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Dr. Joseph Hernandez, MD, PHD

Palo Alto, CA

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Hernandez, Allergist & Immunologist in Palo Alto, CA?

    Dr. Joseph Hernandez, MD, PHD is an Allergist & Immunologist, who primarily practices in Palo Alto, CA with 2 additional practice locations. He is board certified. Dr. Hernandez is fluent in English and Spanish, and is currently seeing new patients. Dr. Hernandez’s practice accepts Cigna, Kaiser Permanente, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Hernandez’s office at (650) 497-8000.

    What languages does Dr. Hernandez speak?

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

    • English

    • Spanish

    What conditions does Dr. Hernandez treat?

    As a Allergist & Immunologist, Dr. Hernandez 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. Hernandez. 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:

    • Other Food Allergy
    • Peanut Allergy
    • Egg Allergy
    • Food Allergy
    • Unspecified Food Allergy
    • Multiple Food Allergies
    • Food Hypersensitivity
    • Peanut Hypersensitivity
    • Groundnut Allergy
    • Allergic Reaction to Peanuts
    • Egg protein allergy
    • Allergy to eggs
    • Ovoallergy

    ICD-10 Codes:

    • Z91018: Allergy to other foods
    • Z91010: Allergy to peanuts
    • Z91012: Allergy to eggs

    Also known as:

    • Allergic Rhinitis
    • Hay Fever
    • Allergy
    • Nasal allergies
    • Allergy rhinitis
    • Chronic runny nose
    • Pollen allergy
    • Seasonal allergies
    • Allergic rhinitis

    ICD-10 Codes:

    • J309: Allergic rhinitis, unspecified
    • J301: Allergic rhinitis due to pollen

    Also known as:

    • Chronic Rhinitis
    • Nose Injuries and Disorder
    • Chronic runny nose
    • Persistent nasal inflammation
    • Long-term stuffy nose

    ICD-10 Codes:

    • J310: Chronic rhinitis

    Also known as:

    • Allergic Rhinitis
    • Seasonal Allergies
    • Other Non-Drug Allergy
    • Allergy
    • Nasal allergy
    • Chronic allergy symptoms
    • Allergic reactions
    • Hay fever
    • Seasonal allergic rhinitis
    • Pollen allergy
    • Unspecified allergy
    • Environmental allergy
    • Allergy to other substances

    ICD-10 Codes:

    • J3089: Other allergic rhinitis
    • J302: Other seasonal allergic rhinitis
    • Z9109: Other allergy status, other than to drugs and biological substances

    Also known as:

    • Mild Persistent Asthma
    • Moderate Persistent Asthma
    • Mild Intermittent Asthma
    • Asthma
    • Ongoing Mild Asthma
    • Regular Mild Asthma
    • Chronic Mild Asthma
    • Ongoing Moderate Asthma
    • Regular Moderate Asthma
    • Chronic Moderate Asthma
    • Occasional Asthma
    • Mild Asthma Attacks
    • Infrequent Asthma

    ICD-10 Codes:

    • J4530: Mild persistent asthma, uncomplicated
    • J4540: Moderate persistent asthma, uncomplicated
    • J4520: Mild intermittent asthma, uncomplicated

    Also known as:

    • Atopic Dermatitis
    • Eczema
    • Atopic dermatitis
    • Itchy skin rash
    • Allergic skin condition

    ICD-10 Codes:

    • L209: Atopic dermatitis, unspecified

    Also known as:

    • Hereditary Low Immunoglobulin Levels
    • Non-Hereditary Low Immunoglobulin Levels
    • Immune System and Disorder
    • Isolated growth hormone deficiency
    • X-linked agammaglobulinemia
    • Genetic Antibody Deficiency
    • Inherited Immune Deficiency
    • X-linked Agammaglobulinemia
    • Acquired Antibody Deficiency
    • Non-Genetic Immune Deficiency

    ICD-10 Codes:

    • D800: Hereditary hypogammaglobulinemia
    • D801: Nonfamilial hypogammaglobulinemia

    Also known as:

    • Other Types of Hives
    • Chronic Hives
    • Hives
    • Atypical hives
    • Uncommon urticaria
    • Variant hives
    • Hives of unknown cause
    • Spontaneous urticaria
    • Persistent welts

    ICD-10 Codes:

    • L508: Other urticaria
    • L501: Idiopathic urticaria

    Also known as:

    • Stuffy Nose
    • Nose Injuries and Disorder
    • Blocked nose
    • Nasal congestion
    • Congested nose

    ICD-10 Codes:

    • R0981: Nasal congestion

    Also known as:

    • Common Variable Immunodeficiency (CVID)
    • Immune System and Disorder
    • Common variable immune deficiency
    • CVID
    • Acquired Hypogammaglobulinemia

    ICD-10 Codes:

    • D839: Common variable immunodeficiency, unspecified

    Also known as:

    • Infectious Disease
    • Infection
    • Contagious Illness
    • Communicable disease

    ICD-10 Codes:

    • B999: Unspecified infectious disease

    Which procedures does Dr. Hernandez perform as a Allergist & Immunologist?

    As a Allergist & Immunologist, procedures performed by an Dr. Joseph Hernandez may include:

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

    Does Dr. Hernandez accept my insurance?

    Dr. Hernandez accepts most major insurance plans. Important: Please call our office at (650) 497-8000 before your appointment to verify that your specific plan and network are accepted.

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

    Dr. Hernandez in Palo Alto, 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

    • Blue Shield of California

    • Central California Alliance for Health

    • CVS Health (formerly Aetna)

    • Express Scripts

    • Health Plan of San Mateo

    • North East Medical Services

    • Other Health Care Provider

    • Santa Clara Family Health Plan

    • UnitedHealthcare

    View All Insurances

    Where is Dr. Hernandez's office located?

    Dr. Joseph Hernandez's Primary Practice

    725 Welch Rd

    Palo Alto, CA 94304

    (650) 497-8000

    Get Directions

    Dr. Joseph Hernandez's Practice 2

    269 Campus Dr # Aly

    Stanford, CA 94305

    Get Directions

    Dr. Joseph Hernandez's Practice 3

    300 Pasteur Dr

    Stanford, CA 94305

    Get Directions

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

    Dr. Hernandez's National Provider Identifier (NPI) number is 1104052232.

    What common questions do patients ask about Dr. Hernandez?

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

    What is Dr. Joseph Hernandez's specialty?

    Dr. Hernandez is a Allergist & Immunologist near Palo Alto, CA. An allergist-immunologist is well-versed in the assessment, physical examination, laboratory diagnosis, and treatment of immune system disorders. These conditions include, but are not limited to, eczema, asthma, anaphylaxis, rhinitis, and adverse reactions to food, medication, and insect stings. Furthermore, they manage immune deficiency diseases, whether acquired or congenital, issues with host defense, and challenges associated with autoimmune diseases, organ transplantation, or immune system malignancies. Contact Dr. Hernandez to book an appointment today.

    Is this Dr. Joseph Hernandez affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Hernandez is affiliated with California Pacific Medical Center - Van Ness Campus, Stanford Health Care - Stanford Hospital 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 Allergist & Immunologist?

    Explore Allergist & Immunologist 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 Joseph Hernandez accepting new patients in Palo Alto, CA?

    Yes, Dr. Joseph Hernandez is accepting new patients at this time.

    Does Dr. Joseph Hernandez offer online booking?

    Please contact Dr. Hernandez's office at (650) 497-8000 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Joseph Hernandez?

    Please contact Dr. Hernandez's office at (650) 497-8000 for information regarding telehealth appointment availability or for scheduling assistance.

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