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Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology

Accepting New Patients

(Andrew H. Ko, MD)

(270 Ratings)

Specializes in: Oncology (Cancer Care), Gastroenterology (Digestive System), General Practice and Medical Oncology

Johns Hopkins University School of Medicine

Professional interests include: stomach cancer, bile duct cancer (cholangiocarcinoma), esophageal cancer, and more.

1825 4th Street Floor 4
San Francisco, CA 94143

(415) 353-9888

Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology is an oncologist in San Francisco, CA specializing in oncology (cancer care), gastroenterology (digestive system), general practice and medical oncology. He graduated from Johns Hopkins University School of Medicine. Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology is affiliated with UCSF Health, UCSF Medical Group, UCSF, Hill Physicians and Gastrointestinal Medical Oncology Clinic.

Office Locations

1825 4th Street Floor 4
San Francisco, CA 94143

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1825 FOURTH STREET FOURTH FLOOR
SAN FRANCISCO, CA 94158

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Hill Physicians

1600 Divisadero Street Suite 4
San Francisco, CA 94115

(415) 353-9888

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In The News (see more mentions in the news)

“Results of the trial, combined with other recent studies, suggest "we're on the cusp of a potentially transformative time in the treatment of pancreatic cancer with the development of a number of...”—"Targeted Drug for Advanced Pancreatic Cancer Sparks Early Enthusiasm", MedPage Today, January 2026

“"Impressive," "exciting," said ASCO-invited discussant Andrew Ko, MD, of the University of California San Francisco Cancer Center, in characterizing the results.”—"Novel Anti-HER2 Drugs 'Impressive' in Advanced Biliary Cancer", MedPage Today, June 2023

“The outcome surprised invited discussant Andrew H. Ko, MD, of the University of California San Francisco, and he agreed that they do not support neoadjuvant FOLFIRINOX as an alternative to upfront...”—"Neoadjuvant Chemo Flops Versus Upfront Surgery for Resectable Pancreatic Cancer", MedPage Today, June 2023

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Volume of procedures performed by Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology for Medicare patients.

doctor visit	391

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

Volume of procedures performed by Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology for Medicare patients.

doctor visit	415

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology.

**Gender**
Male	97
Female	79

**Ethnicity**
Non-Hispanic White	106
Black	12
Hispanic	0
Asian	40
Other	0
Native American	0

**Age**
From 65 to 74	99
From 75 to 84	48
85 and over	11
Less than 65	18

Conditions of Medicare patients treated by Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology in 2013

Hypertension	55
High Cholesterol	39
Stroke	0
Ischemic Heart Disease	24
Depression	18
Chronic Kidney Disease	28
Asthma	0
Osteoperosis	0
Atrial Fibrilation	11
Heart Failure	13
Chronic Obstructive Pulmonary Disease	11
Diabetes	24
Dementia	0
Cancer	40

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

Volume of procedures performed by Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology for Medicare patients.

doctor visit	389

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology.

**Gender**
Male	95
Female	65

**Ethnicity**
Non-Hispanic White	100
Black	12
Hispanic	0
Asian	31
Other	0
Native American	0

**Age**
From 65 to 74	88
From 75 to 84	49
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology in 2014

Hypertension	57
High Cholesterol	39
Stroke	0
Ischemic Heart Disease	23
Depression	19
Chronic Kidney Disease	31
Asthma	0
Osteoperosis	0
Atrial Fibrilation	8
Heart Failure	9
Chronic Obstructive Pulmonary Disease	10
Diabetes	31
Dementia	0
Cancer	34

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

Volume of procedures performed by Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology for Medicare patients.

doctor visit	446

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology.

**Gender**
Male	200
Female	128

**Ethnicity**
Non-Hispanic White	196
Black	0
Hispanic	32
Asian	74
Other	0
Native American	0

**Age**
From 65 to 74	184
From 75 to 84	92
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology in 2015

Hypertension	63
High Cholesterol	46
Stroke	0
Ischemic Heart Disease	27
Depression	25
Chronic Kidney Disease	32
Asthma	9
Osteoperosis	8
Atrial Fibrilation	9
Heart Failure	13
Chronic Obstructive Pulmonary Disease	9
Diabetes	38
Dementia	0
Cancer	31

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

Volume of procedures performed by Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology for Medicare patients.

doctor visit	423

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology.

**Gender**
Male	94
Female	63

**Ethnicity**
Non-Hispanic White	97
Black	0
Hispanic	0
Asian	35
Other	0
Native American	0

**Age**
From 65 to 74	88
From 75 to 84	50
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology in 2016

Hypertension	61
High Cholesterol	36
Stroke	0
Ischemic Heart Disease	28
Depression	24
Chronic Kidney Disease	27
Asthma	9
Osteoperosis	8
Atrial Fibrilation	10
Heart Failure	13
Chronic Obstructive Pulmonary Disease	7
Diabetes	29
Dementia	7
Cancer	23

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

Volume of procedures performed by Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology for Medicare patients.

doctor visit	385

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology.

**Gender**
Male	88
Female	70

**Ethnicity**
Non-Hispanic White	105
Black	0
Hispanic	0
Asian	32
Other	0
Native American	0

**Age**
From 65 to 74	79
From 75 to 84	58
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology in 2017

Hypertension	63
High Cholesterol	42
Stroke	0
Ischemic Heart Disease	30
Depression	20
Chronic Kidney Disease	34
Asthma	9
Osteoperosis	8
Atrial Fibrilation	16
Heart Failure	16
Chronic Obstructive Pulmonary Disease	9
Diabetes	32
Dementia	7
Cancer	30

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

Volume of procedures performed by Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology for Medicare patients.

doctor visit	385

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology.

**Gender**
Male	97
Female	68

**Ethnicity**
Non-Hispanic White	106
Black	14
Hispanic	0
Asian	32
Other	0
Native American	0

**Age**
From 65 to 74	96
From 75 to 84	53
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology in 2018

Hypertension	59
High Cholesterol	45
Stroke	0
Ischemic Heart Disease	27
Depression	18
Chronic Kidney Disease	36
Asthma	7
Osteoperosis	7
Atrial Fibrilation	12
Heart Failure	13
Chronic Obstructive Pulmonary Disease	11
Diabetes	34
Dementia	8
Cancer	30

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

Volume of procedures performed by Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology for Medicare patients.

doctor visit	421

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology.

**Gender**
Male	106
Female	74

**Ethnicity**
Non-Hispanic White	116
Black	0
Hispanic	0
Asian	42
Other	0
Native American	0

**Age**
From 65 to 74	91
From 75 to 84	67
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology in 2019

Hypertension	57
High Cholesterol	47
Stroke	0
Ischemic Heart Disease	29
Depression	23
Chronic Kidney Disease	39
Asthma	9
Osteoperosis	12
Atrial Fibrilation	13
Heart Failure	14
Chronic Obstructive Pulmonary Disease	11
Diabetes	35
Dementia	9
Cancer	27

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

Volume of procedures performed by Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology for Medicare patients.

doctor visit	362

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology.

**Gender**
Male	103
Female	102

**Ethnicity**
Non-Hispanic White	118
Black	0
Hispanic	0
Asian	57
Other	15
Native American	0

**Age**
From 65 to 74	101
From 75 to 84	84
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology in 2020

Hypertension	59
High Cholesterol	49
Stroke	7
Ischemic Heart Disease	30
Depression	22
Chronic Kidney Disease	34
Asthma	7
Osteoperosis	10
Atrial Fibrilation	10
Heart Failure	13
Chronic Obstructive Pulmonary Disease	9
Diabetes	34
Dementia	7
Cancer	29

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

Volume of procedures performed by Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology for Medicare patients.

doctor visit	489

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology.

**Gender**
Male	129
Female	120

**Ethnicity**
Non-Hispanic White	149
Black	0
Hispanic	0
Asian	65
Other	20
Native American	0

**Age**
From 65 to 74	118
From 75 to 84	93
85 and over	20
Less than 65	18

Conditions of Medicare patients treated by Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology in 2021

Hypertension	58
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	32
Depression	25
Chronic Kidney Disease	47
Asthma	8
Osteoperosis	12
Atrial Fibrilation	11
Heart Failure	14
Chronic Obstructive Pulmonary Disease	12
Diabetes	33
Dementia	7
Cancer	32

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

Volume of procedures performed by Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology for Medicare patients.

doctor visit	526

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology.

**Gender**
Male	117
Female	117

**Ethnicity**
Non-Hispanic White	150
Black	0
Hispanic	0
Asian	57
Other	16
Native American	0

**Age**
From 65 to 74	117
From 75 to 84	83
85 and over	15
Less than 65	19

Conditions of Medicare patients treated by Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology in 2022

Hypertension	69
High Cholesterol	57
Stroke	12
Ischemic Heart Disease	19
Depression	22
Chronic Kidney Disease	26
Asthma	10
Osteoperosis	20
Atrial Fibrilation	18
Heart Failure	13
Chronic Obstructive Pulmonary Disease	15
Diabetes	31
Dementia	0
Cancer	41

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology for Medicare patients.

doctor visit	421

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology.

**Gender**
Male	102
Female	80

**Ethnicity**
Black / African American	3
Asian / Pacific Islander	42
Non-Hispanic White	113
Native American / Alaskan Native	0
Hispanic	2
Other	4

**Age**
75 to 84	61
85 and over	4
Less than 65	5
65 to 74	96

Average of Total of Conditions of Medicare patients treated by Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology treated were hypertension, high cholesterol, chronic kidney disease and cancer.

Hypertension	54
High Cholesterol	41
Stroke	1
Ischemic Heart Disease	24
Depression	19
Chronic Kidney Disease	30
Asthma	6
Osteoporosis	7
Heart Failure	11
Chronic Obstructive Pulmonary Disease	9
Diabetes	29
Atrial Fibrillation	10
Dementia	4
Cancer	28

Education & Training

Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology graduated from Johns Hopkins University School of Medicine. He completed residency at Beth Israel Deaconess Medical Center. He is certified by the American Board of Internal Med/Medical Oncology, Medical Oncology and has a state license in California.

Medical School: Johns Hopkins University School of Medicine

Residency: Beth Israel Deaconess Medical Center

Board Certification: American Board of Internal Med/Medical Oncology, Medical Oncology

Licensed In: California

Affiliations & Hospitals

Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology is associated with these hospitals and organizations:

UCSF Health

UCSF Medical Group

UCSF

Hill Physicians

Gastrointestinal Medical Oncology Clinic

Ratings & Reviews

Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology has an exceptional overall rating with an average of 4.91 out of 5 stars based on 270 ratings. We collect ratings and reviews of Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology from all over the web to help you find the right in San Francisco, CA.

4.91

Overall Rating

(270 Ratings)

Leave a Review

Reviews From Around The Web

Overall Rating: 5.0 2025-02-20

Patient verified via Press Ganey

Dr. Ko is the best of the best. He oversees my care with goals in mind and explains a clear strategy to get there. I want to be very aggressive with my cancer and he has supported me every step of the way. He has accurately predicted my response to chemotherapy and has inspired me to have a very positive attitude by letting me know what to expect during treatment and he has reassured me about all of my concerns. Dr. Ko is a very gifted, honest and compassionate oncologist.

Overall Rating: 5.0 2026-01-11

Patient verified via Press Ganey

Dr Ko was just what I needed without knowing what I needed. He was compassionate, knowledgeable and seemed to really grasp my situation and needs.

Overall Rating: 5.0 2025-10-17

Patient verified via Press Ganey

Dr. Ko was easy to talk to and made me feel at ease even though I was facing a rough road.

Overall Rating: 5.0 2025-01-22

Patient verified via Press Ganey

Dr Ko is a great listener, and was respectful of my unusual situation

Overall Rating: 5.0 2025-08-07

Patient verified via Press Ganey

Very good doctor, highly recommend

Overall Rating: 5.0 2025-01-07

Patient verified via Press Ganey

Outstanding care

General Payments

These charts describe general payments received by Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
EMD Serono, Inc.	$17,435 $17,435
Merrimack Pharmaceuticals, Inc.	$7,264 ONIVYDE $2,957	$4,306
Genentech, Inc.	$6,768 Non-Covered Product $3,918	$2,850
Incyte Corporation	$4,323 $4,323
Halozyme Inc	$3,475 PEGPH20 $3,475
Other	$19,243 FYARRO $2,878	Somatuline Depot $2,450	Lenvima $2,355	Abraxane $1,943	IMFINZI $1,198	Other $8,420

**Types of Payments**
Consulting Fee	$36,846
Travel and Lodging	$7,263
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$4,156
Honoraria	$3,994
Grant	$3,720
Other	$2,529

Research Payments

Dr. Andrew H. Ko, MD, Gastrointestinal Medical Oncology has received 113 research payments totaling $1,943,517.

Biography

Dr. Andrew Ko specializes in general practice, gastroenterology (digestive system), and medical oncology and practices in San Francisco, CA. Dr. Ko's areas of expertise include the following: esophageal cancer, rectal cancer, and anal cancer. On average, patients gave him a rating of 5.0 stars (out of 5). He studied medicine at Johns Hopkins University School of Medicine. For his residency, Dr. Ko trained at Beth Israel Deaconess Medical Center. Dr. Ko's professional affiliations include UCSF Medical Group and Hill Physicians. He welcomes new patients at his office inSan Francisco, CA as reported by Doctor.com.