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Dr. Z. John Chen, MD, PhD, AGAF

Accepting New Patients
(Dr. Zongyu J. Chen, MD)
Specializes in: Adult Gastroenterology
Shanghai Medical University
Professional interests include: Helicobacter pylori (H. pylori) infection, gastrointestinal bleeding, peptic ulcer, and more.
9145 Springbrook Drive NW #200 / #300
Coon Rapids, MN 55433

Dr. Z. John Chen, MD, PhD, AGAF is a gastroenterologist in Coon Rapids, MN specializing in adult gastroenterology. He graduated from Shanghai Medical University. Dr. Z. John Chen, MD, PhD, AGAF is affiliated with MNGI Digestive Health and MNGI DIGESTIVE HEALTH PA.

View Doctor's Full Profile (612) 871-1145

Office Locations

9145 Springbrook Drive NW #200 / #300
Coon Rapids, MN 55433
open_in_new

Noteworthy Medicare Patient Procedures Performed by Dr. Z. John Chen, MD, PhD, AGAF in 2023

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

Top 5%

By Volume:

biological response modifier therapy
intravenous chemotherapy

By Affordability:

blood draw
blood draw for lab tests
intravenous infusion therapy
phlebotomy for lab tests
venipuncture

In 2023, among providers in related specialties within Minnesota, Dr. Z. John Chen, MD, PhD, AGAF performed more biological response modifier (BRM) therapy, and intravenous (IV) chemotherapy procedures for Medicare patients than 95% of them and he also had a list price for blood draw, blood draw for lab tests, intravenous infusion therapy, phlebotomy for lab tests, and venipuncture (phlebotomy) 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 25%

By Volume:

minimally invasive procedures

By Affordability:

diagnostic EGD
diagnostic EGD without biopsy
diagnostic upper endoscopy
EGD with biopsy
EGD with lesion removal
esophagogastroduodenoscopy
intravenous infusion
therapeutic EGD
therapeutic upper endoscopy
upper endoscopy
upper endoscopy with biopsy
upper endoscopy with lesion removal

In 2012, among providers in related specialties within Minnesota, Dr. Z. John Chen, MD, PhD, AGAF performed more minimally invasive procedures procedures for Medicare patients than 75% of them and he also had a list price for diagnostic EGD, diagnostic EGD without biopsy, diagnostic upper endoscopy, EGD with biopsy, EGD with lesion removal, esophagogastroduodenoscopy (EGD), intravenous (IV) infusion, therapeutic EGD, therapeutic upper endoscopy, upper endoscopy, upper endoscopy with biopsy, and upper endoscopy with lesion removal 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. Z. John Chen, MD, PhD, AGAF treated as a gastroenterologist in Coon Rapids, MN during 2012 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Z. John Chen, MD, PhD, AGAF for Medicare patients.

blood draw 61
diagnostic procedures 133
doctor visit 73
esophageal dilation 18
gastrointestinal procedures 216
hospital care 63
inpatient care 63
lab tests 12
minimally invasive procedures 232
preventive care 12
removal of lesion (e.g. growth) 133
thyroid function tests 12

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Z. John Chen, MD, PhD, AGAF treated as a gastroenterologist in Coon Rapids, MN during 2013 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Z. John Chen, MD, PhD, AGAF for Medicare patients.

blood draw 33
diagnostic procedures 143
doctor visit 54
gastrointestinal procedures 184
hospital care 64
inpatient care 64
minimally invasive procedures 198
removal of lesion (e.g. growth) 143

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Z. John Chen, MD, PhD, AGAF.

Gender
Male 118
Female 171
Ethnicity
Non-Hispanic White 261
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 115
From 75 to 84 83
85 and over 20
Less than 65 71

Conditions of Medicare patients treated by Dr. Z. John Chen, MD, PhD, AGAF in 2013

Hypertension 61
High Cholesterol 50
Stroke 0
Ischemic Heart Disease 33
Depression 31
Chronic Kidney Disease 35
Asthma 10
Osteoperosis 8
Atrial Fibrilation 14
Heart Failure 19
Chronic Obstructive Pulmonary Disease 16
Diabetes 27
Dementia 7
Cancer 13

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Z. John Chen, MD, PhD, AGAF treated as a gastroenterologist in Coon Rapids, MN during 2014 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Z. John Chen, MD, PhD, AGAF for Medicare patients.

blood draw 51
diagnostic procedures 144
doctor visit 62
gastrointestinal procedures 174
hospital care 91
inpatient care 91
minimally invasive procedures 174
removal of lesion (e.g. growth) 144

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Z. John Chen, MD, PhD, AGAF.

Gender
Male 109
Female 163
Ethnicity
Non-Hispanic White 238
Black 13
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 103
From 75 to 84 71
85 and over 21
Less than 65 77

Conditions of Medicare patients treated by Dr. Z. John Chen, MD, PhD, AGAF in 2014

Hypertension 64
High Cholesterol 50
Stroke 5
Ischemic Heart Disease 36
Depression 39
Chronic Kidney Disease 37
Asthma 15
Osteoperosis 7
Atrial Fibrilation 17
Heart Failure 23
Chronic Obstructive Pulmonary Disease 19
Diabetes 36
Dementia 10
Cancer 11

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Z. John Chen, MD, PhD, AGAF treated as a gastroenterologist in Coon Rapids, MN during 2015 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Z. John Chen, MD, PhD, AGAF for Medicare patients.

blood draw 47
diagnostic procedures 131
doctor visit 70
gastrointestinal procedures 155
hospital care 47
inpatient care 47
minimally invasive procedures 155
removal of lesion (e.g. growth) 131

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Z. John Chen, MD, PhD, AGAF.

Gender
Male 230
Female 252
Ethnicity
Non-Hispanic White 438
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 160
From 75 to 84 132
85 and over 34
Less than 65 156

Conditions of Medicare patients treated by Dr. Z. John Chen, MD, PhD, AGAF in 2015

Hypertension 64
High Cholesterol 45
Stroke 7
Ischemic Heart Disease 29
Depression 32
Chronic Kidney Disease 33
Asthma 13
Osteoperosis 7
Atrial Fibrilation 14
Heart Failure 18
Chronic Obstructive Pulmonary Disease 15
Diabetes 28
Dementia 10
Cancer 11

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Z. John Chen, MD, PhD, AGAF treated as a gastroenterologist in Coon Rapids, MN during 2016 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Z. John Chen, MD, PhD, AGAF for Medicare patients.

biological response modifier (BRM) therapy 17
blood draw 51
chemotherapy 17
diagnostic procedures 118
doctor visit 48
gastrointestinal procedures 142
hospital care 50
inpatient care 50
minimally invasive procedures 159
removal of lesion (e.g. growth) 118

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Z. John Chen, MD, PhD, AGAF.

Gender
Male 107
Female 123
Ethnicity
Non-Hispanic White 198
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 81
From 75 to 84 64
85 and over 13
Less than 65 72

Conditions of Medicare patients treated by Dr. Z. John Chen, MD, PhD, AGAF in 2016

Hypertension 58
High Cholesterol 44
Stroke 7
Ischemic Heart Disease 29
Depression 37
Chronic Kidney Disease 34
Asthma 24
Osteoperosis 7
Atrial Fibrilation 13
Heart Failure 18
Chronic Obstructive Pulmonary Disease 19
Diabetes 29
Dementia 9
Cancer 8

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Z. John Chen, MD, PhD, AGAF treated as a gastroenterologist in Coon Rapids, MN during 2017 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Z. John Chen, MD, PhD, AGAF for Medicare patients.

blood draw 28
diagnostic procedures 143
doctor visit 50
gastrointestinal procedures 155
hospital care 64
inpatient care 64
minimally invasive procedures 155
removal of lesion (e.g. growth) 143

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Z. John Chen, MD, PhD, AGAF.

Gender
Male 108
Female 140
Ethnicity
Non-Hispanic White 206
Black 16
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 90
From 75 to 84 64
85 and over 26
Less than 65 68

Conditions of Medicare patients treated by Dr. Z. John Chen, MD, PhD, AGAF in 2017

Hypertension 65
High Cholesterol 44
Stroke 0
Ischemic Heart Disease 33
Depression 32
Chronic Kidney Disease 41
Asthma 10
Osteoperosis 7
Atrial Fibrilation 13
Heart Failure 23
Chronic Obstructive Pulmonary Disease 16
Diabetes 33
Dementia 11
Cancer 13

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Z. John Chen, MD, PhD, AGAF treated as a gastroenterologist in Coon Rapids, MN during 2018 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Z. John Chen, MD, PhD, AGAF for Medicare patients.

blood draw 28
diagnostic procedures 152
doctor visit 60
gastrointestinal procedures 167
hospital care 38
inpatient care 38
lab tests 11
minimally invasive procedures 179
removal of lesion (e.g. growth) 152

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Z. John Chen, MD, PhD, AGAF.

Gender
Male 92
Female 134
Ethnicity
Non-Hispanic White 185
Black 14
Hispanic 0
Asian 0
Other 13
Native American 0
Age
From 65 to 74 97
From 75 to 84 53
85 and over 14
Less than 65 62

Conditions of Medicare patients treated by Dr. Z. John Chen, MD, PhD, AGAF in 2018

Hypertension 67
High Cholesterol 46
Stroke 0
Ischemic Heart Disease 31
Depression 39
Chronic Kidney Disease 35
Asthma 12
Osteoperosis 8
Atrial Fibrilation 14
Heart Failure 19
Chronic Obstructive Pulmonary Disease 16
Diabetes 32
Dementia 9
Cancer 12

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Z. John Chen, MD, PhD, AGAF treated as a gastroenterologist in Coon Rapids, MN during 2019 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Z. John Chen, MD, PhD, AGAF for Medicare patients.

biological response modifier (BRM) therapy 22
blood draw 40
chemotherapy 22
diagnostic procedures 223
doctor visit 101
gastrointestinal procedures 264
hospital care 68
inpatient care 68
lab tests 26
minimally invasive procedures 318
preventive care 16
removal of lesion (e.g. growth) 223

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Z. John Chen, MD, PhD, AGAF.

Gender
Male 153
Female 225
Ethnicity
Non-Hispanic White 345
Black 12
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 160
From 75 to 84 106
85 and over 34
Less than 65 78

Conditions of Medicare patients treated by Dr. Z. John Chen, MD, PhD, AGAF in 2019

Hypertension 63
High Cholesterol 48
Stroke 6
Ischemic Heart Disease 35
Depression 35
Chronic Kidney Disease 36
Asthma 8
Osteoperosis 8
Atrial Fibrilation 15
Heart Failure 21
Chronic Obstructive Pulmonary Disease 19
Diabetes 30
Dementia 10
Cancer 11

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Z. John Chen, MD, PhD, AGAF treated as a gastroenterologist in Coon Rapids, MN during 2020 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Z. John Chen, MD, PhD, AGAF for Medicare patients.

biological response modifier (BRM) therapy 32
blood draw 26
chemotherapy 32
diagnostic procedures 151
doctor visit 18
gastrointestinal procedures 164
hospital care 79
inpatient care 79
minimally invasive procedures 234
removal of lesion (e.g. growth) 151

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Z. John Chen, MD, PhD, AGAF.

Gender
Male 125
Female 176
Ethnicity
Non-Hispanic White 275
Black 0
Hispanic 0
Asian 0
Other 14
Native American 0
Age
From 65 to 74 153
From 75 to 84 73
85 and over 21
Less than 65 54

Conditions of Medicare patients treated by Dr. Z. John Chen, MD, PhD, AGAF in 2020

Hypertension 62
High Cholesterol 43
Stroke 0
Ischemic Heart Disease 34
Depression 35
Chronic Kidney Disease 34
Asthma 7
Osteoperosis 12
Atrial Fibrilation 11
Heart Failure 21
Chronic Obstructive Pulmonary Disease 19
Diabetes 27
Dementia 9
Cancer 15

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Z. John Chen, MD, PhD, AGAF treated as a gastroenterologist in Coon Rapids, MN during 2021 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Z. John Chen, MD, PhD, AGAF for Medicare patients.

blood draw 35
diagnostic procedures 189
doctor visit 50
esophageal dilation 13
gastrointestinal procedures 228
hospital care 60
inpatient care 60
minimally invasive procedures 262
preventive care 11
removal of lesion (e.g. growth) 189

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Z. John Chen, MD, PhD, AGAF.

Gender
Male 132
Female 208
Ethnicity
Non-Hispanic White 302
Black 15
Hispanic 0
Asian 0
Other 12
Native American 0
Age
From 65 to 74 156
From 75 to 84 94
85 and over 28
Less than 65 62

Conditions of Medicare patients treated by Dr. Z. John Chen, MD, PhD, AGAF in 2021

Hypertension 69
High Cholesterol 52
Stroke 4
Ischemic Heart Disease 36
Depression 35
Chronic Kidney Disease 39
Asthma 9
Osteoperosis 9
Atrial Fibrilation 12
Heart Failure 26
Chronic Obstructive Pulmonary Disease 16
Diabetes 36
Dementia 12
Cancer 14

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Z. John Chen, MD, PhD, AGAF treated as a gastroenterologist in Coon Rapids, MN during 2022 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Z. John Chen, MD, PhD, AGAF for Medicare patients.

biological response modifier (BRM) therapy 34
blood draw 24
chemotherapy 34
diagnostic procedures 161
doctor visit 39
gastrointestinal procedures 173
hospital care 31
inpatient care 31
minimally invasive procedures 253
removal of lesion (e.g. growth) 161

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Z. John Chen, MD, PhD, AGAF.

Gender
Male 121
Female 176
Ethnicity
Non-Hispanic White 266
Black 0
Hispanic 0
Asian 0
Other 12
Native American 0
Age
From 65 to 74 157
From 75 to 84 64
85 and over 19
Less than 65 57

Conditions of Medicare patients treated by Dr. Z. John Chen, MD, PhD, AGAF in 2022

Hypertension 68
High Cholesterol 62
Stroke 5
Ischemic Heart Disease 25
Depression 33
Chronic Kidney Disease 23
Asthma 14
Osteoperosis 11
Atrial Fibrilation 18
Heart Failure 20
Chronic Obstructive Pulmonary Disease 18
Diabetes 30
Dementia 5
Cancer 14

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Z. John Chen, MD, PhD, AGAF for Medicare patients.

The highest averages for the top procedures that Dr. Z. John Chen, MD, PhD, AGAF treated as a gastroenterologist in Coon Rapids, MN were minimally invasive procedures, gastrointestinal procedures, diagnostic procedures and removal of lesion (e.g. growth).

biological response modifier (BRM) therapy 26
blood draw 38
chemotherapy 26
diagnostic procedures 153
doctor visit 56
esophageal dilation 15
gastrointestinal procedures 183
hospital care 59
inpatient care 59
lab tests 16
minimally invasive procedures 210
preventive care 13
removal of lesion (e.g. growth) 153
thyroid function tests 12

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Z. John Chen, MD, PhD, AGAF.

Gender
Male 117
Female 160
Ethnicity
Black / African American 6
Asian / Pacific Islander 0
Non-Hispanic White 246
Native American / Alaskan Native 0
Hispanic 0
Other 4
Age
75 to 84 73
85 and over 20
Less than 65 68
65 to 74 115

Average of Total of Conditions of Medicare patients treated by Dr. Z. John Chen, MD, PhD, AGAF From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Z. John Chen, MD, PhD, AGAF treated were hypertension, high cholesterol, depression and chronic kidney disease.

Hypertension 58
High Cholesterol 44
Stroke 3
Ischemic Heart Disease 29
Depression 31
Chronic Kidney Disease 31
Asthma 11
Osteoporosis 7
Heart Failure 18
Chronic Obstructive Pulmonary Disease 15
Diabetes 28
Atrial Fibrillation 12
Dementia 8
Cancer 11

Education & Training

Dr. Z. John Chen, MD, PhD, AGAF graduated from Shanghai Medical University. He completed residency at University of Minnesota Affiliated Hospitals. He is certified by the American Board of Internal Medicine: Gastroenterology and has a state license in Minnesota.

Medical School: Shanghai Medical University

Residency: University of Minnesota Affiliated Hospitals

Board Certification: American Board of Internal Medicine: Gastroenterology

Licensed In: Minnesota

Affiliations & Hospitals

Dr. Z. John Chen, MD, PhD, AGAF is associated with these hospitals and organizations:

MNGI Digestive Health
MNGI DIGESTIVE HEALTH PA

Insurance Information

Please note: Insurance information may change at any time, and the provider may accept your insurance plan even if it is not listed below. Please contact the provider's office to confirm that your insurance is accepted.
Insurance Accepted by Affiliated Medical Group or Hospital:
America's PPO
Primewest
WI Medicaid
Triwest
Blue Cross/BlueShield
Medica
Blue Plus
Healthpartners
United Healthcare (except UHC Medicare Advantage Plan)
U-Care
MultiPlan
Group Health of Eau Claire
Hennepin Health
Medicare
Humana Choice Care
Allina Health/Aetna
Aetna
Medical Assistance
Beech Street
South Country Health Alliance

Ratings & Reviews

Dr. Z. John Chen, MD, PhD, AGAF has an exceptional overall rating with an average of 4.59 out of 5 stars based on 361 ratings. We collect ratings and reviews of Dr. Z. John Chen, MD, PhD, AGAF from all over the web to help you find the right in Coon Rapids, MN. 

4.59
Overall Rating
Leave a Review
Reviews From Around The Web
Overall Rating: 2.0 2024-05-23
Patient verified via Press Ganey
When he came into room after looking at my chart. One reply was you don't have A-fib! Then asked why I came. I had been seen many years ago by one of your doctors which was 20+ years ago. I gave the wrong answer. He said that was not on my old records. I asked what it said and he would not tell me the conversation ended quickly! I called scheduling the next day and made an appointment with someone else.
Overall Rating: 5.0 2024-06-07
Patient verified via Press Ganey
This is the best experience I have had with a specialist in a very long time, he treated me with care and compassion and did not dismiss my concerns, he did not talk down to me and treated me as a person not as an appointment
Overall Rating: 5.0 2025-02-08
Patient verified via Press Ganey
Dr Chen is excellent in care listening, and professionalism.
Overall Rating: 3.0 2023-12-11
Patient verified via Press Ganey
He seemed to be listening, but his notes were all wrong
Overall Rating: 5.0 2025-02-07
Patient verified via Press Ganey
Dr. Chen was amazing

General Payments

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

Payments by Company
Boston Scientific Corporation $100 Biliary Devices
$100
Gilead Sciences Inc $49 Sovaldi
$49
Takeda Pharmaceuticals America, Inc. $42 ENTYVIO
$42
Salix Pharmaceuticals, a division of Bausch Health US, LLC $35 XIFAXAN
$35
Alexion Pharmaceuticals, Inc. $14 Kanuma
$14
Types of Payments
Food and Beverage $225
Education $14

Biography

Dr. Zongyu Chen is a specialist in adult gastroenterology in Coon Rapids, MN. After completing medical school at Shanghai Medical University, he performed his residency at a hospital affiliated with the University of Minnesota. His clinical interests include gastrointestinal bleeding, peptic ulcer, and helicobacter pylori (H. pylori) infection. Patient ratings for Dr. Chen average 4.5 stars (out of 5). Dr. Chen speaks Mandarin. He is affiliated with MNGI Digestive Health. Doctor.com reports that he is accepting new patients at his office in Coon Rapids, MN.

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