Affiliated with a Castle Connolly Top Hospital
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. 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 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 as an 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 an Allergist & Immunologist like Dr. Hagan typically treat?
As an 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. Learn more about our claims-based healthcare methodology here.
Also known as:
- Allergic Rhinitis
- Allergy
- Nasal allergies
- Allergy rhinitis
- Chronic runny nose
ICD-10 Codes:
- J309: Allergic rhinitis, unspecified
Also known as:
- Severe Persistent Asthma
- Moderate Persistent Asthma
- Asthma
- Chronic Severe Asthma
- Difficult-to-Treat Asthma
- Severe Asthma
- Ongoing Moderate Asthma
- Regular Moderate Asthma
- Chronic Moderate Asthma
ICD-10 Codes:
- J4550: Severe persistent asthma, uncomplicated
- J4540: Moderate persistent asthma, uncomplicated
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:
- Penicillin allergy
- Antibiotics
- Drug Reactions
- Penicillin hypersensitivity
- Adverse reaction to penicillin
ICD-10 Codes:
- Z880: Allergy status to penicillin
Also known as:
- Chronic Sinusitis
- Sinusitis
- Chronic sinus infection
- Long-term sinus problems
- Persistent sinus inflammation
- Rhinosinusitis
ICD-10 Codes:
- J329: Chronic sinusitis, unspecified
- J328: Other chronic sinusitis
Also known as:
- Chronic Cough
- Cough
- Persistent cough
- Long-lasting cough
- Ongoing cough
ICD-10 Codes:
- R053: Chronic cough
What procedures does an Allergist & Immunologist like Dr. Hagan typically perform?
As an Allergist & Immunologist, Dr. Hagan performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed 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. Learn more about our claims-based healthcare methodology here.
Also known as:
- Flexible Diagnostic Laryngoscopy
- Voice Box Exam
- Flexible Laryngoscope
- Throat Scope
- Diagnostic Throat Exam
CPT Codes:
- 31575: Laryngoscopy, flexible; diagnostic
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 Blue Shield of Kansas
Blue Cross Blue Shield of Michigan
Blue Cross Blue Shield of North Dakota
Cigna Group
CVS Health (formerly Aetna)
Federal government of the United States
Medica Group
Medicare
UnitedHealth Group
View All Insurances
Where is Dr. Hagan's office located?
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.
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. John Hagan affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Hagan is affiliated with Mayo Clinic Health System In La Crosse 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
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 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.
<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>