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. Callahan's expertise for a condition
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- Distinguished
- Acute Interstitial PneumoniaDr. Callahan isDistinguished. Learn about Acute Interstitial Pneumonia.
- BronchiectasisDr. Callahan isDistinguished. Learn about Bronchiectasis.
- BullaeDr. Callahan isDistinguished. Learn about Bullae.
- Chronic Obstructive Pulmonary Disease (COPD)Dr. Callahan isDistinguished. Learn about Chronic Obstructive Pulmonary Disease (COPD).
- EmphysemaDr. Callahan isDistinguished. Learn about Emphysema.
- Lung MetastasesDr. Callahan isDistinguished. Learn about Lung Metastases.
View All 7 Distinguished Conditions
- Advanced
- AsthmaDr. Callahan isAdvanced. Learn about Asthma.
- Asthma in ChildrenDr. Callahan isAdvanced. Learn about Asthma in Children.
- Chronic CoughDr. Callahan isAdvanced. Learn about Chronic Cough.
- Chronic Eosinophilic PneumoniaDr. Callahan isAdvanced. Learn about Chronic Eosinophilic Pneumonia.
- EmpyemaDr. Callahan isAdvanced. Learn about Empyema.
- Eosinophilic PneumoniaDr. Callahan isAdvanced. Learn about Eosinophilic Pneumonia.
View All 19 Advanced Conditions
- Experienced
- Acute Respiratory Distress Syndrome (ARDS)Dr. Callahan isExperienced. Learn about Acute Respiratory Distress Syndrome (ARDS).
- ALK-Positive Non-Small Cell Lung CancerDr. Callahan isExperienced. Learn about ALK-Positive Non-Small Cell Lung Cancer.
- Alpha-1 Antitrypsin Deficiency (AATD)Dr. Callahan isExperienced. Learn about Alpha-1 Antitrypsin Deficiency (AATD).
- Atypical PneumoniaDr. Callahan isExperienced. Learn about Atypical Pneumonia.
- Bronchiolitis ObliteransDr. Callahan isExperienced. Learn about Bronchiolitis Obliterans.
- BronchitisDr. Callahan isExperienced. Learn about Bronchitis.
View All 36 Experienced Conditions
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