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Dr. John Mastrovich, MD

San Antonio, TX

23 Years of Experience

Accepting patients

    Who is Dr. Mastrovich, Allergist & Immunologist in San Antonio, TX?

    Dr. John Mastrovich, MD is an Allergist & Immunologist, who primarily practices in San Antonio, TX. He has been practicing for over 23 years and is board certified by the American Board of Allergy and Immunology and American Board of Internal Medicine. Dr. Mastrovich graduated from Texas Tech University Health Sciences Center School of Medicine and completed his residency at McGaw Med Ctr Of Northwestern, Allergy And Immunology; McGaw Med Ctr Of Northwestern, Internal Medicine. Dr. Mastrovich is fluent in English, and is currently seeing new patients. Dr. Mastrovich’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Mastrovich’s office at (210) 342-6200.

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

    • Residency: McGaw Med Ctr Of Northwestern, Allergy And Immunology; McGaw Med Ctr Of Northwestern, Internal Medicine | McGaw Medical Center of Northwestern University Program

    • Medical School: Tx Tech Univ Hlth Sci Ctr Sch of Med, Lubbock Tx | Texas Tech University Health Sciences Center School of Medicine,Lubbock, Tx, United States | Texas Tech University Health Sciences Center School of Medicine

    Is Dr. Mastrovich board certified in Allergist & Immunologist?

    Yes, Dr. John Mastrovich, MD is board certified by the American Board of Allergy and Immunology , American Board of Internal Medicine

    What languages does Dr. Mastrovich speak?

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

    • English

    What conditions does Dr. Mastrovich treat?

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

    • Allergic Rhinitis
    • Allergy
    • Nasal allergy
    • Chronic allergy symptoms
    • Allergic reactions

    ICD-10 Codes:

    • J3089: Other allergic rhinitis

    Also known as:

    • Asthma
    • Reactive Airway Disease
    • Bronchial Asthma
    • Allergic Asthma

    ICD-10 Codes:

    • J45909: Unspecified asthma, uncomplicated

    Also known as:

    • Food Allergy Rash
    • Food Allergy
    • Rashes
    • Dermatitis from Food
    • Skin Reaction to Ingested Food
    • Food-Induced Eczema

    ICD-10 Codes:

    • L272: Dermatitis due to ingested food

    Also known as:

    • Non-Infectious Gastroenteritis and Colitis
    • Digestive Disease
    • Inflammation of Stomach and Intestines
    • Non-Bacterial Colitis
    • Gut Inflammation

    ICD-10 Codes:

    • K529: Noninfective gastroenteritis and colitis, unspecified

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

    As a Allergist & Immunologist, procedures performed by an Dr. John Mastrovich may include:

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

    Does Dr. Mastrovich accept my insurance?

    Dr. Mastrovich accepts most major insurance plans. Important: Please call our office at (210) 342-6200 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Mastrovich accept in San Antonio, TX?

    Dr. Mastrovich in San Antonio, TX accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • Medicare

    • Premier

    View All Insurances

    Where is Dr. Mastrovich's office located?

    Dr. John Mastrovich's Primary Practice

    20650 Stone Oak Pkwy Ste 106

    San Antonio, TX 78258

    (210) 342-6200

    Get Directions

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

    Dr. Mastrovich's National Provider Identifier (NPI) number is 1740205418.

    What common questions do patients ask about Dr. Mastrovich?

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

    What is Dr. John Mastrovich's specialty?

    Dr. Mastrovich is a Allergist & Immunologist near San Antonio, TX. 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. Mastrovich to book an appointment today.

    Is this Dr. John Mastrovich affiliated with a ranked Castle Connolly Top Hospital?

    No, Mastrovich is not affiliated with a Castle Connolly Top Hospital. Castle Connolly Top Hospitals 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 John Mastrovich accepting new patients in San Antonio, TX?

    Yes, Dr. John Mastrovich is accepting new patients at this time.

    Does Dr. John Mastrovich offer online booking?

    Please contact Dr. Mastrovich's office at (210) 342-6200 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with John Mastrovich?

    Please contact Dr. Mastrovich's office at (210) 342-6200 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. John Mastrovich have?

    Dr. John Mastrovich is certified by the American Board of Allergy and Immunology and American Board of Internal Medicine.

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