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Dr. Stephen Ong, MD

Santa Clara, CA

15 Years of Experience

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Ong, Internist in Santa Clara, CA?

    Dr. Stephen Ong, MD is an Internist, who primarily practices in Santa Clara, CA with 2 additional practice locations. He has been practicing for over 15 years and is board certified. Dr. Ong is fluent in English and Chinese, and is currently seeing new patients. Dr. Ong’s practice accepts Kaiser Permanente, Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Ong’s office at (408) 851-1000.

    What languages does Dr. Ong speak?

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

    • Chinese

    • English

    What conditions does Dr. Ong treat?

    As a Internist, 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:

    • Sepsis
    • Blood Poisoning
    • Septicemia
    • Systemic Bacterial Infection

    ICD-10 Codes:

    • A419: Sepsis, unspecified organism

    Also known as:

    • High Blood Pressure Heart and Kidney Disease with Heart Failure
    • Chronic Kidney Disease
    • Heart Failure
    • High Blood Pressure
    • Hypertensive Cardiorenal Syndrome
    • Heart and Kidney Failure from High Blood Pressure

    ICD-10 Codes:

    • I130: Hypertensive heart and chronic kidney disease with heart failure and stage 1 through stage 4 chronic kidney disease, or unspecified chronic kidney disease

    Also known as:

    • Pleural Effusion
    • Pleural Disorder
    • Fluid in lungs
    • Water on the lung
    • Fluid around lungs

    ICD-10 Codes:

    • J90: Pleural effusion, not elsewhere classified

    Also known as:

    • Hardening of the Arteries in the Heart without Chest Pain
    • Atherosclerosis
    • Coronary Artery Disease
    • Silent Coronary Artery Disease
    • Asymptomatic Atherosclerosis

    ICD-10 Codes:

    • I2510: Atherosclerotic heart disease of native coronary artery without angina pectoris

    Also known as:

    • Heart Attack (NSTEMI)
    • Heart Attack
    • Myocardial Infarction
    • Non-STEMI
    • Less Severe Heart Attack

    ICD-10 Codes:

    • I214: Non-ST elevation (NSTEMI) myocardial infarction

    Also known as:

    • Fluid in Abdomen
    • Liver Disease
    • Ascites
    • Abdominal fluid buildup
    • Peritoneal fluid

    ICD-10 Codes:

    • R188: Other ascites

    Also known as:

    • Pneumonia
    • Lung Infection
    • Chest Infection
    • Pneumonitis

    ICD-10 Codes:

    • J189: Pneumonia, unspecified organism

    What procedures does Dr. Ong perform?

    As a Internist, 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.

    Also known as:

    • Belly Fluid Drainage
    • Abdominal Fluid Aspiration
    • Ascites Drainage
    • Peritoneal Fluid Removal

    CPT Codes:

    • 49082: Abdominal paracentesis (diagnostic or therapeutic); without imaging guidance

    Does Dr. Ong accept my insurance?

    Dr. Ong accepts most major insurance plans. Important: Please call our office at (408) 851-1000 before your appointment to verify that your specific plan and network are accepted.

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

    Dr. Ong in Santa Clara, 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

    • Kaiser Permanente

    • Medicare

    • OptumRx

    • State of Tennessee

    View All Insurances

    Where is Dr. Ong's office located?

    Dr. Stephen Ong's Primary Practice

    710 Lawrence Expy

    Santa Clara, CA 95051

    (408) 851-1000

    Get Directions

    Dr. Stephen Ong's Practice 2

    2200 Ofarrell St

    San Francisco, CA 94115

    Get Directions

    Dr. Stephen Ong's Practice 3

    2425 Geary Blvd

    San Francisco, CA 94115

    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 1780750018.

    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. Stephen Ong's specialty?

    Dr. Ong is a Internist near Santa Clara, CA.

    A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

    Contact Dr. Ong to book an appointment today.

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

    Yes, Dr. Ong is affiliated with Kaiser Permanente Santa Clara Medical Center, UCSF Medical Center at Parnassus 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 Internist?

    Explore Internist 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 Stephen Ong accepting new patients in Santa Clara, CA?

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

    Does Dr. Stephen Ong offer online booking?

    Please contact Dr. Ong's office at (408) 851-1000 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Stephen Ong?

    Please contact Dr. Ong's office at (408) 851-1000 for information regarding telehealth appointment availability or for scheduling assistance.

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