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Home > CA Providers > Family Physicians & Family Medicine Specialists

Dr. Andy Tie Wen Chang, MD

(Dr. Andy Tiewen Chang, MD)

(328 Ratings)

Specializes in: Family Medicine

University of Southern California (USC), Keck School of Medicine (1999)

Professional interests include: consultation, cholesterol problems (lipid disorders), obesity, and more.

3200 Kearney Street Building 2, Floor 1
Fremont, CA 94538

(510) 490-1222

Dr. Andy Tie Wen Chang, MD is a family medicine practitioner in Fremont, CA specializing in family medicine. He graduated from University of Southern California (USC), Keck School of Medicine in 1999 and has 27 years of experience. Dr. Andy Tie Wen Chang, MD is affiliated with Sutter Health and Washington Hospital Healthcare System.

Office Locations

Sutter Health

3200 Kearney Street Building 2, Floor 1
Fremont, CA 94538

(510) 490-1222

(510) 498-2699

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Some issues Dr. Andy Tie Wen Chang, MD can help you with:

Asthma

Asthma is a chronic lung disease where the tissue and airways of the lungs become extremely sensitive to certain substances. When these substances are breathed in, the lungs become inflamed. The muscles around the airways tighten and squeeze the lungs, and passages within the lungs swell and tighten. The airways themselves produce mucus, which further clogs the tightened, swollen airways. A person having an asthma attack finds it very difficult to breathe, and a severe attack can even be fatal.

Asthma affects people of all ages, but people with asthma are most often diagnosed as children. Symptoms can include wheezing, a tight feeling in the chest, shortness of breath, and coughing. Some people have mild symptoms all the time, and some people have no symptoms at all, but everyone with asthma is susceptible to occasional severe attacks or flare-ups of symptoms when they are exposed to triggers. Triggers vary widely but can include:

Allergens (dust mites, pet fur, mold, pollen, grass)
Irritants (smoke, pollution, dust, chemicals)
Viral infections
Physical activity, especially outdoors
Certain medications or chemicals in foods (aspirin, sulfites)

Treatment for most asthma patients involves three steps. Patients learn what their asthma triggers are and avoid them. They take a daily control medication, usually an inhaled corticosteroid, to reduce inflammation in the lungs. Also, they have rescue medication with them at all times to take in case of a severe attack. These quick-acting inhaled medications relax the muscles around the airways and allow the lungs to open up for air.

There is no cure for asthma, but with treatment it should not interfere with daily life and activities.

Heart Problems

The heart is one of the most important organs in the body. This smooth muscle expands and contracts rhythmically an entire lifetime, pumping blood to the lungs and then to every other cell in the body. When heart problems occur, it becomes difficult for the body to get the nutrients and oxygen it needs via the blood. So while there are a variety of illnesses and disorders that affect the heart, most of them cause weakness, exhaustion and shortness of breath. The most common heart conditions include heart disease, angina, arrhythmia, and valve disorders.

Heart disease is the leading cause of death in the United States for both men and women. This includes coronary artery disease, heart attacks, congestive heart failure, and congenital heart disease. Some conditions, such as genetics, cannot be controlled. But there are many other things one can do to lower their risk for heart disease. Controlling high blood pressure and cholesterol levels, reducing or stopping smoking, exercising more and losing weight if needed, and eating a diet low in sodium can all protect the heart.

Angina is a squeezing type of chest pain that happens when the muscles around the heart don't get enough oxygen. It can be regular or infrequent. Usually, angina is caused by coronary heart disease. However, not all chest pain is angina. Chest pain can also be caused by a lung infection or panic attack, for example, so it is important to have any sudden pain checked.

Arrhythmia is the word for when the heart beats too fast, too slow, or irregularly with skipped beats. It can feel frightening, and depending on the type it can be dangerous, but in most cases arrhythmia is not serious and can be treated. It is very common, especially in older adults.

Heart valve problems can happen in any one of the the heart's four valves that keep blood flowing where it needs to go. Babies can be born with problems in their heart valves, or valves can be damaged by infections. The valves can stiffen and become less mobile, or they can stop closing properly and 'leak' when the heart beats. Valve problems can usually be repaired surgically.

Skin Issues

The skin is the largest organ in the body, protecting and covering the more sensitive inner organs. Considering its size and that it is constantly exposed to the elements, the skin is usually relatively problem-free. However that doesn't mean that issues don't come up from time to time that might need the help of a professional. The most common skin issues that people seek medical help with are cosmetic issues, acne, eczema, dermatitis, psoriasis, and skin growths.

Professional cosmetic skin treatments exist to treat wrinkles, scars, dark spots, remove excess hair, tone and tighten skin, and otherwise improve the appearance of the skin. They may use lasers, light therapy, chemical peels, microdermabrasion, or many other forms of skin treatment.

Acne occurs when hair follicles become clogged with oil and dead skin cells, most commonly on the face or back. The clogged follicles can then become infected and inflamed. Treatments include antibiotics, anti-inflammatories, and retinoid creams.

Eczema is dry, sensitive skin that causes an itchy red rash, often in response to specific triggers. It is common in childhood but can sometimes last into adulthood. The main treatment involves keeping skin well moisturized.

Dermatitis is the medical name for any kind of skin inflammation or rash. Rashes can happen because of an allergy or contact with an irritating substance. They may be red, itchy, or even painful. They are often treated with antihistamines or moisturizing creams containing cortisone.

Psoriasis is patches of thick, red skin that is covered in silvery scales. It is often itchy and sore. Psoriasis is thought to be caused by an immune disorder, and it runs in families. Psoriasis is not contagious. There is no cure, but there are medicated creams available to treat the symptoms.

Skin growths, including warts and moles, are usually not serious. However, some skin growths should be examined by a doctor to make sure they don't cause problems in the future. Warts are harmless, rough, bumpy growths caused by a viral infection. They occur most often on the hands and feet. Because they are caused by a virus, they are contagious. Moles are brown or black spots that are sometimes raised slightly from the surface of the skin. They happen when clumps of pigment cells form in a cluster instead of spread out. Moles are harmless except that they are more vulnerable to cancer than other parts of the skin. Skin cancer is the most common form of cancer in the United States, and its risk increases with sun exposure and fair skin tone.

Skin issues can be embarrassing or irritating, but most are minor and can be treated without serious problems. Some, however, can be a sign of a more significant issue, so it is important to see a doctor for anything out of the ordinary.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Andy Tie Wen Chang, MD treated as a family medicine practitioner in Fremont, CA during 2012 were preventive care and vaccines.

Volume of procedures performed by Dr. Andy Tie Wen Chang, MD for Medicare patients.

doctor visit	276
preventive care	17
vaccines	17

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

Volume of procedures performed by Dr. Andy Tie Wen Chang, MD for Medicare patients.

doctor visit	291

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Andy Tie Wen Chang, MD.

**Gender**
Male	80
Female	61

**Ethnicity**
Non-Hispanic White	36
Black	0
Hispanic	0
Asian	85
Other	0
Native American	0

**Age**
From 65 to 74	75
From 75 to 84	37
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Andy Tie Wen Chang, MD in 2013

Hypertension	57
High Cholesterol	51
Stroke	0
Ischemic Heart Disease	19
Depression	13
Chronic Kidney Disease	16
Asthma	0
Osteoperosis	9
Atrial Fibrilation	0
Heart Failure	8
Chronic Obstructive Pulmonary Disease	0
Diabetes	19
Dementia	10
Cancer	9

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Andy Tie Wen Chang, MD treated as a family medicine practitioner in Fremont, CA during 2014 were preventive care and vaccines.

Volume of procedures performed by Dr. Andy Tie Wen Chang, MD for Medicare patients.

doctor visit	284
preventive care	20
vaccines	20

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Andy Tie Wen Chang, MD.

**Gender**
Male	76
Female	78

**Ethnicity**
Non-Hispanic White	40
Black	0
Hispanic	0
Asian	96
Other	0
Native American	0

**Age**
From 65 to 74	82
From 75 to 84	37
85 and over	23
Less than 65	12

Conditions of Medicare patients treated by Dr. Andy Tie Wen Chang, MD in 2014

Hypertension	50
High Cholesterol	44
Stroke	0
Ischemic Heart Disease	23
Depression	11
Chronic Kidney Disease	14
Asthma	0
Osteoperosis	8
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	19
Dementia	9
Cancer	8

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Andy Tie Wen Chang, MD treated as a family medicine practitioner in Fremont, CA during 2015 were preventive care and vaccines.

Volume of procedures performed by Dr. Andy Tie Wen Chang, MD for Medicare patients.

doctor visit	284
preventive care	84
vaccines	84

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Andy Tie Wen Chang, MD.

**Gender**
Male	154
Female	142

**Ethnicity**
Non-Hispanic White	64
Black	0
Hispanic	0
Asian	206
Other	0
Native American	0

**Age**
From 65 to 74	154
From 75 to 84	82
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Andy Tie Wen Chang, MD in 2015

Hypertension	51
High Cholesterol	51
Stroke	0
Ischemic Heart Disease	23
Depression	11
Chronic Kidney Disease	18
Asthma	0
Osteoperosis	10
Atrial Fibrilation	0
Heart Failure	9
Chronic Obstructive Pulmonary Disease	0
Diabetes	26
Dementia	9
Cancer	0

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Andy Tie Wen Chang, MD treated as a family medicine practitioner in Fremont, CA during 2016 were preventive care and vaccines.

Volume of procedures performed by Dr. Andy Tie Wen Chang, MD for Medicare patients.

doctor visit	301
preventive care	47
vaccines	47

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Andy Tie Wen Chang, MD.

**Gender**
Male	87
Female	80

**Ethnicity**
Non-Hispanic White	36
Black	0
Hispanic	0
Asian	111
Other	0
Native American	0

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

Conditions of Medicare patients treated by Dr. Andy Tie Wen Chang, MD in 2016

Hypertension	53
High Cholesterol	54
Stroke	0
Ischemic Heart Disease	23
Depression	9
Chronic Kidney Disease	22
Asthma	7
Osteoperosis	7
Atrial Fibrilation	8
Heart Failure	11
Chronic Obstructive Pulmonary Disease	0
Diabetes	29
Dementia	9
Cancer	0

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Andy Tie Wen Chang, MD treated as a family medicine practitioner in Fremont, CA during 2017 were preventive care and vaccines.

Volume of procedures performed by Dr. Andy Tie Wen Chang, MD for Medicare patients.

doctor visit	294
preventive care	23
vaccines	23

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Andy Tie Wen Chang, MD.

**Gender**
Male	87
Female	83

**Ethnicity**
Non-Hispanic White	39
Black	0
Hispanic	0
Asian	112
Other	0
Native American	0

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

Conditions of Medicare patients treated by Dr. Andy Tie Wen Chang, MD in 2017

Hypertension	54
High Cholesterol	57
Stroke	0
Ischemic Heart Disease	22
Depression	12
Chronic Kidney Disease	26
Asthma	6
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	7
Chronic Obstructive Pulmonary Disease	0
Diabetes	25
Dementia	13
Cancer	0

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Andy Tie Wen Chang, MD treated as a family medicine practitioner in Fremont, CA during 2018 were preventive care and vaccines.

Volume of procedures performed by Dr. Andy Tie Wen Chang, MD for Medicare patients.

doctor visit	344
preventive care	27
vaccines	27

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Andy Tie Wen Chang, MD.

**Gender**
Male	90
Female	89

**Ethnicity**
Non-Hispanic White	32
Black	0
Hispanic	0
Asian	123
Other	11
Native American	0

**Age**
From 65 to 74	90
From 75 to 84	59
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Andy Tie Wen Chang, MD in 2018

Hypertension	51
High Cholesterol	55
Stroke	0
Ischemic Heart Disease	19
Depression	7
Chronic Kidney Disease	23
Asthma	0
Osteoperosis	9
Atrial Fibrilation	0
Heart Failure	8
Chronic Obstructive Pulmonary Disease	0
Diabetes	21
Dementia	9
Cancer	9

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Andy Tie Wen Chang, MD treated as a family medicine practitioner in Fremont, CA during 2019 were preventive care and vaccines.

Volume of procedures performed by Dr. Andy Tie Wen Chang, MD for Medicare patients.

doctor visit	360
preventive care	64
vaccines	64

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Andy Tie Wen Chang, MD.

**Gender**
Male	90
Female	89

**Ethnicity**
Non-Hispanic White	24
Black	0
Hispanic	0
Asian	133
Other	0
Native American	0

**Age**
From 65 to 74	95
From 75 to 84	55
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Andy Tie Wen Chang, MD in 2019

Hypertension	53
High Cholesterol	55
Stroke	0
Ischemic Heart Disease	20
Depression	8
Chronic Kidney Disease	22
Asthma	0
Osteoperosis	8
Atrial Fibrilation	6
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	23
Dementia	11
Cancer	6

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Andy Tie Wen Chang, MD treated as a family medicine practitioner in Fremont, CA during 2020 were preventive care and vaccines.

Volume of procedures performed by Dr. Andy Tie Wen Chang, MD for Medicare patients.

doctor visit	312
preventive care	43
vaccines	43

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Andy Tie Wen Chang, MD.

**Gender**
Male	98
Female	79

**Ethnicity**
Non-Hispanic White	34
Black	0
Hispanic	0
Asian	120
Other	12
Native American	0

**Age**
From 65 to 74	94
From 75 to 84	51
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Andy Tie Wen Chang, MD in 2020

Hypertension	51
High Cholesterol	56
Stroke	0
Ischemic Heart Disease	20
Depression	7
Chronic Kidney Disease	26
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	8
Chronic Obstructive Pulmonary Disease	0
Diabetes	24
Dementia	10
Cancer	0

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Andy Tie Wen Chang, MD treated as a family medicine practitioner in Fremont, CA during 2021 were preventive care and vaccines.

Volume of procedures performed by Dr. Andy Tie Wen Chang, MD for Medicare patients.

doctor visit	402
preventive care	22
vaccines	22

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Andy Tie Wen Chang, MD.

**Gender**
Male	93
Female	87

**Ethnicity**
Non-Hispanic White	31
Black	0
Hispanic	0
Asian	125
Other	0
Native American	0

**Age**
From 65 to 74	89
From 75 to 84	59
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Andy Tie Wen Chang, MD in 2021

Hypertension	51
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	21
Depression	8
Chronic Kidney Disease	23
Asthma	0
Osteoperosis	12
Atrial Fibrilation	7
Heart Failure	7
Chronic Obstructive Pulmonary Disease	0
Diabetes	28
Dementia	10
Cancer	7

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

Volume of procedures performed by Dr. Andy Tie Wen Chang, MD for Medicare patients.

doctor visit	349

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Andy Tie Wen Chang, MD.

**Gender**
Male	89
Female	87

**Ethnicity**
Non-Hispanic White	22
Black	0
Hispanic	0
Asian	132
Other	0
Native American	0

**Age**
From 65 to 74	89
From 75 to 84	57
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Andy Tie Wen Chang, MD in 2022

Hypertension	66
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	18
Depression	7
Chronic Kidney Disease	17
Asthma	0
Osteoperosis	15
Atrial Fibrilation	8
Heart Failure	11
Chronic Obstructive Pulmonary Disease	0
Diabetes	31
Dementia	9
Cancer	11

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

Volume of procedures performed by Dr. Andy Tie Wen Chang, MD for Medicare patients.

doctor visit	392

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Andy Tie Wen Chang, MD.

**Gender**
Male	95
Female	95

**Ethnicity**
Non-Hispanic White	33
Black	0
Hispanic	0
Asian	130
Other	15
Native American	0

**Age**
From 65 to 74	90
From 75 to 84	64
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Andy Tie Wen Chang, MD in 2023

Hypertension	67
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	20
Depression	8
Chronic Kidney Disease	18
Asthma	8
Osteoperosis	16
Atrial Fibrilation	7
Heart Failure	11
Chronic Obstructive Pulmonary Disease	0
Diabetes	30
Dementia	8
Cancer	9

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Andy Tie Wen Chang, MD treated as a family medicine practitioner in Fremont, CA during 2024 were preventive care and vaccines.

Volume of procedures performed by Dr. Andy Tie Wen Chang, MD for Medicare patients.

doctor visit	403
preventive care	16
vaccines	16

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Andy Tie Wen Chang, MD.

**Gender**
Male	101
Female	96

**Ethnicity**
Non-Hispanic White	35
Black	0
Hispanic	0
Asian	137
Other	13
Native American	0

**Age**
From 65 to 74	82
From 75 to 84	82
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Andy Tie Wen Chang, MD in 2024

Hypertension	65
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	25
Depression	0
Chronic Kidney Disease	24
Asthma	7
Osteoperosis	18
Atrial Fibrilation	11
Heart Failure	10
Chronic Obstructive Pulmonary Disease	0
Diabetes	34
Dementia	6
Cancer	11

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Andy Tie Wen Chang, MD for Medicare patients.

The highest averages for the top procedures that Dr. Andy Tie Wen Chang, MD treated as a family medicine practitioner in Fremont, CA were preventive care and vaccines.

doctor visit	330
preventive care	36
vaccines	36

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Andy Tie Wen Chang, MD.

**Gender**
Male	87
Female	82

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	116
Non-Hispanic White	32
Native American / Alaskan Native	0
Hispanic	0
Other	3

**Age**
75 to 84	53
85 and over	1
Less than 65	0
65 to 74	84

Average of Total of Conditions of Medicare patients treated by Dr. Andy Tie Wen Chang, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Andy Tie Wen Chang, MD treated were high cholesterol, hypertension, diabetes and chronic kidney disease.

Hypertension	51
High Cholesterol	54
Stroke	0
Ischemic Heart Disease	19
Depression	7
Chronic Kidney Disease	19
Asthma	2
Osteoporosis	8
Heart Failure	6
Chronic Obstructive Pulmonary Disease	0
Diabetes	23
Atrial Fibrillation	3
Cancer	5
Dementia	8

Education & Training

Dr. Andy Tie Wen Chang, MD graduated from University of Southern California (USC), Keck School of Medicine in 1999. He completed residency at Pomona Valley Hospital Medical Center. He is certified by the Board Certification: Family Medicine and has a state license in California.

Medical School: University of Southern California (USC), Keck School of Medicine (1999)

Residency: Pomona Valley Hospital Medical Center (2002)

Board Certification: Board Certification: Family Medicine

Licensed In: California

Affiliations & Hospitals

Dr. Andy Tie Wen Chang, MD is associated with these hospitals and organizations:

Sutter Health

Washington Hospital Healthcare System

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. Andy Tie Wen Chang, MD appears to accept the following insurance providers: Private Healthcare Systems (PHCS), WellCare, Medicare Advantage, MultiPlan, Anthem Blue Cross of California, Blue Shield of California, United Healthcare, Cigna, Alliance PPO, HealthSmart, Health Net: ELECT POS, Large and Small Group, Aetna: Aetna Signature Administrators (ASA), Aetna: Quality Point of Service (QPOS), Health Net: Health Net PPO, Chinese Community Health Plan: Active Choice- PPO Silver, Aetna: Aetna Student Health Program, Aetna: National Advantage Plan (NAP), Central California Alliance for Health: TotalCare (HMO D-SNP), TRICARE: Prime Remote, Aetna: Stanford University Faculty & Staff (SUFS) - Copay Plan - Open Access Aetna Select, TRICARE: Select (formerly TRICARE Standard and TRICARE Extra), Health Net: SELECT three-tier POS and SELECT two-tier POS, Large and Small Group, Health Net: Health Net HMO: Large Group (101+ employees) & Small Group (2-100 employees), TRICARE: Retired Reserve, Aetna: Aetna Choice POS II, Valley Health Plan: Classic Commercial HMO Plan only, Aetna: Traditional Choice, Aetna: HMO Deductible Plans, Aetna: Managed Choice POS, Aetna: Health Fund POS, Aetna: Open Access Elect Choice EPO, SCAN: SCAN Compass (HMO), Aetna: Stanford University Faculty & Staff (SUFS) ACA High Deductible Health Plan POS II (ACA HDHP-POS II), Aetna: Aetna Select Open Access, Sutter Health Plan: Individual and Family Plan HMO, Provider Networks of America: PPO, Aetna: Health Fund HMO (aka HMO/HRA), TRICARE: Reserve Select, Health Net: ELECT Open Access POS, Large and Small Group, Santa Clara Family Health Plan: DualConnect (HMO D-SNP), Aetna: Open Access Managed Choice POS, TRICARE: Extended Care Option (ECHO), Aetna: HMO, Health Net: PPO for Small Business Health Options Program (SHOP)/Covered California, Sutter Health Plan: Large and Small Group HMO, Health Net: Salud HMO Plus Large/Custom Group, TRICARE: Prime, Aetna: Open Choice PPO, Aetna: Aetna Select EPO, Aetna: Stanford University Faculty & Staff (SUFS) High Deductible Health Plan POS II (HDHP POS II) and TRICARE: Young Adult.

Insurance Accepted by Provider includes:

According to our sources, Dr. Andy Tie Wen Chang, MD accepts the following insurance providers:

Private Healthcare Systems (PHCS)

WellCare

Medicare Advantage

MultiPlan

Anthem Blue Cross of California

Blue Shield of California

United Healthcare

Cigna

Alliance PPO

HealthSmart

Health Net: ELECT POS, Large and Small Group

Aetna: Aetna Signature Administrators (ASA)

Aetna: Quality Point of Service (QPOS)

Health Net: Health Net PPO

Chinese Community Health Plan: Active Choice- PPO Silver

Aetna: Aetna Student Health Program

Aetna: National Advantage Plan (NAP)

Central California Alliance for Health: TotalCare (HMO D-SNP)

TRICARE: Prime Remote

Aetna: Stanford University Faculty & Staff (SUFS) - Copay Plan - Open Access Aetna Select

TRICARE: Select (formerly TRICARE Standard and TRICARE Extra)

Health Net: SELECT three-tier POS and SELECT two-tier POS, Large and Small Group

Health Net: Health Net HMO: Large Group (101+ employees) & Small Group (2-100 employees)

TRICARE: Retired Reserve

Aetna: Aetna Choice POS II

Valley Health Plan: Classic Commercial HMO Plan only

Aetna: Traditional Choice

Aetna: HMO Deductible Plans

Aetna: Managed Choice POS

Aetna: Health Fund POS

Aetna: Open Access Elect Choice EPO

SCAN: SCAN Compass (HMO)

Aetna: Stanford University Faculty & Staff (SUFS) ACA High Deductible Health Plan POS II (ACA HDHP-POS II)

Aetna: Aetna Select Open Access

Sutter Health Plan: Individual and Family Plan HMO

Provider Networks of America: PPO

Aetna: Health Fund HMO (aka HMO/HRA)

TRICARE: Reserve Select

Health Net: ELECT Open Access POS, Large and Small Group

Santa Clara Family Health Plan: DualConnect (HMO D-SNP)

Aetna: Open Access Managed Choice POS

TRICARE: Extended Care Option (ECHO)

Aetna: HMO

Health Net: PPO for Small Business Health Options Program (SHOP)/Covered California

Sutter Health Plan: Large and Small Group HMO

Health Net: Salud HMO Plus Large/Custom Group

TRICARE: Prime

Aetna: Open Choice PPO

Aetna: Aetna Select EPO

Aetna: Stanford University Faculty & Staff (SUFS) High Deductible Health Plan POS II (HDHP POS II)

TRICARE: Young Adult

Ratings & Reviews

Dr. Andy Tie Wen Chang, MD has an exceptional overall rating with an average of 4.9 out of 5 stars based on 328 ratings. We collect ratings and reviews of Dr. Andy Tie Wen Chang, MD from all over the web to help you find the right in Fremont, CA.

4.9

Overall Rating

(328 Ratings)

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General Payments

These charts describe general payments received by Dr. Andy Tie Wen Chang, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Gilead Sciences, Inc.	$1,560 Vemlidy $1,540	Descovy $20
Alcon Laboratories Inc	$1,118 Cataract Equipment $615	Luxor $328	CataractEquipment $38	$137
SANOFI-AVENTIS U.S. LLC	$1,005 Osteoarthritis of the knee $140	DIABETES - DISEASE $35	$830
Becton, Dickinson and Company	$765 $765
Gilead Sciences Inc	$349 Vemlidy $114	Viread $60	$175
Other	$515 WATCHMAN Access System $93	PROAIR $50	ZAVZPRET $42	RYBELSUS $33	ZYCLARA $28	Other $269

**Types of Payments**
Consulting Fee	$2,388
Food and Beverage	$1,570
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program	$1,005
Honoraria	$175
Education	$73
Other	$101

Biography

Dr. Andy Chang is a physician who specializes in family medicine. Dr. Chang is affiliated with Washington Hospital Healthcare System. His education and training includes medical school at the University of Southern California (USC), Keck School of Medicine and residency at Pomona Valley Hospital Medical Center. Dr. Chang (or staff) is conversant in Mandarin and Spanish.