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. Johnston's expertise for a condition
ConditionClose
- Advanced
- Lung CancerDr. Johnston isAdvanced. Learn about Lung Cancer.
- Lymphofollicular HyperplasiaDr. Johnston isAdvanced. Learn about Lymphofollicular Hyperplasia.
- Non-Small Cell Lung Cancer (NSCLC)Dr. Johnston isAdvanced. Learn about Non-Small Cell Lung Cancer (NSCLC).
- PineoblastomaDr. Johnston isAdvanced. Learn about Pineoblastoma.
- Small Cell Lung Cancer (SCLC)Dr. Johnston isAdvanced. Learn about Small Cell Lung Cancer (SCLC).
- Experienced
- ALK-Positive Non-Small Cell Lung CancerDr. Johnston isExperienced. Learn about ALK-Positive Non-Small Cell Lung Cancer.
- Alveolar Soft Part SarcomaDr. Johnston isExperienced. Learn about Alveolar Soft Part Sarcoma.
- Bile Duct ObstructionDr. Johnston isExperienced. Learn about Bile Duct Obstruction.
- Bladder CancerDr. Johnston isExperienced. Learn about Bladder Cancer.
- BronchiectasisDr. Johnston isExperienced. Learn about Bronchiectasis.
- CholestasisDr. Johnston isExperienced. Learn about Cholestasis.
View All 35 Experienced Conditions
Want to save this doctor for later?
Is this your doctor?
Not sure about your diagnosis?
Are you the provider on this profile?