Procedure Volume Patient Data Patient Conditions Reviews General Payments Back to Top

Home > CA Providers

Dr. Chienwei Timothy Chen, MD

Accepting New Patients

(550 Ratings)

Specializes in: General Internal Medicine

Boston University School of Medicine (1998)

4050 Barranca Parkway Suite 200
Irvine, CA 92604

1-877-696-3622

Dr. Chienwei Timothy Chen, MD is a general internist in Irvine, CA specializing in general internal medicine. He graduated from Boston University School of Medicine in 1998 and has 28 years of experience. Dr. Chienwei Timothy Chen, MD is affiliated with Saddleback Medical Center, MemorialCare and MemorialCare Medical Group.

Office Locations

4050 Barranca Parkway Suite 200
Irvine, CA 92604

open_in_new

Noteworthy Medicare Patient Procedures Performed by Dr. Chienwei Timothy Chen, MD in 2023

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

Top 5%

By Affordability:

blood draw

blood draw for lab tests

phlebotomy for lab tests

venipuncture

In 2023, Dr. Chienwei Timothy Chen, MD had a list price for blood draw, blood draw for lab tests, phlebotomy for lab tests, and venipuncture (phlebotomy) 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 25%

By Volume:

blood draw

phlebotomy for lab tests

By Affordability:

In 2012, among providers in related specialties within California, Dr. Chienwei Timothy Chen, MD performed more blood draw, and phlebotomy for lab tests procedures for Medicare patients than 75% of them and he also had a list price for flu shot, flu vaccine, immunization (preventive vaccines), and vaccines 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. Chienwei Timothy Chen, MD treated as a general internist in Irvine, CA during 2012 were blood draw, preventive care and vaccines.

Volume of procedures performed by Dr. Chienwei Timothy Chen, MD for Medicare patients.

blood draw	119
doctor visit	214
preventive care	26
vaccines	26

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Chienwei Timothy Chen, MD treated as a general internist in Irvine, CA during 2013 were blood draw, preventive care and vaccines.

Volume of procedures performed by Dr. Chienwei Timothy Chen, MD for Medicare patients.

blood draw	110
doctor visit	206
preventive care	29
vaccines	29

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Chienwei Timothy Chen, MD.

**Gender**
Male	44
Female	52

**Ethnicity**
Non-Hispanic White	55
Black	0
Hispanic	0
Asian	28
Other	0
Native American	0

**Age**
From 65 to 74	56
From 75 to 84	23
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Chienwei Timothy Chen, MD in 2013

Hypertension	53
High Cholesterol	53
Stroke	0
Ischemic Heart Disease	26
Depression	21
Chronic Kidney Disease	30
Asthma	0
Osteoperosis	0
Atrial Fibrilation	14
Heart Failure	16
Chronic Obstructive Pulmonary Disease	0
Diabetes	30
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Chienwei Timothy Chen, MD treated as a general internist in Irvine, CA during 2014 were preventive care and vaccines.

Volume of procedures performed by Dr. Chienwei Timothy Chen, MD for Medicare patients.

doctor visit	194
preventive care	28
vaccines	28

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Chienwei Timothy Chen, MD.

**Gender**
Male	33
Female	46

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

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

Conditions of Medicare patients treated by Dr. Chienwei Timothy Chen, MD in 2014

Hypertension	57
High Cholesterol	62
Stroke	0
Ischemic Heart Disease	24
Depression	19
Chronic Kidney Disease	32
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	35
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Chienwei Timothy Chen, MD treated as a general internist in Irvine, CA during 2015 were preventive care, vaccines, X-rays and musculoskeletal imaging.

Volume of procedures performed by Dr. Chienwei Timothy Chen, MD for Medicare patients.

doctor visit	209
musculoskeletal imaging	12
preventive care	24
vaccines	24
X-rays	12

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Chienwei Timothy Chen, MD.

**Gender**
Male	88
Female	112

**Ethnicity**
Non-Hispanic White	110
Black	0
Hispanic	0
Asian	58
Other	0
Native American	0

**Age**
From 65 to 74	122
From 75 to 84	48
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Chienwei Timothy Chen, MD in 2015

Hypertension	58
High Cholesterol	57
Stroke	0
Ischemic Heart Disease	22
Depression	24
Chronic Kidney Disease	25
Asthma	0
Osteoperosis	12
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	32
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Chienwei Timothy Chen, MD treated as a general internist in Irvine, CA during 2016 were blood draw, preventive care and vaccines.

Volume of procedures performed by Dr. Chienwei Timothy Chen, MD for Medicare patients.

blood draw	138
doctor visit	213
preventive care	30
vaccines	30

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Chienwei Timothy Chen, MD.

**Gender**
Male	53
Female	42

**Ethnicity**
Non-Hispanic White	44
Black	0
Hispanic	0
Asian	35
Other	0
Native American	0

**Age**
From 65 to 74	52
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Chienwei Timothy Chen, MD in 2016

Hypertension	68
High Cholesterol	58
Stroke	0
Ischemic Heart Disease	22
Depression	15
Chronic Kidney Disease	28
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	34
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Chienwei Timothy Chen, MD treated as a general internist in Irvine, CA during 2017 were blood draw, preventive care and vaccines.

Volume of procedures performed by Dr. Chienwei Timothy Chen, MD for Medicare patients.

blood draw	139
doctor visit	229
preventive care	28
vaccines	28

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Chienwei Timothy Chen, MD.

**Gender**
Male	52
Female	56

**Ethnicity**
Non-Hispanic White	59
Black	0
Hispanic	0
Asian	33
Other	0
Native American	0

**Age**
From 65 to 74	54
From 75 to 84	31
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Chienwei Timothy Chen, MD in 2017

Hypertension	51
High Cholesterol	54
Stroke	0
Ischemic Heart Disease	17
Depression	16
Chronic Kidney Disease	26
Asthma	0
Osteoperosis	13
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	28
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Chienwei Timothy Chen, MD treated as a general internist in Irvine, CA during 2018 were blood draw, preventive care and vaccines.

Volume of procedures performed by Dr. Chienwei Timothy Chen, MD for Medicare patients.

blood draw	133
doctor visit	243
preventive care	41
vaccines	41

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Chienwei Timothy Chen, MD.

**Gender**
Male	50
Female	60

**Ethnicity**
Non-Hispanic White	43
Black	0
Hispanic	0
Asian	44
Other	0
Native American	0

**Age**
From 65 to 74	56
From 75 to 84	35
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Chienwei Timothy Chen, MD in 2018

Hypertension	50
High Cholesterol	69
Stroke	0
Ischemic Heart Disease	18
Depression	19
Chronic Kidney Disease	27
Asthma	0
Osteoperosis	12
Atrial Fibrilation	0
Heart Failure	11
Chronic Obstructive Pulmonary Disease	0
Diabetes	36
Dementia	10
Cancer	0

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Chienwei Timothy Chen, MD treated as a general internist in Irvine, CA during 2019 were blood draw, preventive care and vaccines.

Volume of procedures performed by Dr. Chienwei Timothy Chen, MD for Medicare patients.

blood draw	159
doctor visit	238
preventive care	19
vaccines	19

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Chienwei Timothy Chen, MD.

**Gender**
Male	66
Female	64

**Ethnicity**
Non-Hispanic White	60
Black	0
Hispanic	0
Asian	49
Other	0
Native American	0

**Age**
From 65 to 74	62
From 75 to 84	49
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Chienwei Timothy Chen, MD in 2019

Hypertension	54
High Cholesterol	62
Stroke	0
Ischemic Heart Disease	21
Depression	13
Chronic Kidney Disease	28
Asthma	0
Osteoperosis	15
Atrial Fibrilation	9
Heart Failure	13
Chronic Obstructive Pulmonary Disease	11
Diabetes	37
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Chienwei Timothy Chen, MD treated as a general internist in Irvine, CA during 2020 were blood draw, preventive care and vaccines.

Volume of procedures performed by Dr. Chienwei Timothy Chen, MD for Medicare patients.

blood draw	208
doctor visit	318
preventive care	62
vaccines	62

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Chienwei Timothy Chen, MD.

**Gender**
Male	108
Female	88

**Ethnicity**
Non-Hispanic White	115
Black	0
Hispanic	0
Asian	62
Other	0
Native American	0

**Age**
From 65 to 74	110
From 75 to 84	62
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Chienwei Timothy Chen, MD in 2020

Hypertension	57
High Cholesterol	66
Stroke	0
Ischemic Heart Disease	29
Depression	16
Chronic Kidney Disease	30
Asthma	6
Osteoperosis	9
Atrial Fibrilation	13
Heart Failure	18
Chronic Obstructive Pulmonary Disease	7
Diabetes	29
Dementia	6
Cancer	9

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Chienwei Timothy Chen, MD treated as a general internist in Irvine, CA during 2021 were blood draw, preventive care and vaccines.

Volume of procedures performed by Dr. Chienwei Timothy Chen, MD for Medicare patients.

blood draw	281
doctor visit	391
preventive care	43
vaccines	43

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Chienwei Timothy Chen, MD.

**Gender**
Male	94
Female	75

**Ethnicity**
Non-Hispanic White	95
Black	0
Hispanic	0
Asian	55
Other	0
Native American	0

**Age**
From 65 to 74	86
From 75 to 84	63
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Chienwei Timothy Chen, MD in 2021

Hypertension	54
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	25
Depression	10
Chronic Kidney Disease	27
Asthma	0
Osteoperosis	14
Atrial Fibrilation	10
Heart Failure	12
Chronic Obstructive Pulmonary Disease	7
Diabetes	27
Dementia	8
Cancer	12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Chienwei Timothy Chen, MD treated as a general internist in Irvine, CA during 2022 were blood draw, preventive care and vaccines.

Volume of procedures performed by Dr. Chienwei Timothy Chen, MD for Medicare patients.

blood draw	250
doctor visit	411
preventive care	32
vaccines	32

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Chienwei Timothy Chen, MD.

**Gender**
Male	94
Female	71

**Ethnicity**
Non-Hispanic White	92
Black	0
Hispanic	0
Asian	60
Other	0
Native American	0

**Age**
From 65 to 74	83
From 75 to 84	63
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Chienwei Timothy Chen, MD in 2022

Hypertension	59
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	18
Depression	8
Chronic Kidney Disease	21
Asthma	7
Osteoperosis	21
Atrial Fibrilation	16
Heart Failure	0
Chronic Obstructive Pulmonary Disease	8
Diabetes	24
Dementia	0
Cancer	13

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Chienwei Timothy Chen, MD for Medicare patients.

The highest averages for the top procedures that Dr. Chienwei Timothy Chen, MD treated as a general internist in Irvine, CA were blood draw, preventive care, vaccines and X-rays.

blood draw	170
doctor visit	260
musculoskeletal imaging	12
preventive care	32
vaccines	32
X-rays	12

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Chienwei Timothy Chen, MD.

**Gender**
Female	60
Male	62

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	38
Non-Hispanic White	65
Hispanic	0
Native American / Alaskan Native	0
Other	0

**Age**
85 and over	0
75 to 84	34
Less than 65	0
65 to 74	66

Average of Total of Conditions of Medicare patients treated by Dr. Chienwei Timothy Chen, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Chienwei Timothy Chen, MD treated were high cholesterol, hypertension, diabetes and chronic kidney disease.

Hypertension	51
High Cholesterol	57
Stroke	0
Ischemic Heart Disease	20
Depression	14
Chronic Kidney Disease	24
Asthma	1
Osteoporosis	8
Heart Failure	6
Chronic Obstructive Pulmonary Disease	3
Diabetes	28
Atrial Fibrillation	5
Dementia	2
Cancer	3

Education & Training

Dr. Chienwei Timothy Chen, MD graduated from Boston University School of Medicine in 1998. He completed residency at University of California, Irvine Affiliated Hospitals. He is certified by the American Board of Internal Medicine and has a state license in California.

Medical School: Boston University School of Medicine (1998)

Residency: University of California, Irvine Affiliated Hospitals (2003)

Board Certification: American Board of Internal Medicine

Licensed In: California

Affiliations & Hospitals

Dr. Chienwei Timothy Chen, MD is associated with these hospitals and organizations:

Saddleback Medical Center

MemorialCare

MemorialCare Medical Group

Ratings & Reviews

Dr. Chienwei Timothy Chen, MD has an exceptional overall rating with an average of 4.91 out of 5 stars based on 550 ratings. We collect ratings and reviews of Dr. Chienwei Timothy Chen, MD from all over the web to help you find the right in Irvine, CA.

4.91

Overall Rating

(550 Ratings)

Leave a Review

General Payments

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

**Payments by Company**
AstraZeneca Pharmaceuticals LP	$1,595 FARXIGA $1,141	BREZTRI $125	SYMBICORT $99	BYDUREON WEEKLY $62	BYDUREON PEN $62	Other $107
Janssen Pharmaceuticals, Inc	$1,043 INVOKANA $550	XARELTO $493
GlaxoSmithKline, LLC.	$918 BREO $197	TRELEGY ELLIPTA $162	ANORO $124	AREXVY $104	TANZEUM $62	Other $269
Lilly USA, LLC	$848 BASAGLAR $209	JARDIANCE $165	TRULICITY $145	TRADJENTA $80	EMGALITY $72	Other $176
Amgen Inc.	$655 Otezla $270	Repatha $156	Enbrel $121	TEZSPIRE $67	Prolia $41
Other	$3,199 Tresiba $270	TOUJEO $228	GARDASIL9 $193	QULIPTA $150	STEGLUJAN $136	Other $2,222

**Types of Payments**
Food and Beverage	$8,191
Education	$67

Biography

Dr. Timothy Chen practices general internal medicine in Irvine, CA. He speaks Mandarin. Dr. Chen's hospital/clinic affiliations include Saddleback Medical Center and MemorialCare Medical Group. He attended Boston University School of Medicine and subsequently trained at a hospital affiliated with the University of California, Irvine for residency. Dr. Chen has a 5.0 out of 5 star average patient rating. He welcomes new patients at his office inIrvine, CA as reported by Doctor.com.

Select Year:

Dr. Chienwei Timothy Chen, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Chienwei Timothy Chen, MD in 2023

By Affordability:

By Volume:

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. Chienwei Timothy Chen, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Chienwei Timothy Chen, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Chienwei Timothy Chen, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Chienwei Timothy Chen, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Chienwei Timothy Chen, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Chienwei Timothy Chen, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Chienwei Timothy Chen, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Chienwei Timothy Chen, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Chienwei Timothy Chen, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Chienwei Timothy Chen, 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. Chienwei Timothy Chen, MD From 2012 - 2022

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Biography

Other Providers in Irvine, CA