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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- Distinguished
- CirrhosisDr. Johnston isDistinguished. Learn about Cirrhosis.
- Gallbladder DiseaseDr. Johnston isDistinguished. Learn about Gallbladder Disease.
- MelorheostosisDr. Johnston isDistinguished. Learn about Melorheostosis.
- Melorheostosis with OsteopoikilosisDr. Johnston isDistinguished. Learn about Melorheostosis with Osteopoikilosis.
- Non-Alcoholic Fatty Liver DiseaseDr. Johnston isDistinguished. Learn about Non-Alcoholic Fatty Liver Disease.
- OsteopeniaDr. Johnston isDistinguished. Learn about Osteopenia.
View All 7 Distinguished Conditions
- Advanced
- Aicardi-Goutieres SyndromeDr. Johnston isAdvanced. Learn about Aicardi-Goutieres Syndrome.
- AngiomyomaDr. Johnston isAdvanced. Learn about Angiomyoma.
- ArrhiniaDr. Johnston isAdvanced. Learn about Arrhinia.
- AscitesDr. Johnston isAdvanced. Learn about Ascites.
- Baker CystDr. Johnston isAdvanced. Learn about Baker Cyst.
- Blau SyndromeDr. Johnston isAdvanced. Learn about Blau Syndrome.
View All 52 Advanced Conditions
- Experienced
- Aberrant Subclavian ArteryDr. Johnston isExperienced. Learn about Aberrant Subclavian Artery.
- Accessory Deep Peroneal NerveDr. Johnston isExperienced. Learn about Accessory Deep Peroneal Nerve.
- Alcoholic CirrhosisDr. Johnston isExperienced. Learn about Alcoholic Cirrhosis.
- ALK-Positive Non-Small Cell Lung CancerDr. Johnston isExperienced. Learn about ALK-Positive Non-Small Cell Lung Cancer.
- Anaplastic Thyroid CancerDr. Johnston isExperienced. Learn about Anaplastic Thyroid Cancer.
- AppendicitisDr. Johnston isExperienced. Learn about Appendicitis.
View All 131 Experienced Conditions
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