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Dr. John Hagan, MD

Rochester, MN

Accepting patients

    Who is Dr. Hagan, Allergist & Immunologist in Rochester, MN?

    Dr. John Hagan, MD is an Allergist & Immunologist, who primarily practices in Rochester, MN. He is board certified by the American Board of Allergy and Immunology and American Board of Internal Medicine. Dr. Hagan graduated from Georgetown University, Washington, DC and completed his residency at Mayo Grad Sch Med/Mayo Fndn, Critical Care Medicine-Internal Medicine; Mayo Grad Sch Med/Mayo Fndn, Allergy And Immunology; Mayo Grad Sch Med/Mayo Fndn, Internal Medicine. Dr. Hagan is fluent in English, and is currently seeing new patients. Dr. Hagan’s practice accepts Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Hagan’s office at (507) 284-2511.

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

    • Residency: Mayo Grad Sch Med/Mayo Fndn, Critical Care Medicine-Internal Medicine; Mayo Grad Sch Med/Mayo Fndn, Allergy And Immunology; Mayo Grad Sch Med/Mayo Fndn, Internal Medicine | Mayo Clinic College of Medicine (Arizona) Program

    • Medical School: University of Tn, Memphis, Coll of Med, Memphis Tn | Georgetown University, Washington, DC

    Is Dr. Hagan board certified in Allergist & Immunologist?

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

    What languages does Dr. Hagan speak?

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

    • English

    What conditions does Dr. Hagan treat?

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

    • Severe Persistent Asthma
    • Moderate Persistent Asthma
    • Mild Persistent Asthma
    • Asthma
    • Mild Intermittent Asthma
    • Chronic Severe Asthma
    • Difficult-to-Treat Asthma
    • Severe Asthma
    • Ongoing Moderate Asthma
    • Regular Moderate Asthma
    • Chronic Moderate Asthma
    • Ongoing Mild Asthma
    • Regular Mild Asthma
    • Chronic Mild Asthma
    • Reactive Airway Disease
    • Bronchial Asthma
    • Allergic Asthma
    • Occasional Asthma
    • Mild Asthma Attacks
    • Infrequent Asthma

    ICD-10 Codes:

    • J4550: Severe persistent asthma, uncomplicated
    • J4540: Moderate persistent asthma, uncomplicated
    • J4530: Mild persistent asthma, uncomplicated
    • J45909: Unspecified asthma, uncomplicated
    • J4520: Mild intermittent asthma, uncomplicated

    Also known as:

    • Allergic Rhinitis
    • Allergy
    • Nasal allergies
    • Allergy rhinitis
    • Chronic runny nose

    ICD-10 Codes:

    • J309: Allergic rhinitis, unspecified

    Also known as:

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

    ICD-10 Codes:

    • J328: Other chronic sinusitis
    • J329: Chronic sinusitis, unspecified

    Also known as:

    • Penicillin allergy
    • Unspecified drug allergy
    • Antibiotics
    • Drug Reactions
    • Penicillin hypersensitivity
    • Adverse reaction to penicillin
    • Allergy to unknown medication
    • Drug hypersensitivity
    • Adverse reaction to medication

    ICD-10 Codes:

    • Z880: Allergy status to penicillin
    • Z889: Allergy status to unspecified drugs, medicaments and biological substances

    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:

    • 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:

    • Chronic Cough
    • Cough
    • Persistent cough
    • Long-lasting cough
    • Ongoing cough

    ICD-10 Codes:

    • R053: Chronic cough

    Also known as:

    • Other Allergy
    • Allergic Rhinitis
    • Allergy
    • Unspecified Allergy
    • Allergic Reaction
    • Nasal allergy
    • Chronic allergy symptoms
    • Allergic reactions

    ICD-10 Codes:

    • T7849XD: Other allergy, subsequent encounter
    • J3089: Other allergic rhinitis

    Also known as:

    • Other Types of Hives
    • Hives
    • Atypical hives
    • Uncommon urticaria
    • Variant hives

    ICD-10 Codes:

    • L508: Other urticaria

    Also known as:

    • Non-Hereditary Low Immunoglobulin Levels
    • Immune System and Disorder
    • Acquired Antibody Deficiency
    • Non-Genetic Immune Deficiency

    ICD-10 Codes:

    • D801: Nonfamilial hypogammaglobulinemia

    Also known as:

    • Postnasal Drip
    • Sinusitis
    • PND
    • Mucus in throat
    • Throat clearing

    ICD-10 Codes:

    • R0982: Postnasal drip

    Also known as:

    • Other Specified Lung Disorder
    • Other Breathing Conditions
    • Miscellaneous Respiratory Diseases
    • Specific Lung Problems

    ICD-10 Codes:

    • J988: Other specified respiratory disorders

    Also known as:

    • History of Other Specified Condition
    • Past medical conditions
    • Previous health issues
    • History of other diagnoses

    ICD-10 Codes:

    • Z87898: Personal history of other specified conditions

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

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

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

    Does Dr. Hagan accept my insurance?

    Dr. Hagan accepts most major insurance plans. Important: Please call our office at (507) 284-2511 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Hagan accept in Rochester, MN?

    Dr. Hagan in Rochester, MN 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 Cross and Blue Shield of Minnesota

    • Blue Cross Blue Shield of Michigan

    • CVS Health (formerly Aetna)

    • Department of Defense / Tricare

    • Express Scripts

    • Medica

    • Medicare

    • UnitedHealthcare

    • Wellmark BlueCross BlueShield

    View All Insurances

    Where is Dr. Hagan's office located?

    Dr. John Hagan's Primary Practice

    200 1st St SW

    Rochester, MN 55905

    (507) 284-2511

    Get Directions

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

    Dr. Hagan's National Provider Identifier (NPI) number is 1366429573.

    What common questions do patients ask about Dr. Hagan?

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

    What is Dr. John Hagan's specialty?

    Dr. Hagan is a Allergist & Immunologist near Rochester, MN. 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. Hagan to book an appointment today.

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

    No, Hagan 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 Hagan accepting new patients in Rochester, MN?

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

    Does Dr. John Hagan offer online booking?

    Please contact Dr. Hagan's office at (507) 284-2511 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with John Hagan?

    Please contact Dr. Hagan's office at (507) 284-2511 for information regarding telehealth appointment availability or for scheduling assistance.

    Which board certifications does Dr. John Hagan have?

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

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