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Dr. William Weiming Chang, DO

Accepting New Patients
Specializes in: Adult Pulmonology and Adult Critical Care
Michigan State University College of Osteopathic Medicine (2000)
Professional interests include: empyema, injuries, hemoptysis, and more.
30230 Rancho Viejo Road Suite 200
San Juan Capistrano, CA 92675

Dr. William Weiming Chang, DO is a pulmonologist in San Juan Capistrano, CA specializing in adult pulmonology and adult critical care. He graduated from Michigan State University College of Osteopathic Medicine in 2000 and has 26 years of experience. Dr. William Weiming Chang, DO is affiliated with Providence, Saddleback Medical Center, MemorialCare, MemorialCare Medical Group, Providence Mission Hospital - Laguna Beach and Providence Mission Hospital - Mission Viejo.

View Doctor's Full Profile (949) 443-4303

Office Locations

30230 Rancho Viejo Road Suite 200
San Juan Capistrano, CA 92675
open_in_new

MemorialCare Medical Group

23141 Moulton Parkway Suite 108
Laguna Hills, CA
(949) 443-4303
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Some issues Dr. William Weiming Chang, DO can help you with:

Bronchoscopy

Bronchoscopy is a procedure in which a thin tube with a camera, called a bronchoscope, is inserted in the mouth or nose and slowly advanced to the lungs. This allows doctors to see the respiratory tract, which includes the throat, larynx (voice box), trachea (windpipe), bronchi (airways), and lungs. Doctors may recommend those who have or show signs of lung problems - for example, lung cancer or difficulty breathing - to undergo a bronchoscopy.

In performing a diagnostic bronchoscopy, doctors may only wish to visualize the respiratory tract, or doctors may also collect samples of tissue or fluid. The samples can help diagnose patients' conditions or, if patients have cancer, they can be used for staging purposes. One method for sample collection is bronchoalveolar lavage. In a bronchoalveolar lavage, doctors inject saline (salt water) through the bronchoscope and then suction it out of the airways. The washout collected is tested for lung disorders. Doctors can also insert a biopsy tool to collect tissue or mucus samples. The following are biopsies that can be performed by bronchoscopy:

  • Brush biopsy, which uses a brush to collect samples.
  • Endobronchial biopsy, which uses the bronchoscope to guide forceps to sample lung tissue.
  • Transbronchial biopsy, which uses forceps and image guidance - such as X-rays, CT scans, or fluoroscopy - to sample lung tissue.
  • Transbronchial fine needle aspiration (TBNA), which uses a small needle to take samples of the lymph nodes or lungs.

For visualization, bronchoscopy can be done alone, or it can be combined with ultrasound. Endobronchial ultrasound (EBUS) allows real-time imaging of the airway and is used for diagnosing and staging lung cancer, as well as for determining where the cancer has spread. EBUS can be performed with TBNA, a procedure known as endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA).

Doctors can also use bronchoscopy as a treatment for lung problems. For example, if a foreign body is trapped in the airway, doctors can insert forceps through the bronchoscope to remove it. If the airway has become narrowed - which may occur if patients have an infection, cancer, or some other inflammatory issue - bronchoscopy can be used to place a device called a stent in the area of constriction. The stent will keep the airway open, allowing the patient to breathe properly.

During a bronchoscopy, patients will be given medication (sedative) to help them relax. If it is only a diagnostic bronchoscopy, patients will be kept awake, but if the bronchoscopy is for therapeutic purposes, patients will be put to sleep by general anesthesia. After the procedure, patients will need to stay in the hospital for a few hours. They will not be able to eat or drink for about 2 hours. Some patients may experience discomfort, such as a sore throat or pain while swallowing. Throat lozenges and gargling may help alleviate these symptoms, which should go away after a few days. Patients will need to have someone drive them home once their doctor determines that they are ready.

CPAP Treatment

Continuous positive airway pressure (CPAP) treatment is a medical treatment for people with sleep apnea. Sleep apnea interrupts breathing during sleep, resulting in lapses of oxygen. Lapses of oxygen may in turn lead to severe headaches, heart problems, fatigue, and poor sleep quality. The CPAP device remedies sleep apnea by forcing open the airway with pressurized air, ensuring someone receives enough oxygen while sleeping. The CPAP device is a mask attached to a machine (with a tube) that takes in air from the surrounding room, filters it, and then pressurizes it. The constant flow of pressurized air treats sleep apnea by keeping the tongue and soft palate from obstructing the throat and airway. Benefits of CPAP treatment include:

  • Improved concentration and focus
  • Reduced snoring
  • Lowered risk of heart disease and stroke
  • Improved mental health

In order to receive a CPAP device, patients must receive a prescription from a physician. Some patients may be asked to complete an overnight sleep study known as a titration study. A titration study monitors patients' sleep using a mask attached to a CPAP machine. The technician may monitor and adjust the CPAP's air pressure throughout the night. The purpose of a titration study is to determine the appropriate air pressure for patients with obstructive sleep apnea (blocked upper airway). Once an appropriate CPAP pressure is identified, physicians or sleep technicians may recommend a specific brand or style of device to the patient for long-term use.

Lung Issues

Every cell in the body requires oxygen to function and produces carbon dioxide as a waste product. In order to keep the body's tissues constantly supplied with fresh oxygen and to keep waste from building up, the lungs pump air in and out, even while sleeping or unaware. Unfortunately, diseases and disorders affecting the lungs are some of the most common medical problems afflicting people around the world. Some of the most common lung problems include asthma, COPD, pneumonia, and lung cancer.

Asthma is a chronic disease where swollen, inflamed airways make it hard to breathe. It is often brought on by specific triggers. While asthma is a common condition, affecting millions of people, it can also be serious and even fatal in severe cases. Treatment involves avoiding triggers and using inhaled corticosteroid medications.

COPD, or Chronic Obstructive Pulmonary Disease, is the name given to two illnesses that both cause difficulty breathing: emphysema and chronic bronchitis. In emphysema, the air sacs of the lungs become damaged, while with bronchitis they become clogged with mucus. COPD is the fourth leading cause of death in the United States. It is almost always caused by breathing irritants into the lungs, such as smoking or heavy pollution.

Pneumonia is a lung infection that can be caused by bacteria, a virus, or fungi. Most healthy people recover from pneumonia in a week or two, but for some people pneumonia can be fatal. There are treatments available for pneumonia, but the best treatment is to prevent getting sick in the first place. People who are at risk should make sure they get a flu shot every year. There is also a vaccine available for the type of bacteria that causes pneumonia.

Lung cancer occurs when abnormal cells inside the lung grow into a tumor, destroying healthy tissue. Because it is so difficult to detect lung cancer in early stages when it has few symptoms, it is the deadliest form of cancer, responsible for the most cancer deaths both in the U.S. and worldwide. Most lung cancer is caused by exposure to tobacco smoke, but between 10-15% of cases are not linked to smoking.

Some problems with the lungs are minor and are not cause for concern. However if symptoms have lasted for a month or more, even if they are minor, it is worth checking with a healthcare professional. A cough, shortness of breath, or excess mucus production that lingers for weeks are all worth getting looked at.

Noteworthy Medicare Patient Procedures Performed by Dr. William Weiming Chang, DO in 2023

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

Top 10%

By Volume:

pulmonary function test

In 2023, Dr. William Weiming Chang, DO performed more pulmonary function test (PFT) procedures for Medicare patients than 90% of providers in related specialties within California.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. William Weiming Chang, DO treated as a pulmonologist in San Juan Capistrano, CA during 2012 were hospital care, inpatient care, pulmonary testing and bronchoscopy.

Volume of procedures performed by Dr. William Weiming Chang, DO for Medicare patients.

bronchoscopy 33
catheterization 18
doctor visit 479
hospital care 511
inpatient care 511
pulmonary testing 65

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. William Weiming Chang, DO treated as a pulmonologist in San Juan Capistrano, CA during 2013 were hospital care, inpatient care, pulmonary testing and bronchoscopy.

Volume of procedures performed by Dr. William Weiming Chang, DO for Medicare patients.

bronchoscopy 24
doctor visit 467
hospital care 450
inpatient care 450
pulmonary testing 68

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. William Weiming Chang, DO.

Gender
Male 144
Female 180
Ethnicity
Non-Hispanic White 260
Black 0
Hispanic 20
Asian 29
Other 0
Native American 0
Age
From 65 to 74 118
From 75 to 84 103
85 and over 79
Less than 65 24

Conditions of Medicare patients treated by Dr. William Weiming Chang, DO in 2013

Hypertension 75
High Cholesterol 57
Stroke 14
Ischemic Heart Disease 56
Depression 29
Chronic Kidney Disease 44
Asthma 20
Osteoperosis 17
Atrial Fibrilation 26
Heart Failure 46
Chronic Obstructive Pulmonary Disease 40
Diabetes 33
Dementia 23
Cancer 17

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. William Weiming Chang, DO treated as a pulmonologist in San Juan Capistrano, CA during 2014 were hospital care, inpatient care, pulmonary testing and bronchoscopy.

Volume of procedures performed by Dr. William Weiming Chang, DO for Medicare patients.

bronchoscopy 29
doctor visit 601
hospital care 494
inpatient care 494
preventive care 14
pulmonary testing 131
vaccines 14

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. William Weiming Chang, DO.

Gender
Male 152
Female 200
Ethnicity
Non-Hispanic White 280
Black 0
Hispanic 17
Asian 40
Other 0
Native American 0
Age
From 65 to 74 142
From 75 to 84 108
85 and over 78
Less than 65 24

Conditions of Medicare patients treated by Dr. William Weiming Chang, DO in 2014

Hypertension 74
High Cholesterol 60
Stroke 13
Ischemic Heart Disease 51
Depression 27
Chronic Kidney Disease 38
Asthma 24
Osteoperosis 18
Atrial Fibrilation 24
Heart Failure 37
Chronic Obstructive Pulmonary Disease 42
Diabetes 35
Dementia 22
Cancer 21

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. William Weiming Chang, DO treated as a pulmonologist in San Juan Capistrano, CA during 2015 were hospital care, inpatient care, pulmonary testing and chronic care.

Volume of procedures performed by Dr. William Weiming Chang, DO for Medicare patients.

bronchoscopy 14
chronic care 35
doctor visit 809
hospital care 563
inpatient care 563
preventive care 22
pulmonary testing 145
vaccines 22

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. William Weiming Chang, DO.

Gender
Male 380
Female 464
Ethnicity
Non-Hispanic White 634
Black 0
Hispanic 48
Asian 122
Other 0
Native American 0
Age
From 65 to 74 286
From 75 to 84 316
85 and over 180
Less than 65 62

Conditions of Medicare patients treated by Dr. William Weiming Chang, DO in 2015

Hypertension 75
High Cholesterol 63
Stroke 10
Ischemic Heart Disease 49
Depression 32
Chronic Kidney Disease 38
Asthma 35
Osteoperosis 17
Atrial Fibrilation 20
Heart Failure 37
Chronic Obstructive Pulmonary Disease 41
Diabetes 35
Dementia 25
Cancer 18

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. William Weiming Chang, DO treated as a pulmonologist in San Juan Capistrano, CA during 2016 were hospital care, inpatient care, pulmonary testing and preventive care.

Volume of procedures performed by Dr. William Weiming Chang, DO for Medicare patients.

bronchoscopy 19
doctor visit 1055
hospital care 615
inpatient care 615
preventive care 28
pulmonary testing 256
vaccines 28

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. William Weiming Chang, DO.

Gender
Male 223
Female 311
Ethnicity
Non-Hispanic White 402
Black 0
Hispanic 39
Asian 76
Other 0
Native American 0
Age
From 65 to 74 193
From 75 to 84 169
85 and over 128
Less than 65 44

Conditions of Medicare patients treated by Dr. William Weiming Chang, DO in 2016

Hypertension 74
High Cholesterol 61
Stroke 9
Ischemic Heart Disease 49
Depression 30
Chronic Kidney Disease 42
Asthma 48
Osteoperosis 13
Atrial Fibrilation 20
Heart Failure 39
Chronic Obstructive Pulmonary Disease 45
Diabetes 32
Dementia 23
Cancer 14

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. William Weiming Chang, DO treated as a pulmonologist in San Juan Capistrano, CA during 2017 were hospital care, inpatient care, pulmonary testing and preventive care.

Volume of procedures performed by Dr. William Weiming Chang, DO for Medicare patients.

bronchoscopy 12
doctor visit 958
hospital care 409
inpatient care 396
outpatient care 13
preventive care 35
pulmonary testing 244
vaccines 35

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. William Weiming Chang, DO.

Gender
Male 226
Female 275
Ethnicity
Non-Hispanic White 365
Black 0
Hispanic 29
Asian 84
Other 0
Native American 0
Age
From 65 to 74 166
From 75 to 84 182
85 and over 127
Less than 65 26

Conditions of Medicare patients treated by Dr. William Weiming Chang, DO in 2017

Hypertension 73
High Cholesterol 53
Stroke 10
Ischemic Heart Disease 49
Depression 26
Chronic Kidney Disease 45
Asthma 27
Osteoperosis 18
Atrial Fibrilation 20
Heart Failure 41
Chronic Obstructive Pulmonary Disease 44
Diabetes 34
Dementia 21
Cancer 18

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. William Weiming Chang, DO treated as a pulmonologist in San Juan Capistrano, CA during 2018 were hospital care, inpatient care, pulmonary testing and sleep study.

Volume of procedures performed by Dr. William Weiming Chang, DO for Medicare patients.

airway management 13
catheterization 11
chronic care 28
doctor visit 996
hospital care 624
inpatient care 594
outpatient care 30
preventive care 31
pulmonary testing 437
sleep study 45
vaccines 31

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. William Weiming Chang, DO.

Gender
Male 343
Female 356
Ethnicity
Non-Hispanic White 480
Black 0
Hispanic 44
Asian 143
Other 0
Native American 0
Age
From 65 to 74 245
From 75 to 84 234
85 and over 164
Less than 65 56

Conditions of Medicare patients treated by Dr. William Weiming Chang, DO in 2018

Hypertension 75
High Cholesterol 64
Stroke 10
Ischemic Heart Disease 49
Depression 29
Chronic Kidney Disease 45
Asthma 21
Osteoperosis 15
Atrial Fibrilation 18
Heart Failure 39
Chronic Obstructive Pulmonary Disease 37
Diabetes 31
Dementia 19
Cancer 18

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. William Weiming Chang, DO treated as a pulmonologist in San Juan Capistrano, CA during 2019 were hospital care, inpatient care, pulmonary testing and preventive care.

Volume of procedures performed by Dr. William Weiming Chang, DO for Medicare patients.

breathing treatment 14
bronchoscopy 18
catheterization 14
doctor visit 1139
hospital care 434
inpatient care 420
outpatient care 14
preventive care 48
pulmonary testing 319
sleep study 21
vaccines 48

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. William Weiming Chang, DO.

Gender
Male 311
Female 340
Ethnicity
Non-Hispanic White 455
Black 0
Hispanic 35
Asian 129
Other 0
Native American 0
Age
From 65 to 74 234
From 75 to 84 223
85 and over 153
Less than 65 41

Conditions of Medicare patients treated by Dr. William Weiming Chang, DO in 2019

Hypertension 75
High Cholesterol 66
Stroke 9
Ischemic Heart Disease 51
Depression 29
Chronic Kidney Disease 45
Asthma 20
Osteoperosis 16
Atrial Fibrilation 20
Heart Failure 37
Chronic Obstructive Pulmonary Disease 36
Diabetes 32
Dementia 20
Cancer 17

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. William Weiming Chang, DO treated as a pulmonologist in San Juan Capistrano, CA during 2020 were hospital care, inpatient care, pulmonary testing and preventive care.

Volume of procedures performed by Dr. William Weiming Chang, DO for Medicare patients.

doctor visit 815
hospital care 234
inpatient care 234
preventive care 41
pulmonary testing 61
vaccines 41

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. William Weiming Chang, DO.

Gender
Male 216
Female 245
Ethnicity
Non-Hispanic White 320
Black 0
Hispanic 0
Asian 91
Other 26
Native American 0
Age
From 65 to 74 174
From 75 to 84 163
85 and over 94
Less than 65 30

Conditions of Medicare patients treated by Dr. William Weiming Chang, DO in 2020

Hypertension 67
High Cholesterol 62
Stroke 6
Ischemic Heart Disease 49
Depression 26
Chronic Kidney Disease 41
Asthma 20
Osteoperosis 16
Atrial Fibrilation 18
Heart Failure 31
Chronic Obstructive Pulmonary Disease 38
Diabetes 28
Dementia 17
Cancer 16

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. William Weiming Chang, DO treated as a pulmonologist in San Juan Capistrano, CA during 2021 were pulmonary testing, hospital care, inpatient care and preventive care.

Volume of procedures performed by Dr. William Weiming Chang, DO for Medicare patients.

doctor visit 1087
hospital care 251
inpatient care 251
preventive care 11
pulmonary testing 255
vaccines 11

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. William Weiming Chang, DO.

Gender
Male 266
Female 259
Ethnicity
Non-Hispanic White 368
Black 0
Hispanic 24
Asian 106
Other 0
Native American 0
Age
From 65 to 74 202
From 75 to 84 190
85 and over 104
Less than 65 29

Conditions of Medicare patients treated by Dr. William Weiming Chang, DO in 2021

Hypertension 72
High Cholesterol 66
Stroke 9
Ischemic Heart Disease 50
Depression 26
Chronic Kidney Disease 44
Asthma 19
Osteoperosis 12
Atrial Fibrilation 17
Heart Failure 29
Chronic Obstructive Pulmonary Disease 34
Diabetes 32
Dementia 17
Cancer 22

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. William Weiming Chang, DO treated as a pulmonologist in San Juan Capistrano, CA during 2022 were pulmonary testing, hospital care, inpatient care and sleep study.

Volume of procedures performed by Dr. William Weiming Chang, DO for Medicare patients.

doctor visit 1138
hospital care 254
inpatient care 254
preventive care 17
pulmonary testing 395
sleep study 28
vaccines 17

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. William Weiming Chang, DO.

Gender
Male 293
Female 301
Ethnicity
Non-Hispanic White 397
Black 0
Hispanic 0
Asian 135
Other 33
Native American 0
Age
From 65 to 74 205
From 75 to 84 232
85 and over 127
Less than 65 30

Conditions of Medicare patients treated by Dr. William Weiming Chang, DO in 2022

Hypertension 75
High Cholesterol 75
Stroke 14
Ischemic Heart Disease 35
Depression 25
Chronic Kidney Disease 31
Asthma 27
Osteoperosis 16
Atrial Fibrilation 25
Heart Failure 24
Chronic Obstructive Pulmonary Disease 42
Diabetes 31
Dementia 14
Cancer 23

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. William Weiming Chang, DO treated as a pulmonologist in San Juan Capistrano, CA during 2023 were pulmonary testing, hospital care, inpatient care and sleep study.

Volume of procedures performed by Dr. William Weiming Chang, DO for Medicare patients.

doctor visit 1401
hospital care 202
inpatient care 202
preventive care 19
pulmonary testing 591
sleep study 40
vaccines 19

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. William Weiming Chang, DO.

Gender
Male 297
Female 345
Ethnicity
Non-Hispanic White 405
Black 0
Hispanic 0
Asian 163
Other 40
Native American 0
Age
From 65 to 74 215
From 75 to 84 252
85 and over 149
Less than 65 26

Conditions of Medicare patients treated by Dr. William Weiming Chang, DO in 2023

Hypertension 75
High Cholesterol 75
Stroke 12
Ischemic Heart Disease 36
Depression 26
Chronic Kidney Disease 27
Asthma 33
Osteoperosis 23
Atrial Fibrilation 27
Heart Failure 23
Chronic Obstructive Pulmonary Disease 46
Diabetes 31
Dementia 14
Cancer 21

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. William Weiming Chang, DO for Medicare patients.

The highest averages for the top procedures that Dr. William Weiming Chang, DO treated as a pulmonologist in San Juan Capistrano, CA were hospital care, inpatient care, pulmonary testing and sleep study.

airway management 13
bronchoscopy 21
catheterization 14
chronic care 31
doctor visit 912
hospital care 420
inpatient care 415
outpatient care 19
preventive care 26
pulmonary testing 247
sleep study 33
vaccines 26

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. William Weiming Chang, DO.

Gender
Female 273
Male 237
Ethnicity
Black / African American 0
Asian / Pacific Islander 93
Non-Hispanic White 363
Native American / Alaskan Native 0
Hispanic 21
Other 8
Age
75 to 84 181
85 and over 115
Less than 65 32
65 to 74 181

Average of Total of Conditions of Medicare patients treated by Dr. William Weiming Chang, DO From 2012 - 2023

The highest averages of the most common conditions of Medicare patients that Dr. William Weiming Chang, DO treated were hypertension, high cholesterol, ischemic heart disease and chronic obstructive pulmonary disease.

Hypertension 67
High Cholesterol 58
Stroke 9
Ischemic Heart Disease 43
Depression 25
Chronic Kidney Disease 36
Asthma 24
Osteoporosis 15
Heart Failure 31
Chronic Obstructive Pulmonary Disease 37
Diabetes 29
Atrial Fibrillation 19
Dementia 17
Cancer 17

Education & Training

Dr. William Weiming Chang, DO graduated from Michigan State University College of Osteopathic Medicine in 2000. He completed residency at Loma Linda University Medical Center. He is certified by the American Board of Internal Medicine, Critical Care Medicine and has a state license in California.

Medical School: Michigan State University College of Osteopathic Medicine (2000)

Residency: Loma Linda University Medical Center (2003)

Board Certification: American Board of Internal Medicine, Critical Care Medicine

Licensed In: California

Affiliations & Hospitals

Dr. William Weiming Chang, DO is associated with these hospitals and organizations:

Providence
Saddleback Medical Center
MemorialCare
MemorialCare Medical Group
Providence Mission Hospital - Laguna Beach
Providence Mission Hospital - Mission Viejo

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. William Weiming Chang, DO appears to accept the following insurance providers: Anthem Blue Cross HMO, Aetna HMO, Blue Shield of California, United Healthcare HMO, Anthem, Medicare Advantage, Providence, Health Net HMO and CIGNA HMO.

Insurance Accepted by Provider includes:

According to our sources, Dr. William Weiming Chang, DO accepts the following insurance providers:

Anthem Blue Cross HMO
Aetna HMO
Blue Shield of California
United Healthcare HMO
Anthem
Medicare Advantage
Providence
Health Net HMO
CIGNA HMO

Ratings & Reviews

Dr. William Weiming Chang, DO has an exceptional overall rating with an average of 5.0 out of 5 stars based on 1 ratings. We collect ratings and reviews of Dr. William Weiming Chang, DO from all over the web to help you find the right in San Juan Capistrano, CA. 

5
Overall Rating
Leave a Review
Reviews Left On DocSpot
Overall Rating: 5.0 2024-10-28 
Dr. Chang is the best. He treated my husband for 3 years, he was my trusted go to Dr. over all the rest. He was very thorough, thoughtful, clear in his explanations, empathetic and supportive.

General Payments

These charts describe general payments received by Dr. William Weiming Chang, DO. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

Payments by Company
GlaxoSmithKline, LLC. $4,728 TRELEGY ELLIPTA
$1,298 		NUCALA
$997 		ANORO
$886 		BREO
$794 		INCRUSE
$332 		Other
$420
Boehringer Ingelheim Pharmaceuticals, Inc. $3,149 OFEV
$1,367 		SPIRIVA RESPIMAT
$586 		STIOLTO
$378 		JARDIANCE
$169 		STIOLTO RESPIMAT
$144 		Other
$505
AstraZeneca Pharmaceuticals LP $1,891 FASENRA
$583 		BEVESPI AEROSPHERE
$443 		AIRSUPRA
$311 		BREZTRI
$293 		SYMBICORT
$100 		Other
$161
Grifols USA, LLC $964 Prolastin-C Liquid
$580 		Prolastin-C
$384
Insmed, Inc. $772 Arikayce
$772
Other $8,059 DUPIXENT
$1,084 		Esbriet
$711 		XARELTO
$580 		TYVASO
$415 		Wakix
$406 		Other
$4,862
Types of Payments
Food and Beverage $19,206
Education $324
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program $33

Biography

Dr. William Chang is an adult critical care and adult pulmonology specialist in San Juan Capistrano, CA and Laguna Hills, CA. Dr. Chang speaks the following languages: Mandarin and Min Nan. These areas are among his clinical interests: airway obstruction, tracheal stenosis, and pneumonitis (lung inflammation). He is professionally affiliated with Providence, Saddleback Medical Center, and MemorialCare Medical Group. He attended Michigan State University College of Osteopathic Medicine and then went on to complete his residency at Loma Linda University Medical Center. United Healthcare HMO, Anthem, and Blue California seem to be the insurance carriers that Dr. Chang accepts. According to Doctor.com, new patients are welcome to contact his office in San Juan Capistrano, CA.

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