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Dr. Howard Hao Zhang, MD

Accepting New Patients

(191 Ratings)

Specializes in: Adult Gastroenterology

6010 S MASON MONTGOMERY ROAD
MASON, OH 45040

(513) 853-9250

Dr. Howard Hao Zhang, MD is a gastroenterologist in MASON, OH specializing in adult gastroenterology. Dr. Howard Hao Zhang, MD is affiliated with TriHealth.

Office Locations

6010 S MASON MONTGOMERY ROAD
MASON, OH 45040

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10600 Montgomery Road Suite 300
Montgomery, OH 45242

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75 Arch Street Suite 301
Akron, OH 44304

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8240 Northcreek Drive Suite 1400
Cincinnati, OH 45236

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Noteworthy Medicare Patient Procedures Performed by Dr. Howard Hao Zhang, MD in 2023

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

Top 5%

By Volume:

colonoscopy with biopsy

colonoscopy with lesion removal

In 2023, Dr. Howard Hao Zhang, MD performed more colonoscopy with biopsy, and colonoscopy with lesion removal procedures for Medicare patients than 95% of providers in related specialties within Ohio.

Top 10%

By Volume:

colonoscopy

gastrointestinal biopsy

removal of lesion

In 2023, Dr. Howard Hao Zhang, MD performed more colonoscopy, gastrointestinal biopsy, and removal of lesion (e.g. growth) procedures for Medicare patients than 90% of providers in related specialties within Ohio.

Top 25%

By Volume:

endoscopy

gastrointestinal procedures

By Affordability:

diagnostic EGD

diagnostic upper endoscopy

EGD with biopsy

EGD with dilation

EGD with esophageal dilation

EGD with lesion removal

endoscopic esophageal dilation

esophageal dilation

esophagogastroduodenoscopy

therapeutic EGD

therapeutic upper endoscopy

upper endoscopy

upper endoscopy with biopsy

upper endoscopy with dilation

upper endoscopy with esophageal dilation

upper endoscopy with lesion removal

In 2012, among providers in related specialties within Ohio, Dr. Howard Hao Zhang, MD performed more endoscopy, and gastrointestinal procedures procedures for Medicare patients than 75% of them and he also had a list price for diagnostic EGD, diagnostic upper endoscopy, EGD with biopsy, EGD with dilation, EGD with esophageal dilation, EGD with lesion removal, endoscopic esophageal dilation, esophageal dilation, esophagogastroduodenoscopy (EGD), therapeutic EGD, therapeutic upper endoscopy, upper endoscopy, upper endoscopy with biopsy, upper endoscopy with dilation, upper endoscopy with esophageal dilation, 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. Howard Hao Zhang, MD treated as a gastroenterologist in MASON, OH during 2012 were removal of lesion (e.g. growth), minimally invasive procedures, diagnostic procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Howard Hao Zhang, MD for Medicare patients.

diagnostic procedures	26
gastrointestinal procedures	26
minimally invasive procedures	26
removal of lesion (e.g. growth)	26

Medicare Procedure and Patient Information

Conditions of Medicare patients treated by Dr. Howard Hao Zhang, MD in 2013

Hypertension	52
High Cholesterol	0
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

Conditions of Medicare patients treated by Dr. Howard Hao Zhang, MD in 2014

Hypertension	50
High Cholesterol	0
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Howard Hao Zhang, MD treated as a gastroenterologist in MASON, OH during 2015 were removal of lesion (e.g. growth), minimally invasive procedures, diagnostic procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Howard Hao Zhang, MD for Medicare patients.

diagnostic procedures	12
gastrointestinal procedures	12
minimally invasive procedures	12
removal of lesion (e.g. growth)	12

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Howard Hao Zhang, MD.

**Gender**
Male	26
Female	30

**Age**
From 65 to 74	26
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Howard Hao Zhang, MD in 2015

Hypertension	43
High Cholesterol	0
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	39
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Howard Hao Zhang, MD treated as a gastroenterologist in MASON, OH during 2016 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Howard Hao Zhang, MD for Medicare patients.

diagnostic procedures	185
doctor visit	90
gastrointestinal procedures	225
hospital care	210
inpatient care	210
minimally invasive procedures	225
preventive care	14
removal of lesion (e.g. growth)	185

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Howard Hao Zhang, MD.

**Gender**
Male	131
Female	174

**Ethnicity**
Non-Hispanic White	248
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	109
From 75 to 84	74
85 and over	41
Less than 65	81

Conditions of Medicare patients treated by Dr. Howard Hao Zhang, MD in 2016

Hypertension	75
High Cholesterol	63
Stroke	7
Ischemic Heart Disease	48
Depression	43
Chronic Kidney Disease	46
Asthma	32
Osteoperosis	10
Atrial Fibrilation	19
Heart Failure	35
Chronic Obstructive Pulmonary Disease	31
Diabetes	37
Dementia	16
Cancer	11

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Howard Hao Zhang, MD treated as a gastroenterologist in MASON, OH during 2017 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Howard Hao Zhang, MD for Medicare patients.

diagnostic procedures	238
doctor visit	83
gastrointestinal procedures	277
hospital care	286
injections	12
inpatient care	286
minimally invasive procedures	277
removal of lesion (e.g. growth)	238

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Howard Hao Zhang, MD.

**Gender**
Male	159
Female	179

**Ethnicity**
Non-Hispanic White	275
Black	52
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	118
From 75 to 84	70
85 and over	58
Less than 65	92

Conditions of Medicare patients treated by Dr. Howard Hao Zhang, MD in 2017

Hypertension	75
High Cholesterol	60
Stroke	10
Ischemic Heart Disease	51
Depression	48
Chronic Kidney Disease	57
Asthma	14
Osteoperosis	10
Atrial Fibrilation	22
Heart Failure	41
Chronic Obstructive Pulmonary Disease	37
Diabetes	39
Dementia	17
Cancer	14

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Howard Hao Zhang, MD treated as a gastroenterologist in MASON, OH during 2018 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Howard Hao Zhang, MD for Medicare patients.

diagnostic procedures	254
doctor visit	73
gastrointestinal procedures	282
hospital care	155
injections	13
inpatient care	155
minimally invasive procedures	282
removal of lesion (e.g. growth)	254

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Howard Hao Zhang, MD.

**Gender**
Male	128
Female	141

**Ethnicity**
Non-Hispanic White	210
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	104
From 75 to 84	58
85 and over	25
Less than 65	82

Conditions of Medicare patients treated by Dr. Howard Hao Zhang, MD in 2018

Hypertension	75
High Cholesterol	63
Stroke	5
Ischemic Heart Disease	46
Depression	43
Chronic Kidney Disease	53
Asthma	13
Osteoperosis	8
Atrial Fibrilation	17
Heart Failure	33
Chronic Obstructive Pulmonary Disease	33
Diabetes	38
Dementia	18
Cancer	11

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Howard Hao Zhang, MD treated as a gastroenterologist in MASON, OH during 2019 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Howard Hao Zhang, MD for Medicare patients.

diagnostic procedures	236
doctor visit	68
gastrointestinal procedures	247
hospital care	123
injections	11
inpatient care	123
minimally invasive procedures	247
removal of lesion (e.g. growth)	236

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Howard Hao Zhang, MD.

**Gender**
Male	117
Female	141

**Ethnicity**
Non-Hispanic White	212
Black	35
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	92
From 75 to 84	64
85 and over	23
Less than 65	79

Conditions of Medicare patients treated by Dr. Howard Hao Zhang, MD in 2019

Hypertension	75
High Cholesterol	62
Stroke	9
Ischemic Heart Disease	43
Depression	45
Chronic Kidney Disease	49
Asthma	17
Osteoperosis	11
Atrial Fibrilation	16
Heart Failure	35
Chronic Obstructive Pulmonary Disease	33
Diabetes	36
Dementia	17
Cancer	13

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Howard Hao Zhang, MD treated as a gastroenterologist in MASON, OH during 2020 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Howard Hao Zhang, MD for Medicare patients.

diagnostic procedures	169
doctor visit	18
esophageal dilation	12
gastrointestinal procedures	192
hospital care	90
injections	11
inpatient care	90
minimally invasive procedures	192
removal of lesion (e.g. growth)	169

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Howard Hao Zhang, MD.

**Gender**
Male	108
Female	122

**Ethnicity**
Non-Hispanic White	192
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	117
From 75 to 84	42
85 and over	20
Less than 65	51

Conditions of Medicare patients treated by Dr. Howard Hao Zhang, MD in 2020

Hypertension	68
High Cholesterol	59
Stroke	7
Ischemic Heart Disease	43
Depression	47
Chronic Kidney Disease	45
Asthma	10
Osteoperosis	10
Atrial Fibrilation	16
Heart Failure	29
Chronic Obstructive Pulmonary Disease	29
Diabetes	37
Dementia	14
Cancer	10

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Howard Hao Zhang, MD treated as a gastroenterologist in MASON, OH during 2021 were removal of lesion (e.g. growth), minimally invasive procedures, diagnostic procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Howard Hao Zhang, MD for Medicare patients.

diagnostic procedures	179
doctor visit	28
gastrointestinal procedures	179
hospital care	117
inpatient care	117
minimally invasive procedures	179
removal of lesion (e.g. growth)	179

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Howard Hao Zhang, MD.

**Gender**
Male	115
Female	104

**Ethnicity**
Non-Hispanic White	184
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	105
From 75 to 84	54
85 and over	19
Less than 65	41

Conditions of Medicare patients treated by Dr. Howard Hao Zhang, MD in 2021

Hypertension	75
High Cholesterol	74
Stroke	5
Ischemic Heart Disease	49
Depression	41
Chronic Kidney Disease	45
Asthma	10
Osteoperosis	11
Atrial Fibrilation	16
Heart Failure	30
Chronic Obstructive Pulmonary Disease	29
Diabetes	34
Dementia	16
Cancer	15

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Howard Hao Zhang, MD treated as a gastroenterologist in MASON, OH during 2022 were removal of lesion (e.g. growth), minimally invasive procedures, diagnostic procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Howard Hao Zhang, MD for Medicare patients.

diagnostic procedures	372
doctor visit	111
gastrointestinal procedures	372
hospital care	35
inpatient care	35
minimally invasive procedures	372
removal of lesion (e.g. growth)	372

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Howard Hao Zhang, MD.

**Gender**
Male	150
Female	164

**Ethnicity**
Non-Hispanic White	266
Black	0
Hispanic	0
Asian	0
Other	24
Native American	0

**Age**
From 65 to 74	193
From 75 to 84	86
85 and over	15
Less than 65	20

Conditions of Medicare patients treated by Dr. Howard Hao Zhang, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	10
Ischemic Heart Disease	27
Depression	23
Chronic Kidney Disease	22
Asthma	15
Osteoperosis	13
Atrial Fibrilation	22
Heart Failure	18
Chronic Obstructive Pulmonary Disease	13
Diabetes	30
Dementia	8
Cancer	15

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Howard Hao Zhang, MD for Medicare patients.

The highest averages for the top procedures that Dr. Howard Hao Zhang, MD treated as a gastroenterologist in MASON, OH were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

diagnostic procedures	185
doctor visit	67
esophageal dilation	12
gastrointestinal procedures	201
hospital care	145
injections	11
inpatient care	145
minimally invasive procedures	201
preventive care	14
removal of lesion (e.g. growth)	185

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Howard Hao Zhang, MD.

**Gender**
Female	95
Male	84

**Ethnicity**
Black / African American	7
Asian / Pacific Islander	0
Non-Hispanic White	144
Hispanic	0
Native American / Alaskan Native	0
Other	2

**Age**
85 and over	18
75 to 84	40
Less than 65	40
65 to 74	78

Average of Total of Conditions of Medicare patients treated by Dr. Howard Hao Zhang, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Howard Hao Zhang, MD treated were hypertension, high cholesterol, chronic kidney disease and ischemic heart disease.

Hypertension	60
High Cholesterol	41
Stroke	4
Ischemic Heart Disease	27
Depression	26
Chronic Kidney Disease	32
Asthma	10
Osteoporosis	6
Heart Failure	20
Chronic Obstructive Pulmonary Disease	18
Diabetes	22
Atrial Fibrillation	11
Dementia	9
Cancer	8

Education & Training

He completed residency at UNC Hospitals. He is certified by the American Board of Internal Medicine | Other, American Board of Internal Medicine | Board, Gastroenterology and has a state license in Ohio.

Residency: UNC Hospitals (2003)

Board Certification: American Board of Internal Medicine | Other, American Board of Internal Medicine | Board, Gastroenterology (2003)

Licensed In: Ohio

Affiliations & Hospitals

Dr. Howard Hao Zhang, MD is associated with these hospitals and organizations:

TriHealth

Ratings & Reviews

Dr. Howard Hao Zhang, MD has an exceptional overall rating with an average of 4.9 out of 5 stars based on 191 ratings. We collect ratings and reviews of Dr. Howard Hao Zhang, MD from all over the web to help you find the right in MASON, OH.

4.9

Overall Rating

(191 Ratings)

Leave a Review

Reviews From Around The Web

Overall Rating: 5.0 2025-12-04

Patient verified via Press Ganey

Dr. Zhang, upon request of my family physician, scheduled my office visit immediately (for the next day). He was very personal, calm and concerned. He was also very professional and punctual. Overall - excellent visit.

Overall Rating: 5.0 2025-06-09

Patient verified via Press Ganey

Yes! I highly recommend Good Samaritan Endoscopy Center North. Very glad I could gain valueable insight on my health with your services and team!! Thank you!!

Overall Rating: 4.0 2025-02-28

Patient verified via Press Ganey

Dr. Zhang explained my problem and agreed (with me) that it would be best to wait to see if problem continues before going on with procedure.

Overall Rating: 5.0 2026-03-12

Patient verified via Press Ganey

Dr Zhang was very professional and thorough. He made sure I understood his care instructions and medical terminology. Easy to talk with.

Overall Rating: 5.0 2024-11-26

Patient verified via Press Ganey

Dr. Zhang explained options & diagnosis well to me & my mom. Very knowledgeable & takes his time for you to understand.

Overall Rating: 5.0 2025-09-26

Patient verified via Press Ganey

I am so very grateful to my Dr. And nursing staff and also to the scheduling staff. All very pro and welcoming.

Overall Rating: 5.0 2025-03-13

Patient verified via Press Ganey

The front desk attendant was amazing! Everyone was very kind.

Overall Rating: 5.0 2025-03-25

Patient verified via Press Ganey

Excellent care

General Payments

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

**Payments by Company**
AbbVie Inc.	$1,383 Skyrizi $422	Rinvoq $363	Humira $351	Creon $153	LINZESS $62	Other $32
Janssen Biotech, Inc.	$1,178 STELARA $823	SIMPONI $311	SIMPONI ARIA $44
AbbVie, Inc.	$1,145 Viekira $268	Mavyret $233	Creon $215	Humira $205	$223
Janssen Scientific Affairs, LLC	$510 REMICADE $304	STELARA $189	SIMPONI $17
Takeda Pharmaceuticals U.S.A., Inc.	$356 ENTYVIO $326	MOTEGRITY $30
Other	$3,036 Non-Franchise (NOF) - R&D $300	New Product Development $290	VIBERZI $207	ERBE VIO3 $200	ZEPOSIA $176	Other $1,863

**Types of Payments**
Food and Beverage	$6,601
Consulting Fee	$510
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$300
Education	$198

Biography

Dr. Howard Zhang is a specialist in adult gastroenterology. He is affiliated with TriHealth. He trained at UNC Hospitals for residency. Dr. Zhang is rated 5.0 stars (out of 5) by his patients. His practice in Akron, OH is open to new patients as reported by Doctor.com.