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Dr. Tiffany Yin Wong Chang, MD

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Specializes in: Surgical Pathology and Cytopathology

University of Missouri-Kansas City School of Medicine (2002)

25 N Winfield Road
Winfield, IL 60190

(630) 933-6636

Dr. Tiffany Yin Wong Chang, MD is an anatomic pathologist in Winfield, IL specializing in surgical pathology and cytopathology. She graduated from University of Missouri-Kansas City School of Medicine in 2002 and has 24 years of experience. Dr. Tiffany Yin Wong Chang, MD is affiliated with Northwestern Medicine.

Office Locations

Northwestern Medicine

25 N Winfield Road
Winfield, IL 60190

(630) 933-6636

(630) 933-2669

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Noteworthy Medicare Patient Procedures Performed by Dr. Tiffany Yin Wong Chang, MD in 2024

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

Top 5%

By Volume:

lab tests

serum protein electrophoresis

urine protein electrophoresis

By Affordability:

CSF protein electrophoresis

serum protein electrophoresis

urine protein electrophoresis

urine tests

In 2024, among providers in related specialties within Illinois, Dr. Tiffany Yin Wong Chang, MD performed more lab tests, serum protein electrophoresis (SPEP), and urine protein electrophoresis procedures for Medicare patients than 95% of them and she also had a list price for CSF protein electrophoresis, serum protein electrophoresis (SPEP), urine protein electrophoresis, and urine tests 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:

cytology

non-gynecologic liquid-based cytology

In 2024, Dr. Tiffany Yin Wong Chang, MD performed more cytology, and non-gynecologic liquid-based cytology procedures for Medicare patients than 90% of providers in related specialties within Illinois.

Top 25%

By Volume:

intraoperative pathology consultation

By Affordability:

blood tests

protein electrophoresis

In 2012, among providers in related specialties within Illinois, Dr. Tiffany Yin Wong Chang, MD performed more intraoperative pathology consultation procedures for Medicare patients than 75% of them and she also had a list price for blood tests, and protein electrophoresis 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. Tiffany Yin Wong Chang, MD treated as an anatomic pathologist in Winfield, IL during 2012 were lab tests, cytology and consultation.

Volume of procedures performed by Dr. Tiffany Yin Wong Chang, MD for Medicare patients.

consultation	62
cytology	121
lab tests	1035

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Tiffany Yin Wong Chang, MD treated as an anatomic pathologist in Winfield, IL during 2013 were lab tests, cytology and consultation.

Volume of procedures performed by Dr. Tiffany Yin Wong Chang, MD for Medicare patients.

consultation	64
cytology	157
lab tests	1045

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD.

**Gender**
Male	618
Female	909

**Ethnicity**
Non-Hispanic White	1345
Black	65
Hispanic	57
Asian	35
Other	25
Native American	0

**Age**
From 65 to 74	702
From 75 to 84	479
85 and over	183
Less than 65	163

Conditions of Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD in 2013

Hypertension	72
High Cholesterol	63
Stroke	10
Ischemic Heart Disease	34
Depression	24
Chronic Kidney Disease	25
Asthma	10
Osteoperosis	13
Atrial Fibrilation	14
Heart Failure	23
Chronic Obstructive Pulmonary Disease	18
Diabetes	29
Dementia	9
Cancer	19

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Tiffany Yin Wong Chang, MD treated as an anatomic pathologist in Winfield, IL during 2014 were lab tests, cytology and consultation.

Volume of procedures performed by Dr. Tiffany Yin Wong Chang, MD for Medicare patients.

consultation	64
cytology	131
lab tests	892

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD.

**Gender**
Male	556
Female	810

**Ethnicity**
Non-Hispanic White	1186
Black	58
Hispanic	57
Asian	39
Other	0
Native American	0

**Age**
From 65 to 74	664
From 75 to 84	393
85 and over	151
Less than 65	158

Conditions of Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD in 2014

Hypertension	71
High Cholesterol	60
Stroke	9
Ischemic Heart Disease	32
Depression	25
Chronic Kidney Disease	28
Asthma	9
Osteoperosis	14
Atrial Fibrilation	16
Heart Failure	20
Chronic Obstructive Pulmonary Disease	18
Diabetes	27
Dementia	8
Cancer	19

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Tiffany Yin Wong Chang, MD treated as an anatomic pathologist in Winfield, IL during 2015 were lab tests, cytology and consultation.

Volume of procedures performed by Dr. Tiffany Yin Wong Chang, MD for Medicare patients.

consultation	34
cytology	111
lab tests	849

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD.

**Gender**
Male	1070
Female	1560

**Ethnicity**
Non-Hispanic White	2252
Black	134
Hispanic	120
Asian	66
Other	58
Native American	0

**Age**
From 65 to 74	1254
From 75 to 84	828
85 and over	274
Less than 65	274

Conditions of Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD in 2015

Hypertension	73
High Cholesterol	64
Stroke	7
Ischemic Heart Disease	30
Depression	26
Chronic Kidney Disease	27
Asthma	13
Osteoperosis	13
Atrial Fibrilation	13
Heart Failure	19
Chronic Obstructive Pulmonary Disease	17
Diabetes	28
Dementia	10
Cancer	17

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Tiffany Yin Wong Chang, MD treated as an anatomic pathologist in Winfield, IL during 2016 were lab tests, cytology and consultation.

Volume of procedures performed by Dr. Tiffany Yin Wong Chang, MD for Medicare patients.

consultation	49
cytology	102
lab tests	556

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD.

**Gender**
Male	471
Female	781

**Ethnicity**
Non-Hispanic White	1083
Black	49
Hispanic	56
Asian	41
Other	23
Native American	0

**Age**
From 65 to 74	620
From 75 to 84	380
85 and over	140
Less than 65	112

Conditions of Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD in 2016

Hypertension	73
High Cholesterol	63
Stroke	6
Ischemic Heart Disease	31
Depression	22
Chronic Kidney Disease	34
Asthma	18
Osteoperosis	12
Atrial Fibrilation	15
Heart Failure	18
Chronic Obstructive Pulmonary Disease	15
Diabetes	31
Dementia	8
Cancer	18

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Tiffany Yin Wong Chang, MD treated as an anatomic pathologist in Winfield, IL during 2017 were lab tests, cytology and consultation.

Volume of procedures performed by Dr. Tiffany Yin Wong Chang, MD for Medicare patients.

consultation	62
cytology	191
lab tests	737

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD.

**Gender**
Male	564
Female	824

**Ethnicity**
Non-Hispanic White	1223
Black	67
Hispanic	46
Asian	31
Other	21
Native American	0

**Age**
From 65 to 74	686
From 75 to 84	425
85 and over	141
Less than 65	136

Conditions of Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD in 2017

Hypertension	71
High Cholesterol	54
Stroke	6
Ischemic Heart Disease	32
Depression	25
Chronic Kidney Disease	32
Asthma	9
Osteoperosis	12
Atrial Fibrilation	13
Heart Failure	18
Chronic Obstructive Pulmonary Disease	16
Diabetes	26
Dementia	10
Cancer	18

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Tiffany Yin Wong Chang, MD treated as an anatomic pathologist in Winfield, IL during 2018 were lab tests, cytology and consultation.

Volume of procedures performed by Dr. Tiffany Yin Wong Chang, MD for Medicare patients.

consultation	51
cytology	175
lab tests	712

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD.

**Gender**
Male	527
Female	857

**Ethnicity**
Non-Hispanic White	1181
Black	61
Hispanic	65
Asian	38
Other	0
Native American	0

**Age**
From 65 to 74	663
From 75 to 84	457
85 and over	130
Less than 65	134

Conditions of Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD in 2018

Hypertension	72
High Cholesterol	67
Stroke	6
Ischemic Heart Disease	31
Depression	27
Chronic Kidney Disease	35
Asthma	8
Osteoperosis	13
Atrial Fibrilation	14
Heart Failure	19
Chronic Obstructive Pulmonary Disease	16
Diabetes	29
Dementia	10
Cancer	20

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Tiffany Yin Wong Chang, MD treated as an anatomic pathologist in Winfield, IL during 2019 were lab tests, cytology and consultation.

Volume of procedures performed by Dr. Tiffany Yin Wong Chang, MD for Medicare patients.

consultation	41
cytology	213
lab tests	912

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD.

**Gender**
Male	559
Female	824

**Ethnicity**
Non-Hispanic White	1194
Black	66
Hispanic	50
Asian	37
Other	0
Native American	0

**Age**
From 65 to 74	624
From 75 to 84	476
85 and over	159
Less than 65	124

Conditions of Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD in 2019

Hypertension	75
High Cholesterol	67
Stroke	8
Ischemic Heart Disease	37
Depression	26
Chronic Kidney Disease	39
Asthma	9
Osteoperosis	13
Atrial Fibrilation	15
Heart Failure	23
Chronic Obstructive Pulmonary Disease	16
Diabetes	31
Dementia	11
Cancer	19

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Tiffany Yin Wong Chang, MD treated as an anatomic pathologist in Winfield, IL during 2020 were lab tests, cytology and consultation.

Volume of procedures performed by Dr. Tiffany Yin Wong Chang, MD for Medicare patients.

consultation	27
cytology	265
lab tests	813

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD.

**Gender**
Male	494
Female	675

**Ethnicity**
Non-Hispanic White	1017
Black	42
Hispanic	47
Asian	30
Other	33
Native American	0

**Age**
From 65 to 74	569
From 75 to 84	368
85 and over	135
Less than 65	97

Conditions of Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD in 2020

Hypertension	72
High Cholesterol	65
Stroke	7
Ischemic Heart Disease	33
Depression	25
Chronic Kidney Disease	40
Asthma	8
Osteoperosis	11
Atrial Fibrilation	16
Heart Failure	22
Chronic Obstructive Pulmonary Disease	16
Diabetes	31
Dementia	9
Cancer	19

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Tiffany Yin Wong Chang, MD treated as an anatomic pathologist in Winfield, IL during 2021 were lab tests, cytology, consultation and second opinions.

Volume of procedures performed by Dr. Tiffany Yin Wong Chang, MD for Medicare patients.

consultation	58
cytology	374
lab tests	1575
second opinions	14

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD.

**Gender**
Male	781
Female	1064

**Ethnicity**
Non-Hispanic White	1625
Black	66
Hispanic	69
Asian	0
Other	49
Native American	0

**Age**
From 65 to 74	865
From 75 to 84	631
85 and over	220
Less than 65	129

Conditions of Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD in 2021

Hypertension	74
High Cholesterol	68
Stroke	7
Ischemic Heart Disease	35
Depression	24
Chronic Kidney Disease	40
Asthma	9
Osteoperosis	13
Atrial Fibrilation	15
Heart Failure	23
Chronic Obstructive Pulmonary Disease	16
Diabetes	31
Dementia	10
Cancer	19

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Tiffany Yin Wong Chang, MD treated as an anatomic pathologist in Winfield, IL during 2022 were lab tests, cytology, consultation and second opinions.

Volume of procedures performed by Dr. Tiffany Yin Wong Chang, MD for Medicare patients.

consultation	40
cytology	337
lab tests	1325
second opinions	11

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD.

**Gender**
Male	701
Female	965

**Ethnicity**
Non-Hispanic White	1458
Black	56
Hispanic	63
Asian	0
Other	59
Native American	0

**Age**
From 65 to 74	800
From 75 to 84	595
85 and over	163
Less than 65	108

Conditions of Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	10
Ischemic Heart Disease	28
Depression	23
Chronic Kidney Disease	26
Asthma	10
Osteoperosis	18
Atrial Fibrilation	20
Heart Failure	19
Chronic Obstructive Pulmonary Disease	19
Diabetes	30
Dementia	7
Cancer	25

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Tiffany Yin Wong Chang, MD treated as an anatomic pathologist in Winfield, IL during 2023 were lab tests, cytology, consultation and second opinions.

Volume of procedures performed by Dr. Tiffany Yin Wong Chang, MD for Medicare patients.

consultation	30
cytology	353
lab tests	1074
second opinions	11

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD.

**Gender**
Male	614
Female	881

**Ethnicity**
Non-Hispanic White	1280
Black	46
Hispanic	64
Asian	0
Other	59
Native American	0

**Age**
From 65 to 74	718
From 75 to 84	530
85 and over	165
Less than 65	82

Conditions of Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD in 2023

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	31
Depression	24
Chronic Kidney Disease	28
Asthma	12
Osteoperosis	18
Atrial Fibrilation	22
Heart Failure	22
Chronic Obstructive Pulmonary Disease	21
Diabetes	30
Dementia	7
Cancer	27

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Tiffany Yin Wong Chang, MD treated as an anatomic pathologist in Winfield, IL during 2024 were lab tests, cytology and consultation.

Volume of procedures performed by Dr. Tiffany Yin Wong Chang, MD for Medicare patients.

consultation	48
cytology	371
lab tests	1307

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD.

**Gender**
Male	685
Female	871

**Ethnicity**
Non-Hispanic White	1341
Black	66
Hispanic	63
Asian	32
Other	54
Native American	0

**Age**
From 65 to 74	716
From 75 to 84	581
85 and over	178
Less than 65	81

Conditions of Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD in 2024

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	33
Depression	21
Chronic Kidney Disease	30
Asthma	10
Osteoperosis	21
Atrial Fibrilation	21
Heart Failure	21
Chronic Obstructive Pulmonary Disease	19
Diabetes	31
Dementia	7
Cancer	26

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Tiffany Yin Wong Chang, MD for Medicare patients.

The highest averages for the top procedures that Dr. Tiffany Yin Wong Chang, MD treated as an anatomic pathologist in Winfield, IL were lab tests, cytology, consultation and second opinions.

consultation	48
cytology	223
lab tests	987
second opinions	12

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD.

**Gender**
Male	587
Female	847

**Ethnicity**
Black / African American	59
Asian / Pacific Islander	26
Non-Hispanic White	1245
Hispanic	58
Native American / Alaskan Native	0
Other	29

**Age**
75 to 84	472
85 and over	156
Less than 65	122
65 to 74	683

Average of Total of Conditions of Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Tiffany Yin Wong Chang, MD treated were hypertension, high cholesterol, chronic kidney disease and ischemic heart disease.

Hypertension	67
High Cholesterol	61
Stroke	7
Ischemic Heart Disease	29
Depression	22
Chronic Kidney Disease	29
Asthma	9
Osteoporosis	13
Heart Failure	19
Chronic Obstructive Pulmonary Disease	15
Diabetes	27
Atrial Fibrillation	14
Cancer	18
Dementia	8

Education & Training

Dr. Tiffany Yin Wong Chang, MD graduated from University of Missouri-Kansas City School of Medicine in 2002. She completed residency at University of Chicago Affiliated Hospitals. She is certified by the American Board of Pathology/Cytopathology - Cytopathology (Certified) and has a state license in Illinois.

Medical School: University of Missouri-Kansas City School of Medicine (2002)

Residency: University of Chicago Affiliated Hospitals (2006)

Board Certification: American Board of Pathology/Cytopathology - Cytopathology (Certified)

Licensed In: Illinois

Ratings & Reviews

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General Payments

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

**Payments by Company**
AstraZeneca Pharmaceuticals LP	$61 $61
Shionogi Inc	$22 Osphena $22
Novartis Pharmaceuticals Corporation	$19 COSENTYX $19

**Types of Payments**
Food and Beverage	$102

Biography

Dr. Tiffany Chang practices cytopathology and surgical pathology. She attended medical school at the University of Missouri-Kansas City School of Medicine. For her professional training, Dr. Chang completed a residency program at a hospital affiliated with the University of Chicago. Dr. Chang's professional affiliations include Northwestern Medicine Central DuPage Hospital and Delnor Hospital.

Select Year:

Dr. Tiffany Yin Wong Chang, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Tiffany Yin Wong Chang, MD in 2024

By Volume:

By Affordability:

By Volume:

By Volume:

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. Tiffany Yin Wong Chang, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD in 2023

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

2024 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD in 2024

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Average Medicare Patient Data From 2012 - 2024

Average of Total of Conditions of Medicare patients treated by Dr. Tiffany Yin Wong Chang, MD From 2012 - 2024

Education & Training

Ratings & Reviews

General Payments

Biography

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