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
- Endometrial CancerDr. Johnston isDistinguished. Learn about Endometrial Cancer.
- Endometrial Stromal SarcomaDr. Johnston isDistinguished. Learn about Endometrial Stromal Sarcoma.
- Malignant Mixed Mullerian TumorDr. Johnston isDistinguished. Learn about Malignant Mixed Mullerian Tumor.
- Ovarian CancerDr. Johnston isDistinguished. Learn about Ovarian Cancer.
- Sertoli-Leydig Cell TumorDr. Johnston isDistinguished. Learn about Sertoli-Leydig Cell Tumor.
- Testicular Yolk Sac TumorDr. Johnston isDistinguished. Learn about Testicular Yolk Sac Tumor.
View All 7 Distinguished Conditions
- Advanced
- Cervical CancerDr. Johnston isAdvanced. Learn about Cervical Cancer.
- Desmoplastic Small Round Cell TumorDr. Johnston isAdvanced. Learn about Desmoplastic Small Round Cell Tumor.
- Eccrine PorocarcinomaDr. Johnston isAdvanced. Learn about Eccrine Porocarcinoma.
- Neuroendocrine Carcinoma of the Cervix
- Ovarian CarcinosarcomaDr. Johnston isAdvanced. Learn about Ovarian Carcinosarcoma.
- Virilizing Ovarian TumorDr. Johnston isAdvanced. Learn about Virilizing Ovarian Tumor.
- Experienced
- Adult Soft Tissue SarcomaDr. Johnston isExperienced. Learn about Adult Soft Tissue Sarcoma.
- AgranulocytosisDr. Johnston isExperienced. Learn about Agranulocytosis.
- Chronic Familial NeutropeniaDr. Johnston isExperienced. Learn about Chronic Familial Neutropenia.
- Lump in the AbdomenDr. Johnston isExperienced. Learn about Lump in the Abdomen.
- MelanomaDr. Johnston isExperienced. Learn about Melanoma.
- Neonatal Ovarian CystDr. Johnston isExperienced. Learn about Neonatal Ovarian Cyst.
View All 10 Experienced Conditions
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