
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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- Elite
- Aortic Valve ReplacementDr. Johnston isElite. Learn about Aortic Valve Replacement.
- Constrictive PericarditisDr. Johnston isElite. Learn about Constrictive Pericarditis.
- Distinguished
- Aortic DissectionDr. Johnston isDistinguished. Learn about Aortic Dissection.
- Aortic RegurgitationDr. Johnston isDistinguished. Learn about Aortic Regurgitation.
- Aortic Valve StenosisDr. Johnston isDistinguished. Learn about Aortic Valve Stenosis.
- Bicuspid Aortic ValveDr. Johnston isDistinguished. Learn about Bicuspid Aortic Valve.
- Coronary Artery Bypass Graft (CABG)Dr. Johnston isDistinguished. Learn about Coronary Artery Bypass Graft (CABG).
- Heart Bypass SurgeryDr. Johnston isDistinguished. Learn about Heart Bypass Surgery.
View All 9 Distinguished Conditions
- Advanced
- Atrial MyxomaDr. Johnston isAdvanced. Learn about Atrial Myxoma.
- Cardiac TamponadeDr. Johnston isAdvanced. Learn about Cardiac Tamponade.
- Cystic Medial Necrosis of AortaDr. Johnston isAdvanced. Learn about Cystic Medial Necrosis of Aorta.
- EndocarditisDr. Johnston isAdvanced. Learn about Endocarditis.
- Heart TumorDr. Johnston isAdvanced. Learn about Heart Tumor.
- Experienced
- AdenoidectomyDr. Johnston isExperienced. Learn about Adenoidectomy.
- Adenosine Deaminase 2 DeficiencyDr. Johnston isExperienced. Learn about Adenosine Deaminase 2 Deficiency.
- Aneurysm RepairDr. Johnston isExperienced. Learn about Aneurysm Repair.
- Anomalous Left Coronary Artery from the Pulmonary Artery
- ArachnodactylyDr. Johnston isExperienced. Learn about Arachnodactyly.
- Congenital Coronary Artery MalformationDr. Johnston isExperienced. Learn about Congenital Coronary Artery Malformation.
View All 30 Experienced Conditions
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