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Home > CA Providers > Internists & Internal Medicine Doctors

Dr. Eric M W Chen, MD

(5 Ratings)

Specializes in: Internal Medicine (Adult Medicine)

14050 Cherry Avenue Suite C
Fontana, CA 92337

(909) 823-5220

Dr. Eric M W Chen, MD is an internist in Fontana, CA specializing in internal medicine (adult medicine).

Office Locations

14050 Cherry Avenue Suite C
Fontana, CA 92337

(909) 823-5220

(909) 823-7650

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Noteworthy Medicare Patient Procedures Performed by Dr. Eric M W Chen, MD in 2023

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

Top 5%

By Affordability:

immunization

vaccines

In 2023, Dr. Eric M W Chen, MD had a list price for immunization (preventive vaccines), and vaccines 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:

flu shot

flu vaccine

In 2023, Dr. Eric M W Chen, MD had a list price for flu shot, and flu vaccine 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. Eric M W Chen, MD treated as an internist in Fontana, CA during 2012 were blood draw.

Volume of procedures performed by Dr. Eric M W Chen, MD for Medicare patients.

blood draw	95
doctor visit	482

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Eric M W Chen, MD treated as an internist in Fontana, CA during 2013 were blood draw, preventive care and vaccines.

Volume of procedures performed by Dr. Eric M W Chen, MD for Medicare patients.

blood draw	123
doctor visit	534
preventive care	30
vaccines	30

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Eric M W Chen, MD.

**Gender**
Male	37
Female	63

**Ethnicity**
Non-Hispanic White	34
Black	0
Hispanic	41
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	48
From 75 to 84	26
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Eric M W Chen, MD in 2013

Hypertension	75
High Cholesterol	39
Stroke	0
Ischemic Heart Disease	19
Depression	0
Chronic Kidney Disease	14
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	12
Chronic Obstructive Pulmonary Disease	15
Diabetes	45
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Eric M W Chen, MD treated as an internist in Fontana, CA during 2014 were blood draw, preventive care and vaccines.

Volume of procedures performed by Dr. Eric M W Chen, MD for Medicare patients.

blood draw	109
doctor visit	490
preventive care	21
vaccines	21

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Eric M W Chen, MD.

**Gender**
Male	42
Female	65

**Ethnicity**
Non-Hispanic White	39
Black	0
Hispanic	37
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	50
From 75 to 84	31
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Eric M W Chen, MD in 2014

Hypertension	75
High Cholesterol	44
Stroke	0
Ischemic Heart Disease	21
Depression	0
Chronic Kidney Disease	15
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	14
Chronic Obstructive Pulmonary Disease	17
Diabetes	42
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Eric M W Chen, MD treated as an internist in Fontana, CA during 2015 were blood draw, preventive care and vaccines.

Volume of procedures performed by Dr. Eric M W Chen, MD for Medicare patients.

blood draw	91
doctor visit	452
preventive care	20
vaccines	20

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Eric M W Chen, MD.

**Gender**
Male	68
Female	108

**Ethnicity**
Non-Hispanic White	60
Black	0
Hispanic	66
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	84
From 75 to 84	54
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Eric M W Chen, MD in 2015

Hypertension	75
High Cholesterol	45
Stroke	0
Ischemic Heart Disease	25
Depression	0
Chronic Kidney Disease	15
Asthma	13
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	13
Chronic Obstructive Pulmonary Disease	23
Diabetes	41
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Eric M W Chen, MD treated as an internist in Fontana, CA during 2016 were blood draw, preventive care and vaccines.

Volume of procedures performed by Dr. Eric M W Chen, MD for Medicare patients.

blood draw	68
doctor visit	388
preventive care	19
vaccines	19

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Eric M W Chen, MD.

**Gender**
Male	34
Female	45

**Ethnicity**
Non-Hispanic White	28
Black	0
Hispanic	28
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	38
From 75 to 84	27
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Eric M W Chen, MD in 2016

Hypertension	75
High Cholesterol	35
Stroke	0
Ischemic Heart Disease	32
Depression	0
Chronic Kidney Disease	22
Asthma	18
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	20
Chronic Obstructive Pulmonary Disease	0
Diabetes	49
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Eric M W Chen, MD treated as an internist in Fontana, CA during 2017 were blood draw, preventive care and vaccines.

Volume of procedures performed by Dr. Eric M W Chen, MD for Medicare patients.

blood draw	76
doctor visit	362
preventive care	18
vaccines	18

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Eric M W Chen, MD.

**Gender**
Male	39
Female	45

**Ethnicity**
Non-Hispanic White	32
Black	0
Hispanic	26
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	41
From 75 to 84	27
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Eric M W Chen, MD in 2017

Hypertension	74
High Cholesterol	19
Stroke	0
Ischemic Heart Disease	27
Depression	0
Chronic Kidney Disease	27
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	20
Chronic Obstructive Pulmonary Disease	19
Diabetes	46
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Eric M W Chen, MD treated as an internist in Fontana, CA during 2018 were blood draw, preventive care and vaccines.

Volume of procedures performed by Dr. Eric M W Chen, MD for Medicare patients.

blood draw	85
doctor visit	379
preventive care	16
vaccines	16

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Eric M W Chen, MD.

**Gender**
Male	37
Female	48

**Ethnicity**
Non-Hispanic White	24
Black	0
Hispanic	32
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	38
From 75 to 84	27
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Eric M W Chen, MD in 2018

Hypertension	75
High Cholesterol	45
Stroke	0
Ischemic Heart Disease	19
Depression	0
Chronic Kidney Disease	27
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	18
Chronic Obstructive Pulmonary Disease	0
Diabetes	44
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Eric M W Chen, MD treated as an internist in Fontana, CA during 2019 were blood draw, preventive care and vaccines.

Volume of procedures performed by Dr. Eric M W Chen, MD for Medicare patients.

blood draw	64
doctor visit	344
preventive care	17
vaccines	17

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Eric M W Chen, MD.

**Gender**
Male	35
Female	51

**Ethnicity**
Non-Hispanic White	0
Black	0
Hispanic	27
Asian	28
Other	0
Native American	0

**Age**
From 65 to 74	43
From 75 to 84	30
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Eric M W Chen, MD in 2019

Hypertension	75
High Cholesterol	36
Stroke	0
Ischemic Heart Disease	20
Depression	0
Chronic Kidney Disease	20
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	16
Chronic Obstructive Pulmonary Disease	0
Diabetes	42
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Eric M W Chen, MD treated as an internist in Fontana, CA during 2020 were blood draw.

Volume of procedures performed by Dr. Eric M W Chen, MD for Medicare patients.

blood draw	17
doctor visit	127

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Eric M W Chen, MD.

**Gender**
Male	24
Female	29

**Ethnicity**
Non-Hispanic White	0
Black	0
Hispanic	20
Asian	16
Other	0
Native American	0

**Age**
From 65 to 74	24
From 75 to 84	17
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Eric M W Chen, MD in 2020

Hypertension	74
High Cholesterol	30
Stroke	0
Ischemic Heart Disease	21
Depression	0
Chronic Kidney Disease	28
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	47
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Eric M W Chen, MD treated as an internist in Fontana, CA during 2021 were blood draw, preventive care and vaccines.

Volume of procedures performed by Dr. Eric M W Chen, MD for Medicare patients.

blood draw	35
doctor visit	179
preventive care	11
vaccines	11

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Eric M W Chen, MD.

**Gender**
Male	32
Female	37

**Ethnicity**
Non-Hispanic White	0
Black	0
Hispanic	20
Asian	29
Other	0
Native American	0

**Age**
From 65 to 74	34
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Eric M W Chen, MD in 2021

Hypertension	71
High Cholesterol	36
Stroke	0
Ischemic Heart Disease	22
Depression	0
Chronic Kidney Disease	20
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	16
Chronic Obstructive Pulmonary Disease	0
Diabetes	38
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Eric M W Chen, MD treated as an internist in Fontana, CA during 2022 were blood draw.

Volume of procedures performed by Dr. Eric M W Chen, MD for Medicare patients.

blood draw	43
doctor visit	188

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Eric M W Chen, MD.

**Gender**
Male	36
Female	34

**Ethnicity**
Non-Hispanic White	0
Black	0
Hispanic	21
Asian	29
Other	0
Native American	0

**Age**
From 65 to 74	41
From 75 to 84	16
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Eric M W Chen, MD in 2022

Hypertension	75
High Cholesterol	54
Stroke	0
Ischemic Heart Disease	16
Depression	0
Chronic Kidney Disease	19
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	17
Chronic Obstructive Pulmonary Disease	0
Diabetes	36
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Eric M W Chen, MD for Medicare patients.

The highest averages for the top procedures that Dr. Eric M W Chen, MD treated as an internist in Fontana, CA were blood draw, preventive care and vaccines.

blood draw	73
doctor visit	356
preventive care	19
vaccines	19

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Eric M W Chen, MD.

**Gender**
Male	34
Female	47

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	9
Non-Hispanic White	19
Native American / Alaskan Native	0
Hispanic	28
Other	0

**Age**
75 to 84	23
85 and over	0
Less than 65	0
65 to 74	40

Average of Total of Conditions of Medicare patients treated by Dr. Eric M W Chen, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Eric M W Chen, MD treated were hypertension, diabetes, high cholesterol and ischemic heart disease.

Hypertension	67
High Cholesterol	34
Stroke	0
Ischemic Heart Disease	20
Depression	0
Chronic Kidney Disease	18
Asthma	2
Osteoporosis	0
Heart Failure	13
Chronic Obstructive Pulmonary Disease	6
Diabetes	39
Atrial Fibrillation	0
Dementia	0
Cancer	0

Education & Training

He has a state license in California.

Licensed In: California

Ratings & Reviews

Dr. Eric M W Chen, MD has an average of 1.6 out of 5 stars based on 5 ratings. We collect ratings and reviews of Dr. Eric M W Chen, MD from all over the web to help you find the right in Fontana, CA.

1.6

Overall Rating

(5 Ratings)

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General Payments

These charts describe general payments received by Dr. Eric M W Chen, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
AstraZeneca Pharmaceuticals LP	$191 BYDUREON $132	FARXIGA $22	MOVANTIK $19	$18
Medtronic Vascular, Inc.	$176 IN.PACT Admiral $176
Meda Pharmaceuticals, Inc.	$152 Dymista $152
Janssen Pharmaceuticals, Inc	$150 XARELTO $82	INVOKANA $68
Novo Nordisk Inc	$113 Tresiba $63	Victoza $50
Other	$310 Horizant $123	ENTRESTO $62	BYDUREON $55	FreeStyle Libre $24	Chameleon $23	Other $23