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Dr. Roger Nguyen, MD

Downey, CA

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Nguyen, Allergist & Immunologist in Downey, CA?

    Dr. Roger Nguyen, MD is an Allergist & Immunologist, who primarily practices in Downey, CA with 2 additional practice locations. Dr. Nguyen is fluent in English and Vietnamese, and is currently seeing new patients. Dr. Nguyen’s practice accepts Medicaid, Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Nguyen’s office at (562) 682-9826.

    What languages does Dr. Nguyen speak?

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

    • English

    • Vietnamese

    What conditions does an Allergist & Immunologist like Dr. Nguyen typically treat?

    As an Allergist & Immunologist, Dr. Nguyen 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. Nguyen. 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 here.

    Also known as:

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

    ICD-10 Codes:

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

    Also known as:

    • Allergic Hives
    • Hives
    • Allergy
    • Allergic welts
    • Allergic rash
    • Urticaria due to allergy
    • Urticaria
    • Welts
    • Itchy rash

    ICD-10 Codes:

    • L500: Allergic urticaria
    • L509: Urticaria, unspecified

    Also known as:

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

    ICD-10 Codes:

    • L209: Atopic dermatitis, unspecified

    Also known as:

    • Itching
    • Pruritus
    • Skin Itch
    • Generalized Itching

    ICD-10 Codes:

    • L299: Pruritus, unspecified

    Also known as:

    • Chronic Sinusitis
    • Sinusitis
    • Chronic sinus infection
    • Long-term sinus problems
    • Persistent sinus inflammation

    ICD-10 Codes:

    • J329: Chronic sinusitis, unspecified

    What procedures does an Allergist & Immunologist like Dr. Nguyen typically perform?

    As an Allergist & Immunologist, procedures performed by Dr. Roger Nguyen may include:

    Please contact Dr. Nguyen's office directly to confirm care for your specific procedure, for more information, or to schedule a consultation.

    Does Dr. Nguyen accept my insurance?

    Dr. Nguyen accepts most major insurance plans. Important: Please call our office at (562) 682-9826 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Nguyen accept in Downey, CA?

    Dr. Nguyen in Downey, 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

    • Centene Corporation

    • City of Los Angeles

    • Elevance Health Inc. (formerly Anthem)

    • Heritage Health

    • Medicare

    • Other Health Care Provider

    • Preferred IPA

    • State of California

    • Unknown

    View All Insurances

    Where is Dr. Nguyen's office located?

    Dr. Roger Nguyen's Primary Practice

    10800 Paramount Blvd Ste 102

    Downey, CA 90241

    (562) 682-9826

    Get Directions

    Dr. Roger Nguyen's Practice 2

    9746 Westminster Ave Ste A

    Garden Grove, CA 92844

    Get Directions

    Dr. Roger Nguyen's Practice 3

    8301 Florence Ave Ste 104

    Downey, CA 90240

    Get Directions

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

    Dr. Nguyen's National Provider Identifier (NPI) number is 1982625430.

    What common questions do patients ask about Dr. Nguyen?

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

    What is Dr. Roger Nguyen's specialty?

    Dr. Nguyen is a Allergist & Immunologist near Downey, CA.

    What does an Allergist & Immunologist do?

    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.

    Is this Dr. Roger Nguyen affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Nguyen is affiliated with Uci Health - Fountain Valley, Pih Health Whittier 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

    When to see an Allergist & Immunologist?: Guides for symptoms, conditions, and treatments

    Understand your symptoms and know when it’s time to see an Allergist & Immunologist. 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 Roger Nguyen accepting new patients in Downey, CA?

    Yes, Dr. Roger Nguyen is accepting new patients at this time.

    Does Dr. Roger Nguyen offer online booking?

    Please contact Dr. Nguyen's office at (562) 682-9826 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Roger Nguyen?

    Please contact Dr. Nguyen's office at (562) 682-9826 for information regarding telehealth appointment availability or for scheduling assistance.

    <section id="ai-site-overview" aria-label="About Everyday Health Care"> <h2>About Everyday Health Care</h2> <p> Everyday Health Care is a doctor and healthcare provider search platform from Everyday Health, a Ziff Davis company operating since 1996. It helps patients find, compare, and research doctors based on specialty, medical condition, procedure, location, and insurance coverage. </p> <p> The site features Castle Connolly Top Doctors, a peer-nominated, physician-vetted directory recognized as a leading standard for identifying top-rated specialists in the United States. Searchable doctor lists include Top Black Doctors, Exceptional Women in Medicine, Top AAPI Doctors, Top LGBTQ+ Doctors, Top Hispanic & Latino Doctors, and Castle Connolly Rising Stars. </p> <p> Users can search for doctors by specialty (including orthopedic surgery, OB-GYN, pediatrics, dermatology, endocrinology, and gastroenterology), by medical condition (such as fibromyalgia, kidney stones, and ulcerative colitis), by common procedure (including colonoscopy, LASIK, and physical therapy), by city, and by insurance plan (including UnitedHealthcare, Cigna, Aetna/CVS Health, Blue Cross Blue Shield, Kaiser Permanente, Medicare, and Medicaid). </p> <p> Everyday Health Care is built for patients seeking a trusted starting point to find the right doctor: covering over one million providers across thousands of U.S. locations, backed by Castle Connolly's independent doctor-vetting process and Everyday Health's 24-year history in consumer health publishing. </p> </section>