In 2023, Dr. Paul Soojin Chang, MD had a list price for creatinine test, creatinine urine test, kidney function tests, microalbumin test, microalbumin urine test, and urinalysis that was lower than the list prices billed to Medicare by 95% 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 10%

By Affordability:

albumin test

lab tests

urine tests

In 2023, Dr. Paul Soojin Chang, MD had a list price for albumin test, lab tests, and urine tests 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:

lab tests

major joint aspiration

major joint injection

microalbumin urine test

By Affordability:

cardiac imaging

color Doppler echocardiography

Doppler echocardiography

echocardiogram

spectral Doppler echocardiography

transthoracic echocardiography

In 2012, among providers in related specialties within California, Dr. Paul Soojin Chang, MD performed more lab tests, major joint aspiration, major joint injection, and microalbumin urine test procedures for Medicare patients than 75% of them and he also had a list price for cardiac imaging, color Doppler echocardiography, Doppler echocardiography, echocardiogram (echo), spectral Doppler echocardiography, and transthoracic echocardiography (TTE) 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. Paul Soojin Chang, MD treated as an internist in Buena Park, CA during 2012 were blood draw, lab tests, preventive care and vaccines.

Volume of procedures performed by Dr. Paul Soojin Chang, MD for Medicare patients.

abdominal imaging	117
aspiration	99
blood draw	1367
cardiac procedures	62
diabetes management	170
doctor visit	2261
injections	99
lab tests	786
musculoskeletal imaging	32
preventive care	402
stress testing	15
thoracic (chest) imaging	68
ultrasound (sonogram)	177
vaccines	366
vascular procedures	13
X-rays	100

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Paul Soojin Chang, MD treated as an internist in Buena Park, CA during 2013 were blood draw, lab tests, preventive care and vaccines.

Volume of procedures performed by Dr. Paul Soojin Chang, MD for Medicare patients.

abdominal imaging	117
aspiration	113
blood draw	982
cardiac procedures	56
diabetes management	16
doctor visit	2290
injections	113
lab tests	702
musculoskeletal imaging	51
preventive care	398
stress testing	29
thoracic (chest) imaging	55
ultrasound (sonogram)	163
vaccines	398
vascular procedures	48
X-rays	106

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Paul Soojin Chang, MD.

**Gender**
Male	206
Female	299

**Ethnicity**
Non-Hispanic White	13
Black	0
Hispanic	32
Asian	433
Other	27
Native American	0

**Age**
From 65 to 74	258
From 75 to 84	195
85 and over	39
Less than 65	13

Conditions of Medicare patients treated by Dr. Paul Soojin Chang, MD in 2013

Hypertension	75
High Cholesterol	75
Stroke	3
Ischemic Heart Disease	39
Depression	6
Chronic Kidney Disease	56
Asthma	4
Osteoperosis	9
Atrial Fibrilation	4
Heart Failure	12
Chronic Obstructive Pulmonary Disease	10
Diabetes	57
Dementia	10
Cancer	7

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Paul Soojin Chang, MD treated as an internist in Buena Park, CA during 2014 were lab tests, preventive care, vaccines and ultrasound (sonogram).

Volume of procedures performed by Dr. Paul Soojin Chang, MD for Medicare patients.

abdominal imaging	98
blood draw	112
cardiac procedures	20
doctor visit	2047
lab tests	515
musculoskeletal imaging	66
preventive care	357
thoracic (chest) imaging	33
ultrasound (sonogram)	152
vaccines	357
vascular procedures	34
X-rays	99

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Paul Soojin Chang, MD.

**Gender**
Male	186
Female	297

**Ethnicity**
Non-Hispanic White	14
Black	0
Hispanic	31
Asian	411
Other	27
Native American	0

**Age**
From 65 to 74	241
From 75 to 84	181
85 and over	44
Less than 65	17

Conditions of Medicare patients treated by Dr. Paul Soojin Chang, MD in 2014

Hypertension	72
High Cholesterol	75
Stroke	3
Ischemic Heart Disease	31
Depression	11
Chronic Kidney Disease	53
Asthma	4
Osteoperosis	7
Atrial Fibrilation	4
Heart Failure	11
Chronic Obstructive Pulmonary Disease	10
Diabetes	56
Dementia	9
Cancer	6

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Paul Soojin Chang, MD treated as an internist in Buena Park, CA during 2015 were lab tests, preventive care, vaccines and ultrasound (sonogram).

Volume of procedures performed by Dr. Paul Soojin Chang, MD for Medicare patients.

abdominal imaging	110
aspiration	87
blood draw	23
cardiac procedures	27
diagnostic procedures	11
doctor visit	2205
ear procedures	11
injections	87
lab tests	538
musculoskeletal imaging	64
preventive care	418
ultrasound (sonogram)	152
vaccines	418
vascular procedures	15
X-rays	64

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Paul Soojin Chang, MD.

**Gender**
Male	394
Female	656

**Ethnicity**
Non-Hispanic White	24
Black	0
Hispanic	56
Asian	916
Other	54
Native American	0

**Age**
From 65 to 74	484
From 75 to 84	416
85 and over	116
Less than 65	34

Conditions of Medicare patients treated by Dr. Paul Soojin Chang, MD in 2015

Hypertension	72
High Cholesterol	75
Stroke	2
Ischemic Heart Disease	32
Depression	12
Chronic Kidney Disease	50
Asthma	5
Osteoperosis	9
Atrial Fibrilation	4
Heart Failure	13
Chronic Obstructive Pulmonary Disease	12
Diabetes	54
Dementia	11
Cancer	5

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Paul Soojin Chang, MD treated as an internist in Buena Park, CA during 2016 were preventive care, vaccines, lab tests and ultrasound (sonogram).

Volume of procedures performed by Dr. Paul Soojin Chang, MD for Medicare patients.

abdominal imaging	174
blood draw	107
doctor visit	2210
lab tests	527
musculoskeletal imaging	99
neck imaging	12
preventive care	560
ultrasound (sonogram)	207
vaccines	560
vascular procedures	21
X-rays	99

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Paul Soojin Chang, MD.

**Gender**
Male	212
Female	329

**Ethnicity**
Non-Hispanic White	13
Black	0
Hispanic	28
Asian	469
Other	31
Native American	0

**Age**
From 65 to 74	224
From 75 to 84	225
85 and over	74
Less than 65	18

Conditions of Medicare patients treated by Dr. Paul Soojin Chang, MD in 2016

Hypertension	71
High Cholesterol	75
Stroke	3
Ischemic Heart Disease	29
Depression	17
Chronic Kidney Disease	47
Asthma	12
Osteoperosis	7
Atrial Fibrilation	5
Heart Failure	13
Chronic Obstructive Pulmonary Disease	12
Diabetes	56
Dementia	12
Cancer	7

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Paul Soojin Chang, MD treated as an internist in Buena Park, CA during 2017 were lab tests, preventive care, vaccines and ultrasound (sonogram).

Volume of procedures performed by Dr. Paul Soojin Chang, MD for Medicare patients.

abdominal imaging	88
aspiration	85
blood draw	19
doctor visit	1682
injections	85
lab tests	336
musculoskeletal imaging	34
preventive care	283
ultrasound (sonogram)	88
vaccines	283
X-rays	34

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Paul Soojin Chang, MD.

**Gender**
Male	206
Female	307

**Ethnicity**
Non-Hispanic White	18
Black	0
Hispanic	19
Asian	446
Other	30
Native American	0

**Age**
From 65 to 74	198
From 75 to 84	238
85 and over	66
Less than 65	11

Conditions of Medicare patients treated by Dr. Paul Soojin Chang, MD in 2017

Hypertension	73
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	30
Depression	20
Chronic Kidney Disease	44
Asthma	0
Osteoperosis	6
Atrial Fibrilation	5
Heart Failure	12
Chronic Obstructive Pulmonary Disease	12
Diabetes	56
Dementia	11
Cancer	7

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Paul Soojin Chang, MD treated as an internist in Buena Park, CA during 2018 were lab tests, preventive care, vaccines and ultrasound (sonogram).

Volume of procedures performed by Dr. Paul Soojin Chang, MD for Medicare patients.

abdominal imaging	75
aspiration	57
cardiac procedures	19
doctor visit	1774
injections	57
lab tests	295
musculoskeletal imaging	19
preventive care	273
ultrasound (sonogram)	107
vaccines	273
vascular procedures	13
X-rays	19

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Paul Soojin Chang, MD.

**Gender**
Male	189
Female	298

**Ethnicity**
Non-Hispanic White	16
Black	0
Hispanic	22
Asian	420
Other	29
Native American	0

**Age**
From 65 to 74	169
From 75 to 84	238
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Paul Soojin Chang, MD in 2018

Hypertension	74
High Cholesterol	75
Stroke	3
Ischemic Heart Disease	29
Depression	25
Chronic Kidney Disease	40
Asthma	0
Osteoperosis	9
Atrial Fibrilation	4
Heart Failure	13
Chronic Obstructive Pulmonary Disease	13
Diabetes	55
Dementia	13
Cancer	6

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Paul Soojin Chang, MD treated as an internist in Buena Park, CA during 2019 were lab tests, preventive care, vaccines and ultrasound (sonogram).

Volume of procedures performed by Dr. Paul Soojin Chang, MD for Medicare patients.

abdominal imaging	83
aspiration	82
cardiac procedures	44
doctor visit	1879
injections	82
lab tests	250
preventive care	203
ultrasound (sonogram)	139
vaccines	203
vascular procedures	12

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Paul Soojin Chang, MD.

**Gender**
Male	0
Female	288

**Ethnicity**
Non-Hispanic White	14
Black	0
Hispanic	20
Asian	412
Other	26
Native American	0

**Age**
From 65 to 74	158
From 75 to 84	233
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Paul Soojin Chang, MD in 2019

Hypertension	75
High Cholesterol	75
Stroke	2
Ischemic Heart Disease	31
Depression	28
Chronic Kidney Disease	41
Asthma	0
Osteoperosis	12
Atrial Fibrilation	7
Heart Failure	18
Chronic Obstructive Pulmonary Disease	14
Diabetes	54
Dementia	14
Cancer	8

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Paul Soojin Chang, MD treated as an internist in Buena Park, CA during 2020 were lab tests, ultrasound (sonogram), aspiration and injections.

Volume of procedures performed by Dr. Paul Soojin Chang, MD for Medicare patients.

abdominal imaging	65
aspiration	82
cardiac procedures	23
doctor visit	1309
injections	82
lab tests	227
preventive care	29
ultrasound (sonogram)	88
vaccines	29

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Paul Soojin Chang, MD.

**Gender**
Male	171
Female	270

**Ethnicity**
Non-Hispanic White	13
Black	0
Hispanic	20
Asian	386
Other	22
Native American	0

**Age**
From 65 to 74	148
From 75 to 84	218
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Paul Soojin Chang, MD in 2020

Hypertension	71
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	27
Depression	20
Chronic Kidney Disease	40
Asthma	0
Osteoperosis	11
Atrial Fibrilation	5
Heart Failure	20
Chronic Obstructive Pulmonary Disease	8
Diabetes	54
Dementia	14
Cancer	7

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Paul Soojin Chang, MD treated as an internist in Buena Park, CA during 2021 were lab tests, aspiration, injections and ultrasound (sonogram).

Volume of procedures performed by Dr. Paul Soojin Chang, MD for Medicare patients.

abdominal imaging	80
aspiration	124
cardiac procedures	21
doctor visit	1329
injections	124
lab tests	223
ultrasound (sonogram)	101

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Paul Soojin Chang, MD.

**Gender**
Male	165
Female	280

**Ethnicity**
Non-Hispanic White	15
Black	0
Hispanic	17
Asian	390
Other	23
Native American	0

**Age**
From 65 to 74	147
From 75 to 84	208
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Paul Soojin Chang, MD in 2021

Hypertension	71
High Cholesterol	75
Stroke	2
Ischemic Heart Disease	26
Depression	23
Chronic Kidney Disease	39
Asthma	0
Osteoperosis	13
Atrial Fibrilation	6
Heart Failure	20
Chronic Obstructive Pulmonary Disease	7
Diabetes	50
Dementia	14
Cancer	8

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Paul Soojin Chang, MD treated as an internist in Buena Park, CA during 2022 were lab tests, aspiration, injections and ultrasound (sonogram).

Volume of procedures performed by Dr. Paul Soojin Chang, MD for Medicare patients.

abdominal imaging	80
aspiration	118
cardiac procedures	31
doctor visit	1285
injections	118
lab tests	243
ultrasound (sonogram)	111

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Paul Soojin Chang, MD.

**Gender**
Male	158
Female	279

**Ethnicity**
Non-Hispanic White	14
Black	0
Hispanic	16
Asian	385
Other	22
Native American	0

**Age**
From 65 to 74	137
From 75 to 84	200
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Paul Soojin Chang, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	3
Ischemic Heart Disease	17
Depression	33
Chronic Kidney Disease	35
Asthma	0
Osteoperosis	21
Atrial Fibrilation	11
Heart Failure	17
Chronic Obstructive Pulmonary Disease	14
Diabetes	48
Dementia	14
Cancer	11

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Paul Soojin Chang, MD treated as an internist in Buena Park, CA during 2023 were lab tests, aspiration, injections and ultrasound (sonogram).

Volume of procedures performed by Dr. Paul Soojin Chang, MD for Medicare patients.

abdominal imaging	75
aspiration	120
cardiac procedures	29
doctor visit	1175
injections	120
lab tests	193
ultrasound (sonogram)	104

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Paul Soojin Chang, MD.

**Gender**
Male	145
Female	253

**Ethnicity**
Non-Hispanic White	15
Black	0
Hispanic	13
Asian	350
Other	20
Native American	0

**Age**
From 65 to 74	117
From 75 to 84	184
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Paul Soojin Chang, MD in 2023

Hypertension	75
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	17
Depression	39
Chronic Kidney Disease	37
Asthma	3
Osteoperosis	22
Atrial Fibrilation	12
Heart Failure	24
Chronic Obstructive Pulmonary Disease	19
Diabetes	49
Dementia	17
Cancer	11

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Paul Soojin Chang, MD for Medicare patients.

The highest averages for the top procedures that Dr. Paul Soojin Chang, MD treated as an internist in Buena Park, CA were blood draw, lab tests, preventive care and vaccines.

abdominal imaging	96
aspiration	96
blood draw	435
cardiac procedures	33
diabetes management	93
diagnostic procedures	11
doctor visit	1787
ear procedures	11
injections	96
lab tests	402
musculoskeletal imaging	52
neck imaging	12
preventive care	324
stress testing	22
thoracic (chest) imaging	52
ultrasound (sonogram)	132
vaccines	320
vascular procedures	22
X-rays	74

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Paul Soojin Chang, MD.

**Gender**
Male	169
Female	296

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	418
Non-Hispanic White	14
Hispanic	22
Native American / Alaskan Native	0
Other	25

**Age**
75 to 84	211
85 and over	28
Less than 65	7
65 to 74	190

Average of Total of Conditions of Medicare patients treated by Dr. Paul Soojin Chang, MD From 2012 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. Paul Soojin Chang, MD treated were high cholesterol, hypertension, diabetes and chronic kidney disease.

Hypertension	67
High Cholesterol	68
Stroke	2
Ischemic Heart Disease	25
Depression	19
Chronic Kidney Disease	40
Asthma	2
Osteoporosis	10
Heart Failure	14
Chronic Obstructive Pulmonary Disease	10
Diabetes	49
Atrial Fibrillation	5
Cancer	6
Dementia	11

Education & Training

He has a state license in California.

Licensed In: California

Ratings & Reviews

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General Payments

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

**Payments by Company**
Gilead Sciences Inc	$58,191 Viread $32,079	Vemlidy $13,835	Sovaldi $1,850	$10,427
Gilead Sciences, Inc.	$37,179 Vemlidy $35,509	Epclusa $122	$1,549
Edwards Lifesciences Corporation	$8,800 Pericardial Heart Valves $4,400	Carpentier-Edwards Physio Annuloplasty Ring $2,200	$2,200
AstraZeneca Pharmaceuticals LP	$3,468 FARXIGA $1,711	SYMBICORT $626	BYDUREON $250	BREZTRI $188	CRESTOR $117	Other $575
Amgen Inc.	$3,442 Repatha $1,938	Prolia $1,131	EVENITY $373
Other	$35,421 Creon $3,111	JARDIANCE $2,035	XARELTO $1,826	Vascepa $1,306	LINZESS $1,282	Other $25,861

**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	$70,990
Food and Beverage	$49,546
Consulting Fee	$16,800
Honoraria	$4,500
Travel and Lodging	$4,407
Other	$258