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Dr. James Quan-Yu Hwang, MD

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Specializes in: Emergency Medicine

University of Pittsburgh School of Medicine (2002)

9888 Genesee Avenue
La Jolla, CA 92037

(858) 824-6742

Dr. James Quan-Yu Hwang, MD is an emergency medicine doctor in La Jolla, CA specializing in emergency medicine. He graduated from University of Pittsburgh School of Medicine in 2002 and has 24 years of experience. Dr. James Quan-Yu Hwang, MD is affiliated with Scripps Memorial Hospital La Jolla and Scripps Health.

Office Locations

Scripps Health

9888 Genesee Avenue
La Jolla, CA 92037

(858) 824-6742

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Noteworthy Medicare Patient Procedures Performed by Dr. James Quan-Yu Hwang, MD in 2023

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

Top 5%

By Volume:

transthoracic echocardiography

ultrasound

In 2023, Dr. James Quan-Yu Hwang, MD performed more transthoracic echocardiography (TTE), and ultrasound (sonogram) procedures for Medicare patients than 95% of providers in related specialties within California.

Top 10%

By Volume:

chest ultrasound

In 2023, Dr. James Quan-Yu Hwang, MD performed more chest ultrasound procedures for Medicare patients than 90% of providers in related specialties within California.

Top 25%

By Volume:

emergency room care

By Affordability:

chest ultrasound

thoracic imaging

In 2012, among providers in related specialties within California, Dr. James Quan-Yu Hwang, MD performed more emergency room (ER) care procedures for Medicare patients than 75% of them and he also had a list price for chest ultrasound, and thoracic (chest) imaging 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. James Quan-Yu Hwang, MD treated as an emergency medicine doctor in La Jolla, CA during 2012 were emergency care, X-rays, thoracic (chest) imaging and musculoskeletal imaging.

Volume of procedures performed by Dr. James Quan-Yu Hwang, MD for Medicare patients.

catheterization	14
emergency care	519
hip imaging	14
musculoskeletal imaging	26
thoracic (chest) imaging	93
X-rays	119

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. James Quan-Yu Hwang, MD treated as an emergency medicine doctor in La Jolla, CA during 2013 were emergency care, X-rays, thoracic (chest) imaging and musculoskeletal imaging.

Volume of procedures performed by Dr. James Quan-Yu Hwang, MD for Medicare patients.

catheterization	16
emergency care	477
hip imaging	17
minor procedures	11
musculoskeletal imaging	42
pelvic imaging	23
thoracic (chest) imaging	138
wound repair (e.g. stitches)	11
X-rays	203

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. James Quan-Yu Hwang, MD.

**Gender**
Male	274
Female	325

**Ethnicity**
Non-Hispanic White	493
Black	14
Hispanic	42
Asian	38
Other	0
Native American	0

**Age**
From 65 to 74	177
From 75 to 84	181
85 and over	170
Less than 65	71

Conditions of Medicare patients treated by Dr. James Quan-Yu Hwang, MD in 2013

Hypertension	75
High Cholesterol	53
Stroke	13
Ischemic Heart Disease	56
Depression	31
Chronic Kidney Disease	38
Asthma	10
Osteoperosis	12
Atrial Fibrilation	24
Heart Failure	38
Chronic Obstructive Pulmonary Disease	26
Diabetes	30
Dementia	27
Cancer	15

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. James Quan-Yu Hwang, MD treated as an emergency medicine doctor in La Jolla, CA during 2014 were emergency care, X-rays, thoracic (chest) imaging and catheterization.

Volume of procedures performed by Dr. James Quan-Yu Hwang, MD for Medicare patients.

catheterization	12
emergency care	425
thoracic (chest) imaging	81
X-rays	81

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. James Quan-Yu Hwang, MD.

**Gender**
Male	217
Female	315

**Ethnicity**
Non-Hispanic White	436
Black	0
Hispanic	38
Asian	30
Other	16
Native American	0

**Age**
From 65 to 74	147
From 75 to 84	145
85 and over	167
Less than 65	73

Conditions of Medicare patients treated by Dr. James Quan-Yu Hwang, MD in 2014

Hypertension	75
High Cholesterol	52
Stroke	11
Ischemic Heart Disease	53
Depression	33
Chronic Kidney Disease	39
Asthma	10
Osteoperosis	11
Atrial Fibrilation	25
Heart Failure	36
Chronic Obstructive Pulmonary Disease	21
Diabetes	28
Dementia	22
Cancer	15

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. James Quan-Yu Hwang, MD treated as an emergency medicine doctor in La Jolla, CA during 2015 were emergency care, X-rays and thoracic (chest) imaging.

Volume of procedures performed by Dr. James Quan-Yu Hwang, MD for Medicare patients.

emergency care	565
thoracic (chest) imaging	65
X-rays	65

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. James Quan-Yu Hwang, MD.

**Gender**
Male	536
Female	726

**Ethnicity**
Non-Hispanic White	1048
Black	0
Hispanic	88
Asian	76
Other	26
Native American	0

**Age**
From 65 to 74	374
From 75 to 84	372
85 and over	382
Less than 65	134

Conditions of Medicare patients treated by Dr. James Quan-Yu Hwang, MD in 2015

Hypertension	75
High Cholesterol	59
Stroke	12
Ischemic Heart Disease	49
Depression	35
Chronic Kidney Disease	39
Asthma	16
Osteoperosis	17
Atrial Fibrilation	27
Heart Failure	34
Chronic Obstructive Pulmonary Disease	22
Diabetes	27
Dementia	26
Cancer	15

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. James Quan-Yu Hwang, MD treated as an emergency medicine doctor in La Jolla, CA during 2016 were emergency care, X-rays, thoracic (chest) imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. James Quan-Yu Hwang, MD for Medicare patients.

cardiac procedures	16
emergency care	555
thoracic (chest) imaging	137
ultrasound (sonogram)	16
X-rays	137

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. James Quan-Yu Hwang, MD.

**Gender**
Male	262
Female	354

**Ethnicity**
Non-Hispanic White	530
Black	14
Hispanic	31
Asian	26
Other	15
Native American	0

**Age**
From 65 to 74	178
From 75 to 84	164
85 and over	210
Less than 65	64

Conditions of Medicare patients treated by Dr. James Quan-Yu Hwang, MD in 2016

Hypertension	75
High Cholesterol	62
Stroke	13
Ischemic Heart Disease	51
Depression	35
Chronic Kidney Disease	43
Asthma	25
Osteoperosis	15
Atrial Fibrilation	25
Heart Failure	36
Chronic Obstructive Pulmonary Disease	23
Diabetes	28
Dementia	28
Cancer	15

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. James Quan-Yu Hwang, MD treated as an emergency medicine doctor in La Jolla, CA during 2017 were emergency care, X-rays, thoracic (chest) imaging and ultrasound (sonogram).

Volume of procedures performed by Dr. James Quan-Yu Hwang, MD for Medicare patients.

abdominal imaging	11
cardiac procedures	53
catheterization	26
emergency care	625
hospital care	11
outpatient care	11
thoracic (chest) imaging	126
ultrasound (sonogram)	64
X-rays	126

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. James Quan-Yu Hwang, MD.

**Gender**
Male	336
Female	422

**Ethnicity**
Non-Hispanic White	618
Black	21
Hispanic	58
Asian	38
Other	23
Native American	0

**Age**
From 65 to 74	222
From 75 to 84	238
85 and over	216
Less than 65	82

Conditions of Medicare patients treated by Dr. James Quan-Yu Hwang, MD in 2017

Hypertension	75
High Cholesterol	61
Stroke	10
Ischemic Heart Disease	53
Depression	37
Chronic Kidney Disease	44
Asthma	11
Osteoperosis	14
Atrial Fibrilation	28
Heart Failure	35
Chronic Obstructive Pulmonary Disease	25
Diabetes	30
Dementia	24
Cancer	17

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. James Quan-Yu Hwang, MD treated as an emergency medicine doctor in La Jolla, CA during 2018 were emergency care, ultrasound (sonogram), cardiac procedures and blood draw.

Volume of procedures performed by Dr. James Quan-Yu Hwang, MD for Medicare patients.

blood draw	18
cardiac procedures	125
catheterization	13
emergency care	617
hospital care	12
outpatient care	12
tracheal (windpipe) procedures	12
ultrasound (sonogram)	125

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. James Quan-Yu Hwang, MD.

**Gender**
Male	336
Female	404

**Ethnicity**
Non-Hispanic White	596
Black	0
Hispanic	51
Asian	47
Other	28
Native American	0

**Age**
From 65 to 74	199
From 75 to 84	248
85 and over	233
Less than 65	60

Conditions of Medicare patients treated by Dr. James Quan-Yu Hwang, MD in 2018

Hypertension	75
High Cholesterol	63
Stroke	12
Ischemic Heart Disease	54
Depression	36
Chronic Kidney Disease	46
Asthma	9
Osteoperosis	15
Atrial Fibrilation	31
Heart Failure	39
Chronic Obstructive Pulmonary Disease	22
Diabetes	29
Dementia	28
Cancer	16

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. James Quan-Yu Hwang, MD treated as an emergency medicine doctor in La Jolla, CA during 2019 were emergency care, ultrasound (sonogram), cardiac procedures and outpatient care.

Volume of procedures performed by Dr. James Quan-Yu Hwang, MD for Medicare patients.

abdominal imaging	31
blood draw	28
cardiac procedures	173
emergency care	657
hospital care	99
outpatient care	99
pelvic imaging	18
ultrasound (sonogram)	222

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. James Quan-Yu Hwang, MD.

**Gender**
Male	352
Female	453

**Ethnicity**
Non-Hispanic White	643
Black	24
Hispanic	60
Asian	53
Other	0
Native American	0

**Age**
From 65 to 74	236
From 75 to 84	257
85 and over	254
Less than 65	58

Conditions of Medicare patients treated by Dr. James Quan-Yu Hwang, MD in 2019

Hypertension	75
High Cholesterol	64
Stroke	12
Ischemic Heart Disease	52
Depression	35
Chronic Kidney Disease	47
Asthma	9
Osteoperosis	17
Atrial Fibrilation	30
Heart Failure	39
Chronic Obstructive Pulmonary Disease	23
Diabetes	32
Dementia	27
Cancer	15

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. James Quan-Yu Hwang, MD treated as an emergency medicine doctor in La Jolla, CA during 2020 were emergency care, ultrasound (sonogram), cardiac procedures and outpatient care.

Volume of procedures performed by Dr. James Quan-Yu Hwang, MD for Medicare patients.

abdominal imaging	28
blood draw	42
cardiac procedures	175
catheterization	23
emergency care	600
hospital care	64
outpatient care	64
thoracic (chest) imaging	35
ultrasound (sonogram)	238

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. James Quan-Yu Hwang, MD.

**Gender**
Male	308
Female	410

**Ethnicity**
Non-Hispanic White	584
Black	16
Hispanic	54
Asian	38
Other	26
Native American	0

**Age**
From 65 to 74	219
From 75 to 84	262
85 and over	171
Less than 65	66

Conditions of Medicare patients treated by Dr. James Quan-Yu Hwang, MD in 2020

Hypertension	75
High Cholesterol	66
Stroke	11
Ischemic Heart Disease	52
Depression	38
Chronic Kidney Disease	45
Asthma	9
Osteoperosis	15
Atrial Fibrilation	27
Heart Failure	36
Chronic Obstructive Pulmonary Disease	20
Diabetes	31
Dementia	25
Cancer	13

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. James Quan-Yu Hwang, MD treated as an emergency medicine doctor in La Jolla, CA during 2021 were emergency care, ultrasound (sonogram), cardiac procedures and thoracic (chest) imaging.

Volume of procedures performed by Dr. James Quan-Yu Hwang, MD for Medicare patients.

abdominal imaging	39
blood draw	11
cardiac procedures	193
catheterization	16
emergency care	617
hospital care	57
outpatient care	57
thoracic (chest) imaging	58
ultrasound (sonogram)	290

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. James Quan-Yu Hwang, MD.

**Gender**
Male	343
Female	409

**Ethnicity**
Non-Hispanic White	610
Black	0
Hispanic	49
Asian	47
Other	29
Native American	0

**Age**
From 65 to 74	212
From 75 to 84	257
85 and over	233
Less than 65	50

Conditions of Medicare patients treated by Dr. James Quan-Yu Hwang, MD in 2021

Hypertension	75
High Cholesterol	71
Stroke	13
Ischemic Heart Disease	52
Depression	36
Chronic Kidney Disease	44
Asthma	8
Osteoperosis	18
Atrial Fibrilation	30
Heart Failure	37
Chronic Obstructive Pulmonary Disease	18
Diabetes	29
Dementia	26
Cancer	16

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. James Quan-Yu Hwang, MD treated as an emergency medicine doctor in La Jolla, CA during 2022 were emergency care, ultrasound (sonogram), cardiac procedures and thoracic (chest) imaging.

Volume of procedures performed by Dr. James Quan-Yu Hwang, MD for Medicare patients.

abdominal imaging	32
blood draw	16
cardiac procedures	241
catheterization	11
emergency care	565
hospital care	29
outpatient care	29
thoracic (chest) imaging	122
ultrasound (sonogram)	395

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. James Quan-Yu Hwang, MD.

**Gender**
Male	329
Female	441

**Ethnicity**
Non-Hispanic White	597
Black	0
Hispanic	57
Asian	53
Other	37
Native American	0

**Age**
From 65 to 74	227
From 75 to 84	304
85 and over	195
Less than 65	44

Conditions of Medicare patients treated by Dr. James Quan-Yu Hwang, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	18
Ischemic Heart Disease	39
Depression	31
Chronic Kidney Disease	33
Asthma	15
Osteoperosis	25
Atrial Fibrilation	38
Heart Failure	33
Chronic Obstructive Pulmonary Disease	20
Diabetes	31
Dementia	16
Cancer	18

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. James Quan-Yu Hwang, MD for Medicare patients.

The highest averages for the top procedures that Dr. James Quan-Yu Hwang, MD treated as an emergency medicine doctor in La Jolla, CA were emergency care, ultrasound (sonogram), cardiac procedures and X-rays.

abdominal imaging	28
blood draw	23
cardiac procedures	139
catheterization	16
emergency care	565
hip imaging	15
hospital care	45
minor procedures	11
musculoskeletal imaging	34
outpatient care	45
pelvic imaging	20
thoracic (chest) imaging	95
tracheal (windpipe) procedures	12
ultrasound (sonogram)	192
wound repair (e.g. stitches)	11
X-rays	121

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. James Quan-Yu Hwang, MD.

**Gender**
Male	299
Female	387

**Ethnicity**
Black / African American	8
Asian / Pacific Islander	40
Non-Hispanic White	559
Native American / Alaskan Native	0
Hispanic	48
Other	18

**Age**
75 to 84	220
85 and over	202
Less than 65	63
65 to 74	199

Average of Total of Conditions of Medicare patients treated by Dr. James Quan-Yu Hwang, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. James Quan-Yu Hwang, MD treated were hypertension, high cholesterol, ischemic heart disease and chronic kidney disease.

Hypertension	68
High Cholesterol	56
Stroke	11
Ischemic Heart Disease	46
Depression	31
Chronic Kidney Disease	38
Asthma	11
Osteoporosis	14
Heart Failure	33
Chronic Obstructive Pulmonary Disease	20
Diabetes	26
Atrial Fibrillation	25
Dementia	22
Cancer	14

Education & Training

Dr. James Quan-Yu Hwang, MD graduated from University of Pittsburgh School of Medicine in 2002. He completed residency at University of California, San Diego (UCSD) Affiliated Hospitals. He is certified by the American Board of Emergency Medicine and has a state license in California.

Medical School: University of Pittsburgh School of Medicine (2002)

Residency: University of California, San Diego (UCSD) Affiliated Hospitals (2006)

Board Certification: American Board of Emergency Medicine (2007)

Licensed In: California

Affiliations & Hospitals

Dr. James Quan-Yu Hwang, MD is associated with these hospitals and organizations:

Scripps Memorial Hospital La Jolla

Scripps Health

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General Payments

These charts describe general payments received by Dr. James Quan-Yu Hwang, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
BioFire Diagnostics, LLC	$300 BioFire FilmArray $300
Mindray DS USA, Inc.	$127 Ultrasound Equipment $127
FUJIFILM SonoSite, Inc.	$50 X-Porte Ultrasound System $50
ABIOMED	$50 Impella $50
Abbott Laboratories	$37 Confirm Rx $37

**Types of Payments**
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$300
Food and Beverage	$264

Biography

Dr. James Hwang sees patients in La Jolla, CA. His medical specialty is emergency medicine. He is affiliated with Scripps Memorial Hospital La Jolla. Dr. Hwang graduated from the University of Pittsburgh School of Medicine. He trained at a hospital affiliated with the University of California, San Diego (UCSD) for his residency. He is conversant in Mandarin.