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Dr. Charles Hsiao-Kung Feng, MD

Accepting New Patients

(45 Ratings)

Specializes in: Pediatric Allergy & Immunology and Adult Allergy & Immunology

University of California, Los Angeles (UCLA), David Geffen School of Medicine

701 E. El Camino Real South Wing, 2nd Floor
Mountain View, CA 94040

(650) 934-7888

Dr. Charles Hsiao-Kung Feng, MD is a pediatric allergist and immunologist in Los Gatos, CA specializing in pediatric allergy & immunology and adult allergy & immunology. He graduated from University of California, Los Angeles (UCLA), David Geffen School of Medicine. Dr. Charles Hsiao-Kung Feng, MD is affiliated with El Camino Health, Palo Alto Foundation Medical Group, Sutter Health and SUTTER BAY MEDICAL FOUNDATION.

Office Locations

Address:

15400 Los Gatos Boulevard 1st Floor
Los Gatos, CA 95032

Address:

701 E. El Camino Real South Wing, 2nd Floor
Mountain View, CA 94040

In The News

“Many doctors are unaware of the disorder, said Charles Feng, the California allergist who made the diagnosis: "The important thing is to recognize the correlation between all these symptoms."”—"Medical Mystery: They told her it was flu, but it took years to find the truth", Philadelphia Inquirer, July 2018

“Many doctors are unaware of the disorder, said Charles Feng, the California allergist who made the diagnosis.”—"Her doctor said she had the flu. It took years to find the real, and strange, illness.", Washington Post, June 2018

allergy testing	1131
doctor visit	90
minimally invasive procedures	1131
skin testing	1131

**Gender**
Male	28
Female	43

**Ethnicity**
Non-Hispanic White	45
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	41
From 75 to 84	18
85 and over	0
Less than 65	0

Hypertension	46
High Cholesterol	44
Stroke	0
Ischemic Heart Disease	17
Depression	24
Chronic Kidney Disease	20
Asthma	24
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	24
Dementia	0
Cancer	0

allergy testing	1141
doctor visit	78
minimally invasive procedures	1141
skin testing	1141

**Gender**
Male	27
Female	48

**Ethnicity**
Non-Hispanic White	45
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	43
From 75 to 84	20
85 and over	0
Less than 65	0

Hypertension	47
High Cholesterol	44
Stroke	0
Ischemic Heart Disease	0
Depression	21
Chronic Kidney Disease	17
Asthma	24
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	27
Dementia	0
Cancer	0

allergy testing	1691
doctor visit	129
immunotherapy	252
injections	252
minimally invasive procedures	1691
skin testing	1691

**Gender**
Male	62
Female	104

**Ethnicity**
Non-Hispanic White	108
Black	0
Hispanic	12
Asian	35
Other	0
Native American	0

**Age**
From 65 to 74	84
From 75 to 84	57
85 and over	0
Less than 65	0

Hypertension	49
High Cholesterol	44
Stroke	0
Ischemic Heart Disease	13
Depression	20
Chronic Kidney Disease	19
Asthma	33
Osteoperosis	8
Atrial Fibrilation	7
Heart Failure	9
Chronic Obstructive Pulmonary Disease	11
Diabetes	15
Dementia	0
Cancer	7

allergy testing	1930
doctor visit	144
immunotherapy	213
injections	213
minimally invasive procedures	1930
skin testing	1930

**Gender**
Male	54
Female	102

**Ethnicity**
Non-Hispanic White	111
Black	0
Hispanic	0
Asian	24
Other	0
Native American	0

**Age**
From 65 to 74	83
From 75 to 84	55
85 and over	0
Less than 65	0

Hypertension	51
High Cholesterol	51
Stroke	0
Ischemic Heart Disease	19
Depression	17
Chronic Kidney Disease	16
Asthma	31
Osteoperosis	11
Atrial Fibrilation	9
Heart Failure	0
Chronic Obstructive Pulmonary Disease	11
Diabetes	16
Dementia	0
Cancer	9

doctor visit	49
immunotherapy	199
injections	199

**Gender**
Male	41
Female	86

**Ethnicity**
Non-Hispanic White	87
Black	0
Hispanic	0
Asian	23
Other	0
Native American	0

**Age**
From 65 to 74	73
From 75 to 84	40
85 and over	0
Less than 65	0

Hypertension	38
High Cholesterol	45
Stroke	0
Ischemic Heart Disease	23
Depression	15
Chronic Kidney Disease	14
Asthma	28
Osteoperosis	14
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	16
Dementia	0
Cancer	10

allergy testing	1540
doctor visit	163
immunotherapy	576
injections	576
minimally invasive procedures	1540
skin testing	1540

Average Medicare Procedure Volume From 2016 - 2021

Volume of procedures performed by Dr. Charles Hsiao-Kung Feng, MD for Medicare patients.

The highest averages for the top procedures that Dr. Charles Hsiao-Kung Feng, MD treated as a pediatric allergist and immunologist in Los Gatos, CA were skin testing, allergy testing, minimally invasive procedures and immunotherapy.

allergy testing	1486
doctor visit	110
immunotherapy	310
injections	310
minimally invasive procedures	1486
skin testing	1486

Average Medicare Patient Data From 2016 - 2021

Information about Medicare patients treated by Dr. Charles Hsiao-Kung Feng, MD.

**Gender**
Female	38
Male	21

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	8
Non-Hispanic White	39
Native American / Alaskan Native	0
Hispanic	1
Other	0

**Age**
85 and over	0
75 to 84	19
Less than 65	0
65 to 74	32

Average of Total of Conditions of Medicare patients treated by Dr. Charles Hsiao-Kung Feng, MD From 2016 - 2021

The highest averages of the most common conditions of Medicare patients that Dr. Charles Hsiao-Kung Feng, MD treated were hypertension, high cholesterol, asthma and depression.

Hypertension	23
High Cholesterol	22
Stroke	0
Ischemic Heart Disease	7
Depression	9
Chronic Kidney Disease	8
Asthma	14
Osteoporosis	3
Heart Failure	0
Chronic Obstructive Pulmonary Disease	2
Diabetes	9
Atrial Fibrillation	1
Cancer	2
Dementia	0

Education & Training

Dr. Charles Hsiao-Kung Feng, MD graduated from University of California, Los Angeles (UCLA), David Geffen School of Medicine. He completed residency at Scripps Clinic. He is certified by the American Board of Allergy and Immunology, Specialty: Allergy and Immunology American Board of Internal Medicine, Specialty: Internal Medicine and has a state license in California.

Medical School: University of California, Los Angeles (UCLA), David Geffen School of Medicine

Residency: Scripps Clinic

Board Certification: American Board of Allergy and Immunology, Specialty: Allergy and Immunology American Board of Internal Medicine, Specialty: Internal Medicine

Licensed In: California

Affiliations & Hospitals

Dr. Charles Hsiao-Kung Feng, MD is associated with these hospitals and organizations:

El Camino Health

Palo Alto Foundation Medical Group

Sutter Health

SUTTER BAY MEDICAL FOUNDATION

Ratings & Reviews

Dr. Charles Hsiao-Kung Feng, MD has an exceptional overall rating with an average of 4.6 out of 5 stars based on 45 ratings. We collect ratings and reviews of Dr. Charles Hsiao-Kung Feng, MD from all over the web to help you find the right in Los Gatos, CA.

4.6

Overall Rating

(45 Ratings)

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General Payments

These charts describe general payments received by Dr. Charles Hsiao-Kung Feng, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Merck Sharp & Dohme Corporation	$800 NON-PRODUCT $800
Teva Pharmaceuticals USA, Inc.	$150 QVAR $43	$107
Shire North American Group Inc	$38 $38
Hologic, LLC	$19 FLUENT $19
GlaxoSmithKline, LLC.	$12 NUCALA $12
Other	$12 Xhance $12

**Types of Payments**
Travel and Lodging	$800
Education	$144
Food and Beverage	$87

Research Payments

Dr. Charles Hsiao-Kung Feng, MD has received 1 research payments totaling $3,500.

Biography

Dr. Charles Feng works as a pediatric allergy & immunology and adult allergy & immunology. He obtained his medical school training at the University of California, Los Angeles (UCLA), David Geffen School of Medicine and performed his residency at Scripps Clinic. Patient ratings for Dr. Feng average 4.5 stars (out of 5). In addition to English, Dr. Feng (or staff) speaks Mandarin and Spanish. He is professionally affiliated with El Camino Health and Palo Alto Foundation Medical Group. El Camino Health reports that he is accepting new patients at his office in Mountain View, CA.