypass surgeries is called Roux-en-Y. During this surgery, part of the stomach and small intestine are detached from the gastrointestinal tract, in order to make the tract smaller. The surgeon divides the stomach into two parts. The working stomach, at the end of the esophagus, is now tiny - only the size of a walnut. This makes patients feel full after eating a small amount of food. Then the small intestine is also divided, and after bypassing a section of the small intestine to reduce food absorption, the intestine is attached to the small stomach pouch. The patient now has a working stomach and intestine like before, only much smaller.

Because gastric bypass is used to treat extreme obesity, it can reduce the risk of some of the problems associated with obesity. Gastric bypass can help treat or reduce the risk for such conditions as heart disease, high blood pressure, sleep apnea, and type 2 diabetes. However, it is a major surgery and also carries risks itself. Any surgery can lead to infection, bleeding, or blood clots, and weight loss surgery in particular carries risks of leaks in the gastrointestinal system, malnutrition, bowel obstructions, and vomiting.

Typically patients are considered candidates for gastric bypass surgery if they have a BMI greater than 40, or sometimes if they have a BMI between 35 and 40 but are suffering from obesity-related illnesses such as diabetes. The outlook is generally good, with most patients losing between 50-75% of their excess weight in 1-2 years. However, patients must follow strict diet guidelines so that the stomach can heal, starting with no food at all, then followed by a liquid diet for some time. For many severely obese patients who have tried strict diets before without success, gastric bypass surgery is the tool that allows them to finally achieve their weight loss and health goals.

In The News (see more mentions in the news)

“University of California, Irvine's chief bariatric surgeon, Dr. Ninh Nguyen, cautioned that the gastric balloon is not a permanent solution to weight loss.”—"Gastric balloon taken like pill might cut weight", Twin Cities Pioneer Press, November 2015

“University of California Irvine s chief bariatric surgeon, Dr. Ninh T. Nguyen, cautioned that the gastric balloon is not a permanent solution to weight loss.”—"A swallowed pill appears to deliver weight loss without gastric surgery", South Florida Sun-Sentinel, November 2015

“University of California Irvine's chief bariatric surgeon, Dr. Ninh T. Nguyen, cautioned that the gastric balloon is not a permanent solution to weight loss.”—"A swallowed pill appears to deliver weight loss without gastric surgery", Orlando Sentinel, November 2015

Noteworthy Medicare Patient Procedures Performed by Dr. Ninh T. Nguyen, MD in 2023

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

Top 10%

By Affordability:

esophagoscopy

In 2023, Dr. Ninh T. Nguyen, MD had a list price for esophagoscopy that was lower than the list prices billed to Medicare by 90% of providers in related specialties within California. 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:

laparoscopic paraesophageal hernia repair

By Affordability:

diagnostic esophagoscopy

diagnostic esophagoscopy without biopsy

diagnostic upper endoscopy

upper endoscopy

In 2012, among providers in related specialties within California, Dr. Ninh T. Nguyen, MD performed more laparoscopic paraesophageal hernia repair procedures for Medicare patients than 75% of them and he also had a list price for diagnostic esophagoscopy, diagnostic esophagoscopy without biopsy, diagnostic upper endoscopy, and upper endoscopy 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. Ninh T. Nguyen, MD treated as a general surgeon in Orange, CA during 2012 were minimally invasive procedures, gastrointestinal procedures, anastomosis and catheterization.

Volume of procedures performed by Dr. Ninh T. Nguyen, MD for Medicare patients.

abdominal surgery	15
anastomosis	15
catheterization	15
doctor visit	208
gastrointestinal procedures	29
minimally invasive procedures	29

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Ninh T. Nguyen, MD treated as a general surgeon in Orange, CA during 2013 were minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Ninh T. Nguyen, MD for Medicare patients.

doctor visit	186
gastrointestinal procedures	34
minimally invasive procedures	34

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Ninh T. Nguyen, MD.

**Gender**
Male	91
Female	86

**Ethnicity**
Non-Hispanic White	103
Black	0
Hispanic	31
Asian	30
Other	0
Native American	0

**Age**
From 65 to 74	85
From 75 to 84	0
85 and over	0
Less than 65	46

Conditions of Medicare patients treated by Dr. Ninh T. Nguyen, MD in 2013

Hypertension	75
High Cholesterol	57
Stroke	0
Ischemic Heart Disease	46
Depression	21
Chronic Kidney Disease	24
Asthma	10
Osteoperosis	8
Atrial Fibrilation	13
Heart Failure	21
Chronic Obstructive Pulmonary Disease	19
Diabetes	38
Dementia	6
Cancer	14

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Ninh T. Nguyen, MD treated as a general surgeon in Orange, CA during 2014 were hospital care and inpatient care.

Volume of procedures performed by Dr. Ninh T. Nguyen, MD for Medicare patients.

doctor visit	192
hospital care	12
inpatient care	12

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Ninh T. Nguyen, MD.

**Gender**
Male	76
Female	104

**Ethnicity**
Non-Hispanic White	103
Black	0
Hispanic	25
Asian	38
Other	0
Native American	0

**Age**
From 65 to 74	84
From 75 to 84	50
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Ninh T. Nguyen, MD in 2014

Hypertension	75
High Cholesterol	65
Stroke	0
Ischemic Heart Disease	42
Depression	28
Chronic Kidney Disease	27
Asthma	12
Osteoperosis	11
Atrial Fibrilation	14
Heart Failure	22
Chronic Obstructive Pulmonary Disease	17
Diabetes	43
Dementia	7
Cancer	12

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Ninh T. Nguyen, MD treated as a general surgeon in Orange, CA during 2015 were minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Ninh T. Nguyen, MD for Medicare patients.

doctor visit	166
gastrointestinal procedures	39
minimally invasive procedures	39

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Ninh T. Nguyen, MD.

**Gender**
Male	146
Female	172

**Ethnicity**
Non-Hispanic White	208
Black	0
Hispanic	50
Asian	38
Other	0
Native American	0

**Age**
From 65 to 74	158
From 75 to 84	0
85 and over	0
Less than 65	74

Conditions of Medicare patients treated by Dr. Ninh T. Nguyen, MD in 2015

Hypertension	67
High Cholesterol	57
Stroke	0
Ischemic Heart Disease	40
Depression	28
Chronic Kidney Disease	27
Asthma	18
Osteoperosis	7
Atrial Fibrilation	9
Heart Failure	20
Chronic Obstructive Pulmonary Disease	16
Diabetes	38
Dementia	0
Cancer	15

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Ninh T. Nguyen, MD treated as a general surgeon in Orange, CA during 2016 were minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Ninh T. Nguyen, MD for Medicare patients.

doctor visit	177
gastrointestinal procedures	34
minimally invasive procedures	34

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Ninh T. Nguyen, MD.

**Gender**
Male	62
Female	106

**Ethnicity**
Non-Hispanic White	97
Black	0
Hispanic	19
Asian	36
Other	0
Native American	0

**Age**
From 65 to 74	84
From 75 to 84	43
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Ninh T. Nguyen, MD in 2016

Hypertension	68
High Cholesterol	55
Stroke	0
Ischemic Heart Disease	37
Depression	30
Chronic Kidney Disease	33
Asthma	27
Osteoperosis	10
Atrial Fibrilation	0
Heart Failure	17
Chronic Obstructive Pulmonary Disease	15
Diabetes	33
Dementia	7
Cancer	13

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Ninh T. Nguyen, MD treated as a general surgeon in Orange, CA during 2017 were minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Ninh T. Nguyen, MD for Medicare patients.

doctor visit	138
gastrointestinal procedures	39
minimally invasive procedures	39

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Ninh T. Nguyen, MD.

**Gender**
Male	56
Female	61

**Ethnicity**
Non-Hispanic White	65
Black	0
Hispanic	0
Asian	29
Other	0
Native American	0

**Age**
From 65 to 74	59
From 75 to 84	36
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Ninh T. Nguyen, MD in 2017

Hypertension	66
High Cholesterol	57
Stroke	0
Ischemic Heart Disease	38
Depression	26
Chronic Kidney Disease	34
Asthma	12
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	15
Chronic Obstructive Pulmonary Disease	20
Diabetes	39
Dementia	0
Cancer	12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Ninh T. Nguyen, MD treated as a general surgeon in Orange, CA during 2018 were minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Ninh T. Nguyen, MD for Medicare patients.

doctor visit	137
gastrointestinal procedures	16
minimally invasive procedures	16

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Ninh T. Nguyen, MD.

**Gender**
Male	43
Female	70

**Ethnicity**
Non-Hispanic White	64
Black	0
Hispanic	0
Asian	29
Other	0
Native American	0

**Age**
From 65 to 74	55
From 75 to 84	36
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Ninh T. Nguyen, MD in 2018

Hypertension	65
High Cholesterol	67
Stroke	0
Ischemic Heart Disease	33
Depression	24
Chronic Kidney Disease	35
Asthma	14
Osteoperosis	14
Atrial Fibrilation	0
Heart Failure	15
Chronic Obstructive Pulmonary Disease	13
Diabetes	32
Dementia	11
Cancer	10

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Ninh T. Nguyen, MD treated as a general surgeon in Orange, CA during 2019 were minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Ninh T. Nguyen, MD for Medicare patients.

doctor visit	176
gastrointestinal procedures	44
minimally invasive procedures	44

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Ninh T. Nguyen, MD.

**Gender**
Male	62
Female	71

**Ethnicity**
Non-Hispanic White	86
Black	0
Hispanic	0
Asian	29
Other	0
Native American	0

**Age**
From 65 to 74	65
From 75 to 84	45
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Ninh T. Nguyen, MD in 2019

Hypertension	72
High Cholesterol	68
Stroke	0
Ischemic Heart Disease	35
Depression	28
Chronic Kidney Disease	35
Asthma	14
Osteoperosis	10
Atrial Fibrilation	10
Heart Failure	16
Chronic Obstructive Pulmonary Disease	14
Diabetes	26
Dementia	8
Cancer	0

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Ninh T. Nguyen, MD treated as a general surgeon in Orange, CA during 2020 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Ninh T. Nguyen, MD for Medicare patients.

doctor visit	124
gastrointestinal procedures	45
hospital care	50
inpatient care	50
minimally invasive procedures	45

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Ninh T. Nguyen, MD.

**Gender**
Male	60
Female	61

**Ethnicity**
Non-Hispanic White	74
Black	0
Hispanic	0
Asian	32
Other	0
Native American	0

**Age**
From 65 to 74	67
From 75 to 84	36
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Ninh T. Nguyen, MD in 2020

Hypertension	73
High Cholesterol	71
Stroke	0
Ischemic Heart Disease	38
Depression	25
Chronic Kidney Disease	25
Asthma	16
Osteoperosis	12
Atrial Fibrilation	0
Heart Failure	17
Chronic Obstructive Pulmonary Disease	16
Diabetes	27
Dementia	0
Cancer	15

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Ninh T. Nguyen, MD treated as a general surgeon in Orange, CA during 2021 were minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Ninh T. Nguyen, MD for Medicare patients.

doctor visit	115
gastrointestinal procedures	30
minimally invasive procedures	30

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Ninh T. Nguyen, MD.

**Gender**
Male	50
Female	57

**Ethnicity**
Non-Hispanic White	75
Black	0
Hispanic	0
Asian	20
Other	0
Native American	0

**Age**
From 65 to 74	65
From 75 to 84	29
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Ninh T. Nguyen, MD in 2021

Hypertension	75
High Cholesterol	70
Stroke	0
Ischemic Heart Disease	40
Depression	25
Chronic Kidney Disease	33
Asthma	14
Osteoperosis	12
Atrial Fibrilation	0
Heart Failure	13
Chronic Obstructive Pulmonary Disease	16
Diabetes	24
Dementia	0
Cancer	14

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Ninh T. Nguyen, MD treated as a general surgeon in Orange, CA during 2022 were minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Ninh T. Nguyen, MD for Medicare patients.

doctor visit	80
gastrointestinal procedures	13
minimally invasive procedures	13

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Ninh T. Nguyen, MD.

**Gender**
Male	43
Female	60

**Ethnicity**
Non-Hispanic White	70
Black	0
Hispanic	0
Asian	18
Other	0
Native American	0

**Age**
From 65 to 74	52
From 75 to 84	37
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Ninh T. Nguyen, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	35
Depression	17
Chronic Kidney Disease	21
Asthma	17
Osteoperosis	22
Atrial Fibrilation	15
Heart Failure	16
Chronic Obstructive Pulmonary Disease	19
Diabetes	25
Dementia	0
Cancer	17

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Ninh T. Nguyen, MD for Medicare patients.

The highest averages for the top procedures that Dr. Ninh T. Nguyen, MD treated as a general surgeon in Orange, CA were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

abdominal surgery	15
anastomosis	15
catheterization	15
doctor visit	154
gastrointestinal procedures	32
hospital care	31
inpatient care	31
minimally invasive procedures	32

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Ninh T. Nguyen, MD.

**Gender**
Male	62
Female	77

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	27
Non-Hispanic White	85
Native American / Alaskan Native	0
Hispanic	11
Other	0

**Age**
75 to 84	28
85 and over	0
Less than 65	10
65 to 74	70

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

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

Hypertension	64
High Cholesterol	58
Stroke	0
Ischemic Heart Disease	34
Depression	22
Chronic Kidney Disease	26
Asthma	14
Osteoporosis	9
Heart Failure	15
Chronic Obstructive Pulmonary Disease	15
Diabetes	29
Atrial Fibrillation	5
Dementia	3
Cancer	11

Education & Training

Dr. Ninh T. Nguyen, MD graduated from University of Texas Health Science Center at San Antonio, School of Medicine. He completed residency at Mount Sinai Medical Center of Florida. He is certified by the American Board of Surgery - Surgery (General Surgery) and has a state license in California.

Medical School: University of Texas Health Science Center at San Antonio, School of Medicine

Residency: Mount Sinai Medical Center of Florida

Board Certification: American Board of Surgery - Surgery (General Surgery)

Licensed In: California

Affiliations & Hospitals

Dr. Ninh T. Nguyen, MD is associated with these hospitals and organizations:

UCI Health

UCI Health — Costa Mesa

Ratings & Reviews

Dr. Ninh T. Nguyen, MD has an exceptional overall rating with an average of 4.6 out of 5 stars based on 77 ratings. We collect ratings and reviews of Dr. Ninh T. Nguyen, MD from all over the web to help you find the right in Orange, CA.

4.6

Overall Rating

(77 Ratings)

Leave a Review

General Payments

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

**Payments by Company**
Olympus Corporation of the Americas	$197,580 Olympus Laparoscopic Accessories $61,111	ThunderBeat $37,560	Surgical Endoscopy Products $21,065	Surgical Energy Products $14,192	Olympus Surgical Accessories $13,673	Other $49,979
CONMED Corporation	$81,116 AirSeal $80,985	CONMED Hemostasis $131
Endogastric Solutions, Inc	$67,162 EsophyX $67,162
W. L. Gore & Associates, Inc.	$64,418 SEAMGUARD Bioabsorbable Staple Line Reinforcement $35,189	SEAMGUARD Bioabsorbable Staple $15,112	BIO-A Tissue Reinforcement $10,725	GORE ENFORM Biomaterial $1,180	Product in Development $608	Other $1,604
Novadaq Technologies Inc.	$53,952 LUNA $22,749	PINPOINT $15,843	DERMACELL $15,360
Other	$88,061 Not Applicable $13,757	LigaSure $12,271	Surgical Energy Products $11,706	IONSYS $8,208	ThunderBeat $6,452	Other $35,667

**Types of Payments**
Education	$172,508
Consulting Fee	$130,172
Current or prospective ownership or investment interest	$80,795
Honoraria	$64,765
Travel and Lodging	$54,363
Other	$49,687

Research Payments

Dr. Ninh T. Nguyen, MD has received 1 research payments totaling $10,000.

Biography

Dr. Ninh Nguyen's areas of specialization are general practice and general surgery. Patient reviews placed Dr. Nguyen at an average of 4.5 stars (out of 5). His areas of expertise include the following: cancer surgery, laparoscopic heller myotomy, and gastrointestinal cancer. He is affiliated with UCI Health. Dr. Nguyen's practice in Orange, CA is open to new patients as reported by Yext. He is a graduate of the University of Texas Health Science Center at San Antonio, School of Medicine. His residency was performed at Mount Sinai Medical Center of Florida. He has received distinctions including Southern California Super Doctors; Southern California Super Doctors 2008; and Physicians of Excellence, Orange County Medical Association. In addition to English, Dr. Nguyen speaks Vietnamese.