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Dr. Wei-Fang J. Ko, MD

Accepting New Patients

(Dr. Wei-Fang Ko, M.D.)

(6 Ratings)

Specializes in: Adult Gastroenterology

Taipei Medical University

27206 Calaroga Avenue Suite 212
Hayward, CA 94545

(510) 887-1777

Dr. Wei-Fang J. Ko, MD is a gastroenterologist in Ste G San Leandro, CA specializing in adult gastroenterology. He graduated from Taipei Medical University. Dr. Wei-Fang J. Ko, MD is affiliated with Sutter Health and Hill Physicians.

Office Locations

Hill Physicians

15035 E 14th Street
Ste G San Leandro, CA 94578

(510) 537-4415

open_in_new

19845 Lake Chabot Road Suite 104
Castro Valley, CA 94546

open_in_new

Hill Physicians

27206 Calaroga Avenue Suite 212
Hayward, CA 94545

(510) 887-1777

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Noteworthy Medicare Patient Procedures Performed by Dr. Wei-Fang J. Ko, MD in 2023

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

Top 5%

By Affordability:

diagnostic EGD without biopsy

In 2023, Dr. Wei-Fang J. Ko, MD had a list price for diagnostic EGD without biopsy 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:

diagnostic EGD

diagnostic upper endoscopy

EGD with biopsy

EGD with lesion removal

esophagogastroduodenoscopy

hospital care

inpatient care

inpatient hospital care

therapeutic EGD

therapeutic upper endoscopy

upper endoscopy

upper endoscopy with biopsy

upper endoscopy with lesion removal

In 2023, Dr. Wei-Fang J. Ko, MD had a list price for diagnostic EGD, diagnostic upper endoscopy, EGD with biopsy, EGD with lesion removal, esophagogastroduodenoscopy (EGD), hospital care, inpatient care, inpatient hospital care (for patient admitted to hospital), 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 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.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Wei-Fang J. Ko, MD treated as a gastroenterologist in Ste G San Leandro, CA during 2012 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Wei-Fang J. Ko, MD for Medicare patients.

diagnostic procedures	171
doctor visit	309
gastrointestinal procedures	214
hospital care	393
inpatient care	393
minimally invasive procedures	214
preventive care	43
removal of lesion (e.g. growth)	171

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Wei-Fang J. Ko, MD treated as a gastroenterologist in Ste G San Leandro, CA during 2013 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Wei-Fang J. Ko, MD for Medicare patients.

diagnostic procedures	222
doctor visit	348
gastrointestinal procedures	285
hospital care	433
inpatient care	433
minimally invasive procedures	285
preventive care	52
removal of lesion (e.g. growth)	222

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Wei-Fang J. Ko, MD.

**Gender**
Male	212
Female	244

**Ethnicity**
Non-Hispanic White	193
Black	0
Hispanic	80
Asian	129
Other	0
Native American	0

**Age**
From 65 to 74	174
From 75 to 84	121
85 and over	93
Less than 65	68

Conditions of Medicare patients treated by Dr. Wei-Fang J. Ko, MD in 2013

Hypertension	75
High Cholesterol	62
Stroke	9
Ischemic Heart Disease	40
Depression	20
Chronic Kidney Disease	38
Asthma	9
Osteoperosis	14
Atrial Fibrilation	16
Heart Failure	28
Chronic Obstructive Pulmonary Disease	16
Diabetes	42
Dementia	20
Cancer	13

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Wei-Fang J. Ko, MD treated as a gastroenterologist in Ste G San Leandro, CA during 2014 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Wei-Fang J. Ko, MD for Medicare patients.

diagnostic procedures	219
doctor visit	348
gastrointestinal procedures	272
hospital care	443
inpatient care	443
minimally invasive procedures	272
preventive care	40
removal of lesion (e.g. growth)	219

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Wei-Fang J. Ko, MD.

**Gender**
Male	171
Female	249

**Ethnicity**
Non-Hispanic White	166
Black	46
Hispanic	70
Asian	127
Other	0
Native American	0

**Age**
From 65 to 74	165
From 75 to 84	141
85 and over	63
Less than 65	51

Conditions of Medicare patients treated by Dr. Wei-Fang J. Ko, MD in 2014

Hypertension	75
High Cholesterol	63
Stroke	12
Ischemic Heart Disease	41
Depression	23
Chronic Kidney Disease	37
Asthma	11
Osteoperosis	11
Atrial Fibrilation	15
Heart Failure	27
Chronic Obstructive Pulmonary Disease	18
Diabetes	46
Dementia	20
Cancer	15

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Wei-Fang J. Ko, MD treated as a gastroenterologist in Ste G San Leandro, CA during 2015 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Wei-Fang J. Ko, MD for Medicare patients.

diagnostic procedures	162
doctor visit	372
gastrointestinal procedures	221
hospital care	305
inpatient care	305
minimally invasive procedures	221
preventive care	41
removal of lesion (e.g. growth)	162

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Wei-Fang J. Ko, MD.

**Gender**
Male	330
Female	446

**Ethnicity**
Non-Hispanic White	302
Black	0
Hispanic	110
Asian	256
Other	0
Native American	0

**Age**
From 65 to 74	340
From 75 to 84	234
85 and over	108
Less than 65	94

Conditions of Medicare patients treated by Dr. Wei-Fang J. Ko, MD in 2015

Hypertension	75
High Cholesterol	61
Stroke	10
Ischemic Heart Disease	40
Depression	24
Chronic Kidney Disease	39
Asthma	16
Osteoperosis	12
Atrial Fibrilation	14
Heart Failure	28
Chronic Obstructive Pulmonary Disease	17
Diabetes	43
Dementia	14
Cancer	11

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Wei-Fang J. Ko, MD treated as a gastroenterologist in Ste G San Leandro, CA during 2016 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Wei-Fang J. Ko, MD for Medicare patients.

diagnostic procedures	195
doctor visit	390
gastrointestinal procedures	278
hospital care	308
inpatient care	308
minimally invasive procedures	278
preventive care	59
removal of lesion (e.g. growth)	195

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Wei-Fang J. Ko, MD.

**Gender**
Male	192
Female	233

**Ethnicity**
Non-Hispanic White	164
Black	42
Hispanic	74
Asian	130
Other	0
Native American	0

**Age**
From 65 to 74	185
From 75 to 84	120
85 and over	58
Less than 65	62

Conditions of Medicare patients treated by Dr. Wei-Fang J. Ko, MD in 2016

Hypertension	75
High Cholesterol	65
Stroke	9
Ischemic Heart Disease	41
Depression	24
Chronic Kidney Disease	44
Asthma	20
Osteoperosis	12
Atrial Fibrilation	14
Heart Failure	30
Chronic Obstructive Pulmonary Disease	16
Diabetes	43
Dementia	15
Cancer	14

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Wei-Fang J. Ko, MD treated as a gastroenterologist in Ste G San Leandro, CA during 2017 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Wei-Fang J. Ko, MD for Medicare patients.

diagnostic procedures	216
doctor visit	511
gastrointestinal procedures	305
hospital care	366
inpatient care	366
minimally invasive procedures	305
preventive care	60
removal of lesion (e.g. growth)	216

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Wei-Fang J. Ko, MD.

**Gender**
Male	203
Female	282

**Ethnicity**
Non-Hispanic White	184
Black	51
Hispanic	80
Asian	148
Other	0
Native American	0

**Age**
From 65 to 74	224
From 75 to 84	148
85 and over	65
Less than 65	48

Conditions of Medicare patients treated by Dr. Wei-Fang J. Ko, MD in 2017

Hypertension	75
High Cholesterol	58
Stroke	10
Ischemic Heart Disease	39
Depression	20
Chronic Kidney Disease	49
Asthma	10
Osteoperosis	13
Atrial Fibrilation	15
Heart Failure	31
Chronic Obstructive Pulmonary Disease	18
Diabetes	42
Dementia	15
Cancer	17

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Wei-Fang J. Ko, MD treated as a gastroenterologist in Ste G San Leandro, CA during 2018 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Wei-Fang J. Ko, MD for Medicare patients.

diagnostic procedures	223
doctor visit	474
gastrointestinal procedures	312
hospital care	313
inpatient care	313
minimally invasive procedures	312
preventive care	64
removal of lesion (e.g. growth)	223

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Wei-Fang J. Ko, MD.

**Gender**
Male	192
Female	273

**Ethnicity**
Non-Hispanic White	166
Black	43
Hispanic	70
Asian	167
Other	19
Native American	0

**Age**
From 65 to 74	227
From 75 to 84	124
85 and over	60
Less than 65	54

Conditions of Medicare patients treated by Dr. Wei-Fang J. Ko, MD in 2018

Hypertension	75
High Cholesterol	69
Stroke	8
Ischemic Heart Disease	34
Depression	23
Chronic Kidney Disease	49
Asthma	10
Osteoperosis	11
Atrial Fibrilation	15
Heart Failure	30
Chronic Obstructive Pulmonary Disease	14
Diabetes	43
Dementia	13
Cancer	15

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Wei-Fang J. Ko, MD treated as a gastroenterologist in Ste G San Leandro, CA during 2019 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Wei-Fang J. Ko, MD for Medicare patients.

diagnostic procedures	248
doctor visit	484
gastrointestinal procedures	321
hospital care	267
inpatient care	267
minimally invasive procedures	321
preventive care	57
removal of lesion (e.g. growth)	248

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Wei-Fang J. Ko, MD.

**Gender**
Male	221
Female	283

**Ethnicity**
Non-Hispanic White	165
Black	52
Hispanic	74
Asian	195
Other	18
Native American	0

**Age**
From 65 to 74	254
From 75 to 84	140
85 and over	56
Less than 65	54

Conditions of Medicare patients treated by Dr. Wei-Fang J. Ko, MD in 2019

Hypertension	75
High Cholesterol	68
Stroke	9
Ischemic Heart Disease	34
Depression	20
Chronic Kidney Disease	44
Asthma	9
Osteoperosis	14
Atrial Fibrilation	12
Heart Failure	25
Chronic Obstructive Pulmonary Disease	14
Diabetes	39
Dementia	15
Cancer	12

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Wei-Fang J. Ko, MD treated as a gastroenterologist in Ste G San Leandro, CA during 2020 were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

Volume of procedures performed by Dr. Wei-Fang J. Ko, MD for Medicare patients.

diagnostic procedures	121
doctor visit	374
gastrointestinal procedures	157
hospital care	270
inpatient care	270
minimally invasive procedures	157
preventive care	23
removal of lesion (e.g. growth)	121

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Wei-Fang J. Ko, MD.

**Gender**
Male	185
Female	224

**Ethnicity**
Non-Hispanic White	135
Black	41
Hispanic	71
Asian	145
Other	0
Native American	0

**Age**
From 65 to 74	186
From 75 to 84	119
85 and over	57
Less than 65	47

Conditions of Medicare patients treated by Dr. Wei-Fang J. Ko, MD in 2020

Hypertension	75
High Cholesterol	67
Stroke	8
Ischemic Heart Disease	37
Depression	22
Chronic Kidney Disease	48
Asthma	11
Osteoperosis	14
Atrial Fibrilation	15
Heart Failure	27
Chronic Obstructive Pulmonary Disease	17
Diabetes	41
Dementia	15
Cancer	12

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Wei-Fang J. Ko, MD treated as a gastroenterologist in Ste G San Leandro, CA during 2021 were minimally invasive procedures, gastrointestinal procedures, hospital care and inpatient care.

Volume of procedures performed by Dr. Wei-Fang J. Ko, MD for Medicare patients.

diagnostic procedures	169
doctor visit	492
gastrointestinal procedures	239
hospital care	234
inpatient care	234
minimally invasive procedures	239
preventive care	55
removal of lesion (e.g. growth)	169

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Wei-Fang J. Ko, MD.

**Gender**
Male	197
Female	270

**Ethnicity**
Non-Hispanic White	136
Black	41
Hispanic	55
Asian	215
Other	0
Native American	0

**Age**
From 65 to 74	227
From 75 to 84	147
85 and over	55
Less than 65	38

Conditions of Medicare patients treated by Dr. Wei-Fang J. Ko, MD in 2021

Hypertension	75
High Cholesterol	70
Stroke	8
Ischemic Heart Disease	31
Depression	17
Chronic Kidney Disease	44
Asthma	9
Osteoperosis	14
Atrial Fibrilation	14
Heart Failure	27
Chronic Obstructive Pulmonary Disease	13
Diabetes	40
Dementia	13
Cancer	12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Wei-Fang J. Ko, MD treated as a gastroenterologist in Ste G San Leandro, CA during 2022 were minimally invasive procedures, gastrointestinal procedures, removal of lesion (e.g. growth) and diagnostic procedures.

Volume of procedures performed by Dr. Wei-Fang J. Ko, MD for Medicare patients.

diagnostic procedures	222
doctor visit	493
gastrointestinal procedures	293
hospital care	186
inpatient care	186
minimally invasive procedures	293
preventive care	55
removal of lesion (e.g. growth)	222

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Wei-Fang J. Ko, MD.

**Gender**
Male	199
Female	290

**Ethnicity**
Non-Hispanic White	134
Black	43
Hispanic	69
Asian	222
Other	21
Native American	0

**Age**
From 65 to 74	240
From 75 to 84	154
85 and over	51
Less than 65	44

Conditions of Medicare patients treated by Dr. Wei-Fang J. Ko, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	10
Ischemic Heart Disease	22
Depression	17
Chronic Kidney Disease	31
Asthma	13
Osteoperosis	17
Atrial Fibrilation	15
Heart Failure	21
Chronic Obstructive Pulmonary Disease	14
Diabetes	45
Dementia	8
Cancer	14

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Wei-Fang J. Ko, MD for Medicare patients.

The highest averages for the top procedures that Dr. Wei-Fang J. Ko, MD treated as a gastroenterologist in Ste G San Leandro, CA were hospital care, inpatient care, minimally invasive procedures and gastrointestinal procedures.

diagnostic procedures	197
doctor visit	417
gastrointestinal procedures	263
hospital care	319
inpatient care	319
minimally invasive procedures	263
preventive care	49
removal of lesion (e.g. growth)	197

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Wei-Fang J. Ko, MD.

**Gender**
Female	254
Male	191

**Ethnicity**
Black / African American	32
Asian / Pacific Islander	157
Non-Hispanic White	158
Native American / Alaskan Native	0
Hispanic	68
Other	5

**Age**
85 and over	60
75 to 84	131
Less than 65	50
65 to 74	202

Average of Total of Conditions of Medicare patients treated by Dr. Wei-Fang J. Ko, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Wei-Fang J. Ko, MD treated were hypertension, high cholesterol, chronic kidney disease and diabetes.

Hypertension	68
High Cholesterol	59
Stroke	8
Ischemic Heart Disease	32
Depression	19
Chronic Kidney Disease	38
Asthma	10
Osteoporosis	12
Heart Failure	24
Chronic Obstructive Pulmonary Disease	14
Diabetes	38
Atrial Fibrillation	13
Dementia	13
Cancer	12

Education & Training

Dr. Wei-Fang J. Ko, MD graduated from Taipei Medical University. He completed residency at University of Minnesota Medical Center, Fairview. He is certified by the Gastroenterology - Board Certified and has a state license in California.

Medical School: Taipei Medical University

Residency: University of Minnesota Medical Center, Fairview

Board Certification: Gastroenterology - Board Certified

Licensed In: California

Affiliations & Hospitals

Dr. Wei-Fang J. Ko, MD is associated with these hospitals and organizations:

Sutter Health

Hill Physicians

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.

Dr. Wei-Fang J. Ko, MD appears to accept the following insurance providers: Cigna, Aetna, Blue Shield of California, UnitedHealthcare, SCAN Health Plan, Anthem, Health Net, Hill Physicians Care Solutions, Central Health Plan, CCHP Health Plan (Chinese Community Health Plan) and Canopy Health.

Insurance Accepted by Provider includes:

According to our sources, Dr. Wei-Fang J. Ko, MD accepts the following insurance providers:

Cigna

Aetna

Blue Shield of California

UnitedHealthcare

SCAN Health Plan

Anthem

Health Net

Hill Physicians Care Solutions

Central Health Plan

CCHP Health Plan (Chinese Community Health Plan)

Canopy Health

Ratings & Reviews

Dr. Wei-Fang J. Ko, MD has an average of 1.67 out of 5 stars based on 6 ratings. We collect ratings and reviews of Dr. Wei-Fang J. Ko, MD from all over the web to help you find the right in Ste G San Leandro, CA.

1.67

Overall Rating

(6 Ratings)

Leave a Review

Biography

Dr. Wei-Fang Ko is an adult gastroenterology specialist in Castro Valley, CA, Hayward, CA, and San Leandro, CA. He is rated 1.5 stars (out of 5) by his patients. His professional affiliations include Eden Medical Center, Brown and Toland Physicians, and Hill Physicians. Blue Shield, Health Net, and Anthem are among the insurance carriers that Dr. Ko honors. Hill Physicians reports that he is accepting new patients at his office in Castro Valley, CA. Before completing his residency at the University of Minnesota Medical Center, Fairview, Dr. Ko attended medical school at Taipei Medical University. He is conversant in Mandarin.

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Dr. Wei-Fang J. Ko, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Wei-Fang J. Ko, MD in 2023

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. Wei-Fang J. Ko, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Wei-Fang J. Ko, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Wei-Fang J. Ko, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Wei-Fang J. Ko, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Wei-Fang J. Ko, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Wei-Fang J. Ko, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Wei-Fang J. Ko, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Wei-Fang J. Ko, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Wei-Fang J. Ko, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Wei-Fang J. Ko, 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. Wei-Fang J. Ko, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Insurance Information

Ratings & Reviews

Biography