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
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- Advanced
- Lymphofollicular HyperplasiaDr. Johnston isAdvanced. Learn about Lymphofollicular Hyperplasia.
- Experienced
- Alopecia AreataDr. Johnston isExperienced. Learn about Alopecia Areata.
- Atypical PneumoniaDr. Johnston isExperienced. Learn about Atypical Pneumonia.
- Autosomal Recessive HypotrichosisDr. Johnston isExperienced. Learn about Autosomal Recessive Hypotrichosis.
- Benign Paroxysmal Positional VertigoDr. Johnston isExperienced. Learn about Benign Paroxysmal Positional Vertigo.
- Bowel IncontinenceDr. Johnston isExperienced. Learn about Bowel Incontinence.
- CellulitisDr. Johnston isExperienced. Learn about Cellulitis.
View All 84 Experienced Conditions
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