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Dr. Jonathan Chao, MD

Dr. Jonathan Chao, MD

Palo Alto, CA

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Chao, Internist in Palo Alto, CA?

    Dr. Jonathan Chao, MD is an Internist, who primarily practices in Palo Alto, CA with 1 additional practice location. He is board certified. Dr. Chao graduated from Sidney Kimmel Medical College at Thomas Jefferson University and completed his residency at Thomas Jefferson University Hospital Program. Dr. Chao is fluent in English and Chinese, and is currently seeing new patients. Dr. Chao’s practice accepts Cigna, Kaiser Permanente, Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Chao’s office at (650) 321-4121.

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

    • Residency: Thomas Jefferson University Hospital Program

    • Medical School: Sidney Kimmel Medical College at Thomas Jefferson University

    What languages does Dr. Chao speak?

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

    • Chinese

    • English

    What conditions does Dr. Chao treat?

    As a Internist, 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.

    Also known as:

    • Routine Adult Health Checkup
    • Health Checkup
    • Adult physical exam
    • Annual wellness visit for adults
    • General adult medical exam

    ICD-10 Codes:

    • Z0000: Encounter for general adult medical examination without abnormal findings

    Also known as:

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

    ICD-10 Codes:

    • Z23: Encounter for immunization

    Also known as:

    • High Blood Pressure
    • Hypertension
    • Primary Hypertension
    • Essential Hypertension

    ICD-10 Codes:

    • I10: Essential (primary) hypertension

    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:

    • Adult Health Checkup with Abnormal Findings
    • Health Checkup
    • Adult Physical Exam with Issues
    • Routine Checkup with Concerns
    • General Medical Exam with Abnormal Results

    ICD-10 Codes:

    • Z0001: Encounter for general adult medical examination with abnormal findings

    Also known as:

    • Mixed High Cholesterol and Triglycerides
    • Cholesterol
    • Triglycerides
    • Mixed hyperlipidemia
    • Combined hyperlipidemia
    • High lipids

    ICD-10 Codes:

    • E782: Mixed hyperlipidemia

    Also known as:

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

    ICD-10 Codes:

    • E785: Hyperlipidemia, unspecified

    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:

    • Low Back Pain
    • Back Pain
    • Lumbago
    • Lower Back Ache
    • Backache

    ICD-10 Codes:

    • M5450: Low back pain, unspecified

    Also known as:

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

    ICD-10 Codes:

    • J069: Acute upper respiratory infection, 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:

    • Age-Related Osteoporosis
    • Fractures
    • Osteoporosis
    • Senile Osteoporosis
    • Primary Osteoporosis
    • Bone Thinning from Aging

    ICD-10 Codes:

    • M810: Age-related osteoporosis without current pathological fracture

    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:

    • Skin Disorder
    • Skin Condition
    • Skin Problem
    • Dermatological Condition
    • Skin Ailment

    ICD-10 Codes:

    • L989: Disorder of the skin and subcutaneous tissue, unspecified

    Also known as:

    • Other Pre-Procedure Examination
    • Various pre-op checks
    • Miscellaneous pre-surgery exams
    • Other pre-treatment assessments

    ICD-10 Codes:

    • Z01818: Encounter for other preprocedural examination

    Also known as:

    • Mammogram for Breast Cancer Screening
    • Health Screening
    • Mammography
    • Breast Cancer Screening (PDQ®)
    • Mammograms
    • Breast X-ray
    • Breast Cancer Check

    ICD-10 Codes:

    • Z1231: Encounter for screening mammogram for malignant neoplasm of breast

    Also known as:

    • Carpal Tunnel Syndrome
    • Median Nerve Compression
    • Wrist Nerve Entrapment

    ICD-10 Codes:

    • G5603: Carpal tunnel syndrome, bilateral upper limbs

    Which procedures does Dr. Chao perform as a Internist?

    As a Internist, procedures performed by an Dr. Jonathan Chao may include:

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

    Does Dr. Chao accept my insurance?

    Dr. Chao accepts most major insurance plans. Important: Please call our office at (650) 321-4121 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Chao accept in Palo Alto, CA?

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

    Top Insurances

    • Alignment Health Plan

    • Centene

    • Corporate Services

    • CVS Health (formerly Aetna)

    • Elevance Health Inc. (formerly Anthem)

    • Health Plan of San Mateo

    • Medicare

    • Santa Clara Family Health Plan

    • UnitedHealthcare

    • Valley Health Plan

    View All Insurances

    Where is Dr. Chao's office located?

    Dr. Jonathan Chao's Primary Practice

    795 El Camino Real

    Palo Alto, CA 94301

    (650) 321-4121

    Get Directions

    Dr. Jonathan Chao's Practice 2

    3200 Kearney St

    Fremont, CA 94538

    Get Directions

    What is Dr. Chao's NPI number?An 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 1154611416.

    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. Jonathan Chao's specialty?

    Dr. Chao is a Internist near Palo Alto, 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. Chao to book an appointment today.

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

    Yes, Dr. Chao is affiliated with Mills-Peninsula Medical Center which is a Castle Connolly Top Hospital. 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 Jonathan Chao accepting new patients in Palo Alto, CA?

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

    Does Dr. Jonathan Chao offer online booking?

    Please contact Dr. Chao's office at (650) 321-4121 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Jonathan Chao?

    Please contact Dr. Chao's office at (650) 321-4121 for information regarding telehealth appointment availability or for scheduling assistance.

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