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Dr. William Ong, MD

Livermore, CA

18 Years of Experience

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Ong, Pediatrician in Livermore, CA?

    Dr. William Ong, MD is a Pediatrician, who primarily practices in Livermore, CA with 2 additional practice locations. He has been practicing for over 18 years and is board certified. Dr. Ong graduated from Keck School of Medicine of the University of Southern California and completed his residency at Kaiser Permanente Med Grp, Pediatrics. Dr. Ong is fluent in English, and is currently seeing new patients. Dr. Ong’s practice accepts Kaiser Permanente and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Ong’s office at (925) 243-2600.

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

    • Residency: Kaiser Permanente Med Grp, Pediatrics

    • Medical School: University of Southern Ca Sch of Med, Los Angeles Ca | Keck School of Medicine of the University of Southern California

    What languages does Dr. Ong speak?

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

    • English

    What conditions does Dr. Ong treat?

    As a Pediatrician, Dr. Ong 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. Ong. 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.

    Also known as:

    • Routine Child Health Examination (Normal Findings)
    • Newborn Health Checkup (8-28 Days Old)
    • Health Checkup
    • Baby Health Checkup
    • Infant and Newborn Care
    • Normal Well-Child Checkup
    • Child Physical Exam (No Issues)
    • Routine Pediatric Exam (Clear)
    • Newborn Exam
    • Infant Checkup
    • Post-Birth Checkup

    ICD-10 Codes:

    • Z00129: Encounter for routine child health examination without abnormal findings
    • Z00111: Health examination for newborn 8 to 28 days old

    Also known as:

    • Immunization Visit
    • Vaccines
    • Vaccination appointment
    • Shot visit
    • Immunization encounter

    ICD-10 Codes:

    • Z23: Encounter for immunization

    Also known as:

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

    ICD-10 Codes:

    • J069: Acute upper respiratory infection, unspecified

    Also known as:

    • Routine Eye and Vision Exam (Normal Findings)
    • Eye Disease
    • Vision Impairment and Blindness
    • Annual eye checkup
    • Vision screening, no issues
    • Eye health exam, all clear

    ICD-10 Codes:

    • Z0100: Encounter for examination of eyes and vision without abnormal findings

    Also known as:

    • General Disorder Screening
    • Health Screening
    • General Health Check
    • Disease Screening
    • Medical Disorder Screening

    ICD-10 Codes:

    • Z1389: Encounter for screening for other disorder

    Also known as:

    • Ear Infection
    • Otitis Media
    • Middle Ear Infection
    • Ear Inflammation

    ICD-10 Codes:

    • H6691: Otitis media, unspecified, right ear
    • H6693: Otitis media, unspecified, bilateral
    • H6692: Otitis media, unspecified, left ear

    Also known as:

    • Special Medical Examination
    • Specific health check
    • Detailed medical assessment
    • Special health screening

    ICD-10 Codes:

    • Z0189: Encounter for other specified special examinations

    Also known as:

    • Fever
    • High temperature
    • Pyrexia
    • Elevated body temperature

    ICD-10 Codes:

    • R509: Fever, unspecified

    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

    Also known as:

    • Abdominal Pain
    • Stomach Ache
    • Belly Pain
    • Stomach Pain

    ICD-10 Codes:

    • R109: Unspecified abdominal pain

    Also known as:

    • Eye and Ear Disorder Screening
    • Health Screening
    • Vision Screening
    • Hearing Screening
    • Eye and Ear Check-up

    ICD-10 Codes:

    • Z135: Encounter for screening for eye and ear disorders

    Also known as:

    • Skin Rash
    • Rashes
    • Skin Eruption
    • Hives
    • Dermatitis
    • Skin Inflammation

    ICD-10 Codes:

    • R21: Rash and other nonspecific skin eruption

    Also known as:

    • Pneumonia
    • Lung Infection
    • Chest Infection
    • Pneumonitis

    ICD-10 Codes:

    • J189: Pneumonia, unspecified organism

    Also known as:

    • Cough
    • Coughing
    • Persistent cough
    • Chronic cough

    ICD-10 Codes:

    • R059: Cough, unspecified

    Also known as:

    • Follow-up After Treatment (Non-Cancer)
    • Post-Treatment Check-up
    • Aftercare Visit
    • Recovery Monitoring Exam

    ICD-10 Codes:

    • Z09: Encounter for follow-up examination after completed treatment for conditions other than malignant neoplasm

    Also known as:

    • Sore Throat
    • Acute pharyngitis
    • Throat inflammation
    • Acute throat infection

    ICD-10 Codes:

    • J029: Acute pharyngitis, unspecified

    Also known as:

    • Asthma
    • Reactive Airway Disease
    • Bronchial Asthma
    • Allergic Asthma

    ICD-10 Codes:

    • J45909: Unspecified asthma, uncomplicated

    Which procedures does Dr. Ong perform as a Pediatrician?

    As a Pediatrician, procedures performed by a Dr. William Ong may include:

    For detailed information, please contact Dr. Ong's office.

    Does Dr. Ong accept my insurance?

    Dr. Ong accepts most major insurance plans. Important: Please call our office at (925) 243-2600 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Ong accept in Livermore, CA?

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

    Top Insurances

    • All Other Third Party

    • Crown Cork and Seal Company

    • Express Scripts

    • Kaiser Permanente

    View All Insurances

    Where is Dr. Ong's office located?

    Dr. William Ong's Primary Practice

    3000 Las Positas Rd

    Livermore, CA 94551

    (925) 243-2600

    Get Directions

    Dr. William Ong's Practice 2

    1425 S Main St

    Walnut Creek, CA 94596

    Get Directions

    Dr. William Ong's Practice 3

    1515 Newell Ave

    Walnut Creek, CA 94596

    (925) 295-4000

    Get Directions

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

    Dr. Ong's National Provider Identifier (NPI) number is 1508944604.

    What common questions do patients ask about Dr. Ong?

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

    What is Dr. William Ong's specialty?

    Dr. Ong is a Pediatrician near Livermore, CA. A pediatrician focuses on the physical, emotional, and social health of children from birth through young adulthood. Their care includes a wide range of health services, from preventive healthcare to diagnosing and treating acute and chronic diseases. Pediatricians consider the biological, social, and environmental influences on a child's development, as well as how diseases and dysfunctions can impact growth and overall development. Contact Dr. Ong to book an appointment today.

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

    Yes, Dr. Ong is affiliated with Kaiser Permanente Manteca Medical Center, Kaiser Permanente Oakland 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

    Where can I learn more about Pediatrician?

    Explore Pediatrician with 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 William Ong accepting new patients in Livermore, CA?

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

    Does Dr. William Ong offer online booking?

    Please contact Dr. Ong's office at (925) 243-2600 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with William Ong?

    Please contact Dr. Ong's office at (925) 243-2600 for information regarding telehealth appointment availability or for scheduling assistance.

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