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Dr. Oliver Ong, MD

Endocrinologist

Glendale, CA

23 Years of Experience

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Ong, Endocrinologist in Glendale, CA?

    Dr. Oliver Ong, MD is an Endocrinologist, who primarily practices in Glendale, CA with 2 additional practice locations. He has been practicing for over 23 years and is board certified. Dr. Ong graduated from Mechanical Engineering and completed his residency at Baylor Coll Of Med, Endocrinology, Diabetes & Metabolism; Baylor Coll Of Med, Internal Medicine. Dr. Ong is fluent in English, Spanish, and Tagalog, and is currently seeing new patients. Dr. Ong’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Ong’s office at (818) 265-2242.

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

    • Residency: Baylor Coll Of Med, Endocrinology, Diabetes & Metabolism; Baylor Coll Of Med, Internal Medicine | Baylor College of Medicine Program

    • Medical School: Mechanical Engineering

    Is Dr. Ong board certified as an Endocrinologist?

    Yes, Dr. Oliver Ong, MD is board certified by the American Board of Internal Medicine

    What languages does Dr. Ong speak?

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

    • English
    • Spanish
    • Tagalog

    What conditions does an Endocrinologist like Dr. Ong typically treat?

    As an Endocrinologist, 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. Learn more about our claims-based healthcare methodology.

    Also known as:

    • Type 2 Diabetes
    • Diabetes Type 2
    • Type 2 diabetes
    • Diabetes Mellitus Type 2
    • Adult-Onset Diabetes
    • Non-Insulin Dependent Diabetes

    ICD-10 Codes:

    • E119: Type 2 diabetes mellitus without complications

    Also known as:

    • Other Long-Term Drug Therapy
    • Chronic medication use
    • Ongoing drug treatment
    • Extended drug therapy

    ICD-10 Codes:

    • Z79899: Other long term (current) drug therapy

    Also known as:

    • Other Specific B Vitamin Deficiency
    • B Vitamins
    • Malnutrition
    • Specific B Vitamin Shortage
    • Less Common B Vitamin Deficiency
    • Rare B Vitamin Deficiency

    ICD-10 Codes:

    • E538: Deficiency of other specified B group vitamins

    Also known as:

    • High Cholesterol
    • Cholesterol
    • Triglycerides
    • Hyperlipidemia
    • High lipids
    • Dyslipidemia

    ICD-10 Codes:

    • E785: Hyperlipidemia, unspecified

    Also known as:

    • Nontoxic Multinodular Goiter
    • Thyroid Disease
    • Multinodular Goiter
    • Lumpy Enlarged Thyroid

    ICD-10 Codes:

    • E042: Nontoxic multinodular goiter

    What procedures does an Endocrinologist like Dr. Ong typically perform?

    As an Endocrinologist, Dr. Ong performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed 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. Learn more about our claims-based healthcare methodology.

    Also known as:

    • Ultrasound-Guided Fine Needle Biopsy
    • Biopsy
    • Ultrasound
    • FNA Biopsy with Ultrasound
    • Image-Guided Biopsy
    • Fine Needle Aspiration
    • First Lesion Biopsy

    CPT Codes:

    • 10005: Fine needle aspiration biopsy, including ultrasound guidance; first lesion

    Does Dr. Ong accept my insurance?

    Dr. Ong accepts most major insurance plans. Important: Please call our office at (818) 265-2242 before your appointment to verify that your specific plan and network are accepted.

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

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

    Top Insurances

    • Alignment Healthcare

    • Centene Corporation

    • City of Los Angeles

    • Heritage Health

    • Humana

    • OptumRx Administered Payer

    • Other Health Care Provider

    • Other Provider Networks

    • Preferred IPA

    • UnitedHealth Group

    View All Insurances

    Where is Dr. Ong's office located?

    Dr. Oliver Ong's Primary Practice

    801 S Chevy Chase Dr Ste 200

    Glendale, CA 91205

    (818) 265-2242

    Get Directions

    Dr. Oliver Ong's Practice 2

    2950 Sycamore Dr

    Simi Valley, CA 93065

    Get Directions

    Dr. Oliver Ong's Practice 3

    544 North Ave Unit B

    Glendale, CA 91206

    Get Directions

    What hospitals are Dr. Ong affiliated with?

    CastleConnolyTopDoctors

    Castle Connolly Top Hospital

    This doctor is affiliated with a Castle Connolly Top Hospital.

    Dr. Ong has admitting privileges at the following hospitals:

    Providence Saint Joseph Medical Center,Burbank, CA
    Adventist Health Simi Valley,Simi Valley, CA
    Usc Verdugo Hills Hospital,Glendale, CA
    Cha Hollywood Presbyterian Medical Center,Los Angeles, CA

    What is Dr. Ong's NPI number?A 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 1811951734.

    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. Oliver Ong's specialty?

    Dr. Ong is an Endocrinologist near Glendale, CA.

    What does an Endocrinologist do?

    An internist specializing in disorders of the endocrine glands, including the thyroid and adrenal glands. This specialist also manages a range of conditions such as diabetes, metabolic and nutritional disorders, obesity, pituitary disorders, and menstrual and sexual health issues.

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

    Yes, Dr. Ong is affiliated with Adventist Health Glendale, Dignity Health - Glendale Memorial Hospital & Health 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 Endocrinologist?: Guides for symptoms, conditions, and treatments

    Understand your symptoms and know when it’s time to see an Endocrinologist. 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. Oliver Ong accepting new patients in Glendale, CA?

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

    Does Dr. Oliver Ong offer online booking?

    Please contact Dr. Ong's office at (818) 265-2242 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Dr. Oliver Ong?

    Please contact Dr. Ong's office at (818) 265-2242 to schedule an appointment.

    Where is Dr. Ong's office located?

    Dr. Ong's offices are located in Glendale, CA and Simi Valley, CA.

    Which board certifications does Dr. Oliver Ong have?

    Dr. Oliver Ong is certified by the American Board of Internal Medicine.