EverydayHealthLogo
Dr. William Chao, MD

Dr. William Chao, MD

Emergency Medicine Specialist

Baldwin Park, CA

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Chao, Emergency Medicine Specialist in Baldwin Park, CA?

    Dr. William Chao, MD is an Emergency Medicine Specialist, who primarily practices in Baldwin Park, CA with 1 additional practice location. He is board certified. Dr. Chao graduated from Northwestern University The Feinberg School of Medicine and completed his residency at McGaw Med Ctr Of Northwestern, Emergency Medicine; Northwestern Mem Hosp, Internal Medicine. Dr. Chao is fluent in English, and is currently seeing new patients. Dr. Chao’s practice accepts Kaiser Permanente, Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Chao’s office at (626) 851-1011.

    Where did Dr. Chao go to medical school and complete their residency?

    • Residency: McGaw Med Ctr Of Northwestern, Emergency Medicine; Northwestern Mem Hosp, Internal Medicine | McGaw Medical Center of Northwestern University Program

    • Medical School: Northwestern Uniiversity | Northwestern University The Feinberg School of Medicine

    Is Dr. Chao board certified as an Emergency Medicine Specialist?

    Yes, Dr. William Chao, MD is board certified by the American Board of Emergency Medicine

    What languages does Dr. Chao speak?

    Dr. Chao and their clinical team can communicate with patients in the following languages:

    • English

    What conditions does an Emergency Medicine Specialist like Dr. Chao typically treat?

    As an Emergency Medicine Specialist, Dr. Chao diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Chao. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.

    Also known as:

    • Non-Infectious Gastroenteritis and Colitis
    • Digestive Disease
    • Inflammation of Stomach and Intestines
    • Non-Bacterial Colitis
    • Gut Inflammation

    ICD-10 Codes:

    • K529: Noninfective gastroenteritis and colitis, unspecified

    Also known as:

    • Pneumonia
    • Lung Infection
    • Chest Infection
    • Pneumonitis

    ICD-10 Codes:

    • J189: Pneumonia, unspecified organism

    Also known as:

    • Common Cold
    • Upper Respiratory Infection
    • Head Cold
    • Cold Symptoms

    ICD-10 Codes:

    • J069: Acute upper respiratory infection, unspecified

    Also known as:

    • Chest Pain
    • Chest discomfort
    • Thoracic pain
    • Pectoral pain

    ICD-10 Codes:

    • R0789: Other chest pain

    Also known as:

    • COVID-19
    • COVID-19 (Coronavirus Disease 2019)
    • Coronavirus Disease 2019
    • SARS-CoV-2 Infection
    • Novel Coronavirus

    ICD-10 Codes:

    • U071: COVID-19

    Also known as:

    • Bruise on Head
    • Bruises
    • Head contusion
    • Head bump
    • Black and blue mark on head

    ICD-10 Codes:

    • S0093XA: Contusion of unspecified part of head, initial encounter

    Also known as:

    • Urinary Tract Infection
    • UTI
    • Bladder infection
    • Kidney infection
    • Urine infection

    ICD-10 Codes:

    • N390: Urinary tract infection, site not specified

    Also known as:

    • Flu with Respiratory Symptoms
    • Flu
    • Influenza with Breathing Problems
    • Flu with Cough
    • Severe Flu

    ICD-10 Codes:

    • J111: Influenza due to unidentified influenza virus with other respiratory manifestations

    What procedures does an Emergency Medicine Specialist like Dr. Chao typically perform?

    As an Emergency Medicine Specialist, procedures performed by Dr. William Chao may include:

    Please contact Dr. Chao's office directly to confirm care for your specific procedure, for more information, or to schedule a consultation.

    Does Dr. Chao accept my insurance?

    Dr. Chao accepts most major insurance plans. Important: Please call our office at (626) 851-1011 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Chao accept in Baldwin Park, CA?

    Dr. Chao in Baldwin Park, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • All Other Commercial

    • Apex Healthcare

    • Centene Corporation

    • City of Los Angeles

    • Kaiser Permanente

    • Medicare

    • Other Health Care Provider

    • Other Provider Networks

    • State of California

    • UnitedHealth Group

    View All Insurances

    Where is Dr. Chao's office located?

    Dr. William Chao's Primary Practice

    1011 Baldwin Park Blvd

    Baldwin Park, CA 91706

    (626) 851-1011

    Get Directions

    Dr. William Chao's Practice 2

    1255 W Arrow Hwy

    San Dimas, CA 91773

    Get Directions

    What is Dr. Chao's NPI number?A National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.

    Dr. Chao's National Provider Identifier (NPI) number is 1841348661.

    What common questions do patients ask about Dr. Chao?

    Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Chao

    What is Dr. William Chao's specialty?

    Dr. Chao is an Emergency Medicine Specialist near Baldwin Park, CA.

    What does an Emergency Medicine Specialist do?

    An emergency physician is dedicated to making prompt decision and taking necessary actions essential for preventing death or additional disabilities. This role encompasses guiding emergency medical technicians in pre-hospital environments as well as providing care within the emergency department. The emergency physician is responsible for the immediate identification, evaluation, treatment, stabilization, and arrangement of a diverse array of adult and pediatric patients facing acute illnesses and injuries.

    Is Dr. William Chao affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Chao is affiliated with Kaiser Permanente Baldwin Park Medical Center, Kaiser Permanente Fontana Medical Center, Kaiser Permanente Los Angeles Medical Center, Community Hospital Of Huntington Park, Kaiser Permanente Orange County - Anaheim Medical Center, Kaiser Permanente West Los Angeles Medical Center which are a Castle Connolly Top Hospitals. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals

    When to see an Emergency Medicine Specialist?: Guides for symptoms, conditions, and treatments

    Understand your symptoms and know when it’s time to see an Emergency Medicine Specialist. Explore insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.

    Is Dr. William Chao accepting new patients in Baldwin Park, CA?

    Yes, Dr. William Chao is accepting new patients at this time.

    Does Dr. William Chao offer online booking?

    Please contact Dr. Chao's office at (626) 851-1011 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Dr. William Chao?

    Please contact Dr. Chao's office at (626) 851-1011 to schedule an appointment.

    Where is Dr. Chao's office located?

    Dr. Chao's offices are located in Baldwin Park, CA and San Dimas, CA.

    Which board certifications does Dr. William Chao have?

    Dr. William Chao is certified by the American Board of Emergency Medicine.