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Dr. Zhengjin Cao, PhD, MD

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Specializes in: Internal Medicine (Adult Medicine)

Medical College of Nanchang University

1515 Delhi Street Suite 100
Dubuque, IA 52001

(563) 557-9111

Dr. Zhengjin Cao, PhD, MD is an internist in Dubuque, IA specializing in internal medicine (adult medicine). He graduated from Medical College of Nanchang University. Dr. Zhengjin Cao, PhD, MD is affiliated with UnityPoint Health, MercyOne and Finley Hospital.

Office Locations

Finley Hospital

1515 Delhi Street Suite 100
Dubuque, IA 52001

(563) 557-9111

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Noteworthy Medicare Patient Procedures Performed by Dr. Zhengjin Cao, PhD, MD in 2023

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

Top 5%

By Volume:

A1C test

carotid duplex ultrasound

lab tests

preventive care

skin lesion destruction

vascular ultrasound

In 2023, Dr. Zhengjin Cao, PhD, MD performed more A1C test, carotid duplex ultrasound, lab tests, preventive care, skin lesion destruction (e.g. laser surgery), and vascular ultrasound procedures for Medicare patients than 95% of providers in related specialties within Iowa.

Top 10%

By Volume:

blood draw

flu shot

phlebotomy for lab tests

thyroid blood test

By Affordability:

LDL test

In 2023, among providers in related specialties within Iowa, Dr. Zhengjin Cao, PhD, MD performed more blood draw, flu shot, phlebotomy for lab tests, and thyroid blood test procedures for Medicare patients than 90% of them and he also had a list price for LDL ("bad" cholesterol) test that was lower than the list prices billed to Medicare by 90% 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 25%

By Volume:

prostate-specific antigen test

prothrombin time test

screening PSA test

uric acid blood test

By Affordability:

Welcome to Medicare visit

wellness visit

In 2012, among providers in related specialties within Iowa, Dr. Zhengjin Cao, PhD, MD performed more prostate-specific antigen (PSA) test, prothrombin time (PT) test, screening PSA test, and uric acid blood test procedures for Medicare patients than 75% of them and he also had a list price for flu shot, flu vaccine, immunization (preventive vaccines), liver panel, vaccines, Welcome to Medicare visit (initial preventive physical exam), and wellness visit 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. Zhengjin Cao, PhD, MD treated as an internist in Dubuque, IA during 2012 were lab tests, preventive care, blood draw and inpatient care.

Volume of procedures performed by Dr. Zhengjin Cao, PhD, MD for Medicare patients.

blood draw	884
breast procedures	120
diabetes management	319
diagnostic imaging	21
doctor visit	1168
hospital care	507
inpatient care	507
lab tests	3741
musculoskeletal imaging	27
preventive care	1152
removal of lesion (e.g. growth)	13
skin procedures	13
thoracic (chest) imaging	57
thyroid function tests	424
vaccines	164
women's imaging	120
X-rays	204

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Zhengjin Cao, PhD, MD treated as an internist in Dubuque, IA during 2013 were lab tests, preventive care, blood draw and hospital care.

Volume of procedures performed by Dr. Zhengjin Cao, PhD, MD for Medicare patients.

blood draw	1080
breast procedures	126
diabetes management	423
diagnostic imaging	17
doctor visit	1353
ear procedures	29
hospital care	593
inpatient care	574
lab tests	4681
musculoskeletal imaging	35
outpatient care	19
preventive care	1450
removal of lesion (e.g. growth)	26
skin procedures	26
thoracic (chest) imaging	83
thyroid function tests	454
ultrasound (sonogram)	17
vaccines	207
vascular procedures	17
women's imaging	126
X-rays	244

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Zhengjin Cao, PhD, MD.

**Gender**
Male	350
Female	315

**Ethnicity**
Non-Hispanic White	639
Black	11
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	260
From 75 to 84	178
85 and over	79
Less than 65	148

Conditions of Medicare patients treated by Dr. Zhengjin Cao, PhD, MD in 2013

Hypertension	49
High Cholesterol	43
Stroke	4
Ischemic Heart Disease	23
Depression	22
Chronic Kidney Disease	20
Asthma	4
Osteoperosis	6
Atrial Fibrilation	10
Heart Failure	17
Chronic Obstructive Pulmonary Disease	13
Diabetes	33
Dementia	9
Cancer	10

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Zhengjin Cao, PhD, MD treated as an internist in Dubuque, IA during 2014 were lab tests, preventive care, blood draw and hospital care.

Volume of procedures performed by Dr. Zhengjin Cao, PhD, MD for Medicare patients.

blood draw	1052
breast procedures	137
cardiac procedures	16
diabetes management	444
diagnostic imaging	16
doctor visit	1435
ear procedures	39
hospital care	756
inpatient care	713
lab tests	4771
musculoskeletal imaging	49
outpatient care	43
preventive care	1592
removal of lesion (e.g. growth)	16
skin procedures	16
thoracic (chest) imaging	82
thyroid function tests	460
ultrasound (sonogram)	24
vaccines	264
vascular procedures	24
women's imaging	137
X-rays	268

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Zhengjin Cao, PhD, MD.

**Gender**
Male	349
Female	333

**Ethnicity**
Non-Hispanic White	650
Black	14
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	276
From 75 to 84	175
85 and over	82
Less than 65	149

Conditions of Medicare patients treated by Dr. Zhengjin Cao, PhD, MD in 2014

Hypertension	56
High Cholesterol	49
Stroke	6
Ischemic Heart Disease	21
Depression	25
Chronic Kidney Disease	20
Asthma	6
Osteoperosis	8
Atrial Fibrilation	11
Heart Failure	18
Chronic Obstructive Pulmonary Disease	15
Diabetes	32
Dementia	11
Cancer	10

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Zhengjin Cao, PhD, MD treated as an internist in Dubuque, IA during 2015 were lab tests, preventive care, blood draw and hospital care.

Volume of procedures performed by Dr. Zhengjin Cao, PhD, MD for Medicare patients.

blood draw	1101
breast procedures	122
cardiac procedures	12
diabetes management	463
doctor visit	1518
ear procedures	35
hospital care	592
inpatient care	560
lab tests	4849
musculoskeletal imaging	56
outpatient care	32
preventive care	1853
removal of lesion (e.g. growth)	19
skin procedures	19
thoracic (chest) imaging	65
thyroid function tests	376
ultrasound (sonogram)	17
vaccines	466
vascular procedures	17
women's imaging	122
X-rays	243

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Zhengjin Cao, PhD, MD.

**Gender**
Male	686
Female	578

**Ethnicity**
Non-Hispanic White	1198
Black	24
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	564
From 75 to 84	316
85 and over	132
Less than 65	252

Conditions of Medicare patients treated by Dr. Zhengjin Cao, PhD, MD in 2015

Hypertension	65
High Cholesterol	61
Stroke	5
Ischemic Heart Disease	21
Depression	25
Chronic Kidney Disease	28
Asthma	13
Osteoperosis	10
Atrial Fibrilation	11
Heart Failure	18
Chronic Obstructive Pulmonary Disease	16
Diabetes	37
Dementia	7
Cancer	10

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Zhengjin Cao, PhD, MD treated as an internist in Dubuque, IA during 2016 were lab tests, preventive care, blood draw and hospital care.

Volume of procedures performed by Dr. Zhengjin Cao, PhD, MD for Medicare patients.

blood draw	788
breast procedures	90
diabetes management	319
diagnostic imaging	12
doctor visit	1089
ear procedures	18
hospital care	388
inpatient care	373
lab tests	3306
musculoskeletal imaging	29
outpatient care	15
preventive care	1214
thoracic (chest) imaging	37
thyroid function tests	247
vaccines	222
women's imaging	90
X-rays	156

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Zhengjin Cao, PhD, MD.

**Gender**
Male	265
Female	219

**Ethnicity**
Non-Hispanic White	446
Black	21
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	197
From 75 to 84	88
85 and over	35
Less than 65	164

Conditions of Medicare patients treated by Dr. Zhengjin Cao, PhD, MD in 2016

Hypertension	60
High Cholesterol	54
Stroke	4
Ischemic Heart Disease	21
Depression	27
Chronic Kidney Disease	33
Asthma	22
Osteoperosis	7
Atrial Fibrilation	8
Heart Failure	16
Chronic Obstructive Pulmonary Disease	19
Diabetes	36
Dementia	8
Cancer	9

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Zhengjin Cao, PhD, MD treated as an internist in Dubuque, IA during 2017 were lab tests, preventive care, blood draw and hospital care.

Volume of procedures performed by Dr. Zhengjin Cao, PhD, MD for Medicare patients.

blood draw	840
breast procedures	82
diabetes management	366
doctor visit	1051
hospital care	590
inpatient care	556
lab tests	3332
mental health therapy	29
musculoskeletal imaging	28
outpatient care	34
preventive care	1270
removal of lesion (e.g. growth)	17
skin procedures	17
thoracic (chest) imaging	29
thyroid function tests	285
ultrasound (sonogram)	15
vaccines	206
vascular procedures	15
weight management	29
women's imaging	82
X-rays	139

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Zhengjin Cao, PhD, MD.

**Gender**
Male	281
Female	223

**Ethnicity**
Non-Hispanic White	469
Black	20
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	213
From 75 to 84	99
85 and over	37
Less than 65	155

Conditions of Medicare patients treated by Dr. Zhengjin Cao, PhD, MD in 2017

Hypertension	64
High Cholesterol	57
Stroke	5
Ischemic Heart Disease	23
Depression	30
Chronic Kidney Disease	35
Asthma	10
Osteoperosis	8
Atrial Fibrilation	11
Heart Failure	18
Chronic Obstructive Pulmonary Disease	21
Diabetes	38
Dementia	10
Cancer	11

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Zhengjin Cao, PhD, MD treated as an internist in Dubuque, IA during 2018 were lab tests, preventive care, blood draw and hospital care.

Volume of procedures performed by Dr. Zhengjin Cao, PhD, MD for Medicare patients.

blood draw	802
breast procedures	82
cardiac procedures	12
CT scan	14
diabetes management	371
doctor visit	1023
ear procedures	14
hospital care	465
inpatient care	439
lab tests	3292
musculoskeletal imaging	19
outpatient care	26
preventive care	1264
thoracic (chest) imaging	14
thyroid function tests	301
ultrasound (sonogram)	12
vaccines	188
women's imaging	82
X-rays	101

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Zhengjin Cao, PhD, MD.

**Gender**
Male	264
Female	212

**Ethnicity**
Non-Hispanic White	449
Black	14
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	221
From 75 to 84	92
85 and over	34
Less than 65	129

Conditions of Medicare patients treated by Dr. Zhengjin Cao, PhD, MD in 2018

Hypertension	64
High Cholesterol	57
Stroke	5
Ischemic Heart Disease	24
Depression	28
Chronic Kidney Disease	33
Asthma	7
Osteoperosis	7
Atrial Fibrilation	10
Heart Failure	18
Chronic Obstructive Pulmonary Disease	17
Diabetes	37
Dementia	9
Cancer	11

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Zhengjin Cao, PhD, MD treated as an internist in Dubuque, IA during 2019 were lab tests, preventive care, blood draw and hospital care.

Volume of procedures performed by Dr. Zhengjin Cao, PhD, MD for Medicare patients.

blood draw	798
breast procedures	70
CT scan	13
diabetes management	364
doctor visit	1013
hospital care	466
inpatient care	429
lab tests	3210
musculoskeletal imaging	14
outpatient care	37
preventive care	1256
removal of lesion (e.g. growth)	17
skin procedures	17
spinal procedures	13
thoracic (chest) imaging	13
thyroid function tests	312
vaccines	188
women's imaging	70
X-rays	97

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Zhengjin Cao, PhD, MD.

**Gender**
Male	253
Female	212

**Ethnicity**
Non-Hispanic White	434
Black	14
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	210
From 75 to 84	103
85 and over	36
Less than 65	116

Conditions of Medicare patients treated by Dr. Zhengjin Cao, PhD, MD in 2019

Hypertension	67
High Cholesterol	60
Stroke	5
Ischemic Heart Disease	23
Depression	28
Chronic Kidney Disease	35
Asthma	7
Osteoperosis	8
Atrial Fibrilation	11
Heart Failure	18
Chronic Obstructive Pulmonary Disease	18
Diabetes	37
Dementia	8
Cancer	10

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Zhengjin Cao, PhD, MD treated as an internist in Dubuque, IA during 2020 were lab tests, preventive care, blood draw and diabetes management.

Volume of procedures performed by Dr. Zhengjin Cao, PhD, MD for Medicare patients.

blood draw	716
breast procedures	71
CT scan	14
diabetes management	336
doctor visit	870
hospital care	260
inpatient care	260
lab tests	2920
musculoskeletal imaging	17
preventive care	1189
removal of lesion (e.g. growth)	17
skin procedures	17
thoracic (chest) imaging	14
thyroid function tests	229
ultrasound (sonogram)	11
vaccines	187
vascular procedures	11
women's imaging	71
X-rays	88

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Zhengjin Cao, PhD, MD.

**Gender**
Male	228
Female	190

**Ethnicity**
Non-Hispanic White	389
Black	12
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	206
From 75 to 84	87
85 and over	29
Less than 65	96

Conditions of Medicare patients treated by Dr. Zhengjin Cao, PhD, MD in 2020

Hypertension	65
High Cholesterol	61
Stroke	5
Ischemic Heart Disease	19
Depression	26
Chronic Kidney Disease	38
Asthma	9
Osteoperosis	8
Atrial Fibrilation	8
Heart Failure	19
Chronic Obstructive Pulmonary Disease	13
Diabetes	37
Dementia	6
Cancer	11

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Zhengjin Cao, PhD, MD treated as an internist in Dubuque, IA during 2021 were lab tests, preventive care, blood draw and hospital care.

Volume of procedures performed by Dr. Zhengjin Cao, PhD, MD for Medicare patients.

blood draw	707
breast procedures	60
diabetes management	334
doctor visit	898
hospital care	374
inpatient care	335
lab tests	2868
musculoskeletal imaging	14
outpatient care	39
preventive care	1083
removal of lesion (e.g. growth)	12
skin procedures	12
thyroid function tests	265
vaccines	130
women's imaging	60
X-rays	74

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Zhengjin Cao, PhD, MD.

**Gender**
Male	280
Female	240

**Ethnicity**
Non-Hispanic White	489
Black	11
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	224
From 75 to 84	148
85 and over	55
Less than 65	93

Conditions of Medicare patients treated by Dr. Zhengjin Cao, PhD, MD in 2021

Hypertension	53
High Cholesterol	50
Stroke	4
Ischemic Heart Disease	19
Depression	20
Chronic Kidney Disease	30
Asthma	7
Osteoperosis	5
Atrial Fibrilation	6
Heart Failure	16
Chronic Obstructive Pulmonary Disease	12
Diabetes	30
Dementia	6
Cancer	8

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Zhengjin Cao, PhD, MD treated as an internist in Dubuque, IA during 2022 were lab tests, preventive care, blood draw and inpatient care.

Volume of procedures performed by Dr. Zhengjin Cao, PhD, MD for Medicare patients.

blood draw	669
breast procedures	73
diabetes management	287
doctor visit	941
hospital care	316
inpatient care	316
lab tests	2806
musculoskeletal imaging	19
preventive care	1030
removal of lesion (e.g. growth)	21
skin procedures	21
thyroid function tests	285
ultrasound (sonogram)	15
vaccines	125
vascular procedures	15
women's imaging	73
X-rays	92

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Zhengjin Cao, PhD, MD.

**Gender**
Male	228
Female	205

**Ethnicity**
Non-Hispanic White	406
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	210
From 75 to 84	110
85 and over	37
Less than 65	76

Conditions of Medicare patients treated by Dr. Zhengjin Cao, PhD, MD in 2022

Hypertension	72
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	19
Depression	22
Chronic Kidney Disease	23
Asthma	11
Osteoperosis	10
Atrial Fibrilation	15
Heart Failure	17
Chronic Obstructive Pulmonary Disease	19
Diabetes	35
Dementia	5
Cancer	12

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Zhengjin Cao, PhD, MD for Medicare patients.

The highest averages for the top procedures that Dr. Zhengjin Cao, PhD, MD treated as an internist in Dubuque, IA were lab tests, preventive care, blood draw and hospital care.

blood draw	857
breast procedures	93
cardiac procedures	13
CT scan	13
diabetes management	366
diagnostic imaging	16
doctor visit	1123
ear procedures	27
hospital care	482
inpatient care	460
lab tests	3616
mental health therapy	29
musculoskeletal imaging	27
outpatient care	30
preventive care	1304
removal of lesion (e.g. growth)	17
skin procedures	17
spinal procedures	13
thoracic (chest) imaging	43
thyroid function tests	330
ultrasound (sonogram)	15
vaccines	213
vascular procedures	16
weight management	29
women's imaging	93
X-rays	155

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Zhengjin Cao, PhD, MD.

**Gender**
Male	289
Female	247

**Ethnicity**
Black / African American	12
Asian / Pacific Islander	0
Non-Hispanic White	506
Native American / Alaskan Native	0
Hispanic	0
Other	0

**Age**
75 to 84	126
85 and over	50
Less than 65	125
65 to 74	234

Average of Total of Conditions of Medicare patients treated by Dr. Zhengjin Cao, PhD, MD From 2012 - 2022

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

Hypertension	55
High Cholesterol	51
Stroke	4
Ischemic Heart Disease	19
Depression	23
Chronic Kidney Disease	26
Asthma	8
Osteoporosis	7
Heart Failure	15
Chronic Obstructive Pulmonary Disease	14
Diabetes	32
Atrial Fibrillation	9
Dementia	7
Cancer	9

Education & Training

Dr. Zhengjin Cao, PhD, MD graduated from Medical College of Nanchang University. He completed residency at Northwestern University Affiliated Hospitals. He is certified by the Internal Medicine, American Board of Internal Medicine and has a state license in Iowa.

Medical School: Medical College of Nanchang University

Residency: Northwestern University Affiliated Hospitals

Board Certification: Internal Medicine, American Board of Internal Medicine

Licensed In: Iowa

Affiliations & Hospitals

Dr. Zhengjin Cao, PhD, MD is associated with these hospitals and organizations:

UnityPoint Health

MercyOne

Finley Hospital

Ratings & Reviews

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General Payments

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

**Payments by Company**
Janssen Pharmaceuticals, Inc	$749 INVOKANA $535	XARELTO $207	$7
FUJIFILM Medical Systems USA, Inc.	$350 EC-250LS5 $207	EC-530LS $143
Allergan Inc.	$226 LINZESS $147	BYSTOLIC $66	NAMZARIC $10	VIIBRYD $3
Astellas Pharma US Inc	$198 $198
AbbVie Inc.	$154 UBRELVY $138	QULIPTA $16
Other	$96 ENTRESTO $25	Uloric $25	FARXIGA $16	BREZTRI $15	LEVITRA $14

**Types of Payments**
Food and Beverage	$1,095
Gift	$350
Education	$303
Consulting Fee	$25

Biography

Areas of particular interest for Dr. Zhengjin Cao include internal medicine. Dr. Cao is professionally affiliated with UnityPoint Health and MercyOne. According to UnityPoint Health, he is currently accepting new patients at his office in Dubuque, IA. He studied medicine at Medical College of Nanchang University. His training includes residency programs at Aurora Sinai Medical Center and a hospital affiliated with Northwestern University. Dr. Cao is conversant in Chinese.