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
- Desmoplastic Small Round Cell TumorDr. Johnston isDistinguished. Learn about Desmoplastic Small Round Cell Tumor.
- Stomach CancerDr. Johnston isDistinguished. Learn about Stomach Cancer.
- Advanced
- Adult Soft Tissue SarcomaDr. Johnston isAdvanced. Learn about Adult Soft Tissue Sarcoma.
- Alveolar Soft Part SarcomaDr. Johnston isAdvanced. Learn about Alveolar Soft Part Sarcoma.
- Ampullary CancerDr. Johnston isAdvanced. Learn about Ampullary Cancer.
- Cholangiocarcinoma (Bile Duct Cancer)Dr. Johnston isAdvanced. Learn about Cholangiocarcinoma (Bile Duct Cancer).
- Colorectal CancerDr. Johnston isAdvanced. Learn about Colorectal Cancer.
- Epithelioid SarcomaDr. Johnston isAdvanced. Learn about Epithelioid Sarcoma.
View All 25 Advanced Conditions
- Experienced
- Adrenocortical CarcinomaDr. Johnston isExperienced. Learn about Adrenocortical Carcinoma.
- AppendectomyDr. Johnston isExperienced. Learn about Appendectomy.
- Bile Duct StrictureDr. Johnston isExperienced. Learn about Bile Duct Stricture.
- Bladder ReconstructionDr. Johnston isExperienced. Learn about Bladder Reconstruction.
- Bone TumorDr. Johnston isExperienced. Learn about Bone Tumor.
- Childhood PancreatitisDr. Johnston isExperienced. Learn about Childhood Pancreatitis.
View All 34 Experienced Conditions
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