Procedure Volume Patient Data Patient Conditions Reviews General Payments Back to Top

Home > CA Providers

Dr. Chang S. Joo, MD

Accepting New Patients

(No ratings)

Specializes in: Adult Nephrology

Yale School of Medicine

Professional interests include: hypertension (high blood pressure), electrolyte disorders

981 E. Tuolumne Avenue
Turlock, CA 95382

(209) 632-7746

Dr. Chang S. Joo, MD is a nephrologist in Oakdale, CA specializing in adult nephrology. He graduated from Yale School of Medicine. Dr. Chang S. Joo, MD is affiliated with Sutter Health, Central Valley Medical Group and MODESTO KIDNEY MEDICAL GROUP.

Office Locations

Central Valley Medical Group

1390 West "h" Street Suite A
Oakdale, CA 95361

(209) 526-1677

open_in_new

Central Valley Medical Group

1700 Keystone Pacific Pkway Suite A2
Patterson, CA 95363

(209) 892-0615

(209) 892-0621

open_in_new

305 E Granger Avenue Suite 202
Modesto, CA 95350

open_in_new

Central Valley Medical Group

981 E. Tuolumne Avenue
Turlock, CA 95382

(209) 632-7746

open_in_new

Noteworthy Medicare Patient Procedures Performed by Dr. Chang S. Joo, MD in 2023

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

Top 5%

By Affordability:

hemodialysis

hospital care

inpatient care

inpatient hospital care

In 2023, Dr. Chang S. Joo, MD had a list price for hemodialysis, hospital care, inpatient care, and inpatient hospital care (for patient admitted to hospital) 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:

lab tests

In 2023, Dr. Chang S. Joo, MD had a list price for lab 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 Affordability:

urinalysis

urine tests

In 2012, Dr. Chang S. Joo, MD had a list price for urinalysis, and urine tests that was lower than the list prices billed to Medicare by 75% 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.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Chang S. Joo, MD treated as a nephrologist in Oakdale, CA during 2012 were hospital care, inpatient care, dialysis and lab tests.

Volume of procedures performed by Dr. Chang S. Joo, MD for Medicare patients.

dialysis	310
doctor visit	669
hospital care	560
inpatient care	560
lab tests	38

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Chang S. Joo, MD treated as a nephrologist in Oakdale, CA during 2013 were hospital care, inpatient care, dialysis and lab tests.

Volume of procedures performed by Dr. Chang S. Joo, MD for Medicare patients.

dialysis	314
doctor visit	649
hospital care	618
inpatient care	618
lab tests	39

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Chang S. Joo, MD.

**Gender**
Male	205
Female	241

**Ethnicity**
Non-Hispanic White	271
Black	22
Hispanic	114
Asian	28
Other	0
Native American	0

**Age**
From 65 to 74	151
From 75 to 84	127
85 and over	68
Less than 65	100

Conditions of Medicare patients treated by Dr. Chang S. Joo, MD in 2013

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	59
Depression	19
Chronic Kidney Disease	75
Asthma	8
Osteoperosis	8
Atrial Fibrilation	18
Heart Failure	44
Chronic Obstructive Pulmonary Disease	22
Diabetes	63
Dementia	11
Cancer	10

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Chang S. Joo, MD treated as a nephrologist in Oakdale, CA during 2014 were hospital care, inpatient care, dialysis and lab tests.

Volume of procedures performed by Dr. Chang S. Joo, MD for Medicare patients.

dialysis	167
doctor visit	653
hospital care	468
inpatient care	468
lab tests	56

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Chang S. Joo, MD.

**Gender**
Male	230
Female	266

**Ethnicity**
Non-Hispanic White	285
Black	21
Hispanic	137
Asian	37
Other	0
Native American	0

**Age**
From 65 to 74	189
From 75 to 84	142
85 and over	64
Less than 65	101

Conditions of Medicare patients treated by Dr. Chang S. Joo, MD in 2014

Hypertension	75
High Cholesterol	75
Stroke	10
Ischemic Heart Disease	58
Depression	21
Chronic Kidney Disease	75
Asthma	8
Osteoperosis	7
Atrial Fibrilation	18
Heart Failure	46
Chronic Obstructive Pulmonary Disease	20
Diabetes	65
Dementia	13
Cancer	10

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Chang S. Joo, MD treated as a nephrologist in Oakdale, CA during 2015 were hospital care, inpatient care, dialysis and lab tests.

Volume of procedures performed by Dr. Chang S. Joo, MD for Medicare patients.

dialysis	272
doctor visit	699
hospital care	515
inpatient care	515
lab tests	41

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Chang S. Joo, MD.

**Gender**
Male	506
Female	504

**Ethnicity**
Non-Hispanic White	598
Black	30
Hispanic	282
Asian	70
Other	0
Native American	0

**Age**
From 65 to 74	400
From 75 to 84	290
85 and over	128
Less than 65	192

Conditions of Medicare patients treated by Dr. Chang S. Joo, MD in 2015

Hypertension	75
High Cholesterol	73
Stroke	9
Ischemic Heart Disease	58
Depression	20
Chronic Kidney Disease	75
Asthma	16
Osteoperosis	7
Atrial Fibrilation	18
Heart Failure	46
Chronic Obstructive Pulmonary Disease	20
Diabetes	68
Dementia	12
Cancer	8

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Chang S. Joo, MD treated as a nephrologist in Oakdale, CA during 2016 were hospital care, inpatient care, dialysis and lab tests.

Volume of procedures performed by Dr. Chang S. Joo, MD for Medicare patients.

dialysis	208
doctor visit	618
hospital care	421
inpatient care	421
lab tests	30

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Chang S. Joo, MD.

**Gender**
Male	228
Female	249

**Ethnicity**
Non-Hispanic White	274
Black	23
Hispanic	125
Asian	40
Other	0
Native American	0

**Age**
From 65 to 74	183
From 75 to 84	143
85 and over	69
Less than 65	82

Conditions of Medicare patients treated by Dr. Chang S. Joo, MD in 2016

Hypertension	75
High Cholesterol	73
Stroke	8
Ischemic Heart Disease	58
Depression	20
Chronic Kidney Disease	75
Asthma	26
Osteoperosis	7
Atrial Fibrilation	19
Heart Failure	45
Chronic Obstructive Pulmonary Disease	25
Diabetes	68
Dementia	12
Cancer	10

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Chang S. Joo, MD treated as a nephrologist in Oakdale, CA during 2017 were hospital care, inpatient care, dialysis and lab tests.

Volume of procedures performed by Dr. Chang S. Joo, MD for Medicare patients.

dialysis	259
doctor visit	620
hospital care	460
inpatient care	460
lab tests	39

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Chang S. Joo, MD.

**Gender**
Male	249
Female	237

**Ethnicity**
Non-Hispanic White	281
Black	18
Hispanic	125
Asian	41
Other	0
Native American	0

**Age**
From 65 to 74	183
From 75 to 84	141
85 and over	67
Less than 65	95

Conditions of Medicare patients treated by Dr. Chang S. Joo, MD in 2017

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	59
Depression	18
Chronic Kidney Disease	75
Asthma	7
Osteoperosis	6
Atrial Fibrilation	20
Heart Failure	43
Chronic Obstructive Pulmonary Disease	24
Diabetes	67
Dementia	14
Cancer	7

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Chang S. Joo, MD treated as a nephrologist in Oakdale, CA during 2018 were hospital care, inpatient care, dialysis and lab tests.

Volume of procedures performed by Dr. Chang S. Joo, MD for Medicare patients.

dialysis	205
doctor visit	602
hospital care	361
inpatient care	361
lab tests	34

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Chang S. Joo, MD.

**Gender**
Male	231
Female	220

**Ethnicity**
Non-Hispanic White	274
Black	19
Hispanic	103
Asian	36
Other	0
Native American	0

**Age**
From 65 to 74	174
From 75 to 84	138
85 and over	58
Less than 65	81

Conditions of Medicare patients treated by Dr. Chang S. Joo, MD in 2018

Hypertension	75
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	57
Depression	21
Chronic Kidney Disease	75
Asthma	8
Osteoperosis	6
Atrial Fibrilation	20
Heart Failure	44
Chronic Obstructive Pulmonary Disease	24
Diabetes	66
Dementia	14
Cancer	8

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Chang S. Joo, MD treated as a nephrologist in Oakdale, CA during 2019 were hospital care, inpatient care, dialysis and lab tests.

Volume of procedures performed by Dr. Chang S. Joo, MD for Medicare patients.

dialysis	190
doctor visit	562
hospital care	334
inpatient care	334
lab tests	32

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Chang S. Joo, MD.

**Gender**
Male	222
Female	221

**Ethnicity**
Non-Hispanic White	267
Black	22
Hispanic	109
Asian	34
Other	11
Native American	0

**Age**
From 65 to 74	168
From 75 to 84	136
85 and over	61
Less than 65	78

Conditions of Medicare patients treated by Dr. Chang S. Joo, MD in 2019

Hypertension	75
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	55
Depression	24
Chronic Kidney Disease	75
Asthma	7
Osteoperosis	9
Atrial Fibrilation	19
Heart Failure	44
Chronic Obstructive Pulmonary Disease	24
Diabetes	68
Dementia	15
Cancer	10

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Chang S. Joo, MD treated as a nephrologist in Oakdale, CA during 2020 were hospital care, inpatient care, dialysis and lab tests.

Volume of procedures performed by Dr. Chang S. Joo, MD for Medicare patients.

dialysis	268
doctor visit	243
hospital care	394
inpatient care	394
lab tests	19

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Chang S. Joo, MD.

**Gender**
Male	197
Female	183

**Ethnicity**
Non-Hispanic White	224
Black	0
Hispanic	94
Asian	32
Other	0
Native American	0

**Age**
From 65 to 74	139
From 75 to 84	134
85 and over	49
Less than 65	58

Conditions of Medicare patients treated by Dr. Chang S. Joo, MD in 2020

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	57
Depression	22
Chronic Kidney Disease	75
Asthma	8
Osteoperosis	9
Atrial Fibrilation	21
Heart Failure	47
Chronic Obstructive Pulmonary Disease	21
Diabetes	65
Dementia	16
Cancer	12

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Chang S. Joo, MD treated as a nephrologist in Oakdale, CA during 2021 were hospital care, inpatient care, dialysis and lab tests.

Volume of procedures performed by Dr. Chang S. Joo, MD for Medicare patients.

dialysis	173
doctor visit	404
hospital care	371
inpatient care	371
lab tests	27

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Chang S. Joo, MD.

**Gender**
Male	222
Female	224

**Ethnicity**
Non-Hispanic White	259
Black	13
Hispanic	119
Asian	44
Other	0
Native American	0

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

Conditions of Medicare patients treated by Dr. Chang S. Joo, MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	52
Depression	20
Chronic Kidney Disease	75
Asthma	8
Osteoperosis	9
Atrial Fibrilation	18
Heart Failure	41
Chronic Obstructive Pulmonary Disease	19
Diabetes	62
Dementia	16
Cancer	8

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Chang S. Joo, MD treated as a nephrologist in Oakdale, CA during 2022 were hospital care, inpatient care, dialysis and lab tests.

Volume of procedures performed by Dr. Chang S. Joo, MD for Medicare patients.

dialysis	113
doctor visit	512
hospital care	529
inpatient care	529
lab tests	27

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Chang S. Joo, MD.

**Gender**
Male	220
Female	222

**Ethnicity**
Non-Hispanic White	277
Black	0
Hispanic	103
Asian	38
Other	0
Native American	0

**Age**
From 65 to 74	147
From 75 to 84	163
85 and over	67
Less than 65	65

Conditions of Medicare patients treated by Dr. Chang S. Joo, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	15
Ischemic Heart Disease	43
Depression	24
Chronic Kidney Disease	75
Asthma	13
Osteoperosis	12
Atrial Fibrilation	32
Heart Failure	39
Chronic Obstructive Pulmonary Disease	25
Diabetes	64
Dementia	14
Cancer	14

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Chang S. Joo, MD for Medicare patients.

The highest averages for the top procedures that Dr. Chang S. Joo, MD treated as a nephrologist in Oakdale, CA were hospital care, inpatient care, dialysis and lab tests.

dialysis	225
doctor visit	566
hospital care	457
inpatient care	457
lab tests	34

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Chang S. Joo, MD.

**Gender**
Male	228
Female	233

**Ethnicity**
Black / African American	15
Asian / Pacific Islander	36
Non-Hispanic White	273
Native American / Alaskan Native	0
Hispanic	119
Other	1

**Age**
75 to 84	142
85 and over	64
Less than 65	84
65 to 74	171

Average of Total of Conditions of Medicare patients treated by Dr. Chang S. Joo, MD From 2012 - 2022

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

Hypertension	68
High Cholesterol	67
Stroke	8
Ischemic Heart Disease	50
Depression	19
Chronic Kidney Disease	68
Asthma	9
Osteoporosis	7
Heart Failure	39
Chronic Obstructive Pulmonary Disease	20
Diabetes	59
Atrial Fibrillation	18
Dementia	12
Cancer	8

Education & Training

Dr. Chang S. Joo, MD graduated from Yale School of Medicine. He completed residency at New York Methodist Hospital. He is certified by the Nephrology - Board Certified and has a state license in California.

Medical School: Yale School of Medicine

Residency: New York Methodist Hospital

Board Certification: Nephrology - Board Certified

Licensed In: California

Affiliations & Hospitals

Dr. Chang S. Joo, MD is associated with these hospitals and organizations:

Sutter Health

Central Valley Medical Group

MODESTO KIDNEY MEDICAL GROUP

Ratings & Reviews

Dr. Chang S. Joo, MD does not have any reviews yet, be the first to leave a review of Dr. Chang S. Joo, MD here: Leave a Review

(No ratings)

Leave a Review

General Payments

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

**Payments by Company**
Relypsa, Inc.	$686 VELTASSA $686
AstraZeneca Pharmaceuticals LP	$383 LOKELMA $187	BRILINTA $137	FARXIGA $59
Amgen Inc.	$305 Parsabiv $267	Sensipar $37
Otsuka America Pharmaceutical, Inc.	$291 SAMSCA $194	JYNARQUE $98
Fresenius USA Marketing, Inc.	$249 Velphoro $225	Dialyzers $24
Other	$1,117 Auryxia $394	Rayaldee $158	ACTHAR $115	BENLYSTA $76	KRYSTEXXA $47	Other $327

**Types of Payments**
Food and Beverage	$2,747
Education	$284

Biography

Dr. Chang Joo's specialty is adult nephrology. Areas of particular interest for Dr. Joo include hypertension (high blood pressure) and electrolyte disorders. He is a graduate of Yale School of Medicine and Yonsei University College of Medicine and a graduate of New York Methodist Hospital's residency program. Dr. Joo is conversant in Korean. Dr. Joo is professionally affiliated with Sutter Health, Memorial Hospital, and Central Valley Medical Group. Central Valley Medical Group reports that he is accepting new patients at his office in Modesto, CA.

Select Year:

Dr. Chang S. Joo, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Chang S. Joo, MD in 2023

By Affordability:

By Affordability:

By Affordability:

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Chang S. Joo, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Chang S. Joo, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Chang S. Joo, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Chang S. Joo, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Chang S. Joo, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Chang S. Joo, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Chang S. Joo, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Chang S. Joo, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Chang S. Joo, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Chang S. Joo, MD in 2022

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Average Medicare Patient Data From 2012 - 2022

Average of Total of Conditions of Medicare patients treated by Dr. Chang S. Joo, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

Other Providers in Oakdale, CA