Areas of Expertise
MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.
Learn more about MediFind’s expert tiers
Find Dr. Hagan's expertise for a condition
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- Advanced
- AnaphylaxisDr. Hagan isAdvanced. Learn about Anaphylaxis.
- AsthmaDr. Hagan isAdvanced. Learn about Asthma.
- Chronic Rhinosinusitis with Nasal Polyps (CRSwNP)
- Nasal PolypsDr. Hagan isAdvanced. Learn about Nasal Polyps.
- Primary Immunodeficiency (PID)Dr. Hagan isAdvanced. Learn about Primary Immunodeficiency (PID).
- SinusitisDr. Hagan isAdvanced. Learn about Sinusitis.
- Experienced
- Allergic RhinitisDr. Hagan isExperienced. Learn about Allergic Rhinitis.
- Asthma in ChildrenDr. Hagan isExperienced. Learn about Asthma in Children.
- Chronic Spontaneous Urticaria (CSU)Dr. Hagan isExperienced. Learn about Chronic Spontaneous Urticaria (CSU).
- Cold UrticariaDr. Hagan isExperienced. Learn about Cold Urticaria.
- Common Variable Immune DeficiencyDr. Hagan isExperienced. Learn about Common Variable Immune Deficiency.
- Grass AllergyDr. Hagan isExperienced. Learn about Grass Allergy.
View All 16 Experienced Conditions
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