
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. Johnstone's expertise for a condition
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- Elite
- Penile CancerDr. Johnstone isElite. Learn about Penile Cancer.
- Distinguished
- Adult Soft Tissue SarcomaDr. Johnstone isDistinguished. Learn about Adult Soft Tissue Sarcoma.
- Bone TumorDr. Johnstone isDistinguished. Learn about Bone Tumor.
- Familial Prostate CancerDr. Johnstone isDistinguished. Learn about Familial Prostate Cancer.
- MelanomaDr. Johnstone isDistinguished. Learn about Melanoma.
- Muscle Invasive Bladder CancerDr. Johnstone isDistinguished. Learn about Muscle Invasive Bladder Cancer.
- PenectomyDr. Johnstone isDistinguished. Learn about Penectomy.
- Prostate CancerDr. Johnstone isDistinguished. Learn about Prostate Cancer.
- Rhabdomyosarcoma EmbryonalDr. Johnstone isDistinguished. Learn about Rhabdomyosarcoma Embryonal.
- Undifferentiated Pleomorphic SarcomaDr. Johnstone isDistinguished. Learn about Undifferentiated Pleomorphic Sarcoma.
View All 9 Distinguished Conditions
- Advanced
- Alveolar Soft Part SarcomaDr. Johnstone isAdvanced. Learn about Alveolar Soft Part Sarcoma.
- AngiosarcomaDr. Johnstone isAdvanced. Learn about Angiosarcoma.
- AstrocytomaDr. Johnstone isAdvanced. Learn about Astrocytoma.
- Atypical Teratoid Rhabdoid Tumor (ATRT)Dr. Johnstone isAdvanced. Learn about Atypical Teratoid Rhabdoid Tumor (ATRT).
- Brain TumorDr. Johnstone isAdvanced. Learn about Brain Tumor.
- Embryonal Tumor with Multilayered Rosettes
- EpendymomaDr. Johnstone isAdvanced. Learn about Ependymoma.
- Epithelioid SarcomaDr. Johnstone isAdvanced. Learn about Epithelioid Sarcoma.
- FibrosarcomaDr. Johnstone isAdvanced. Learn about Fibrosarcoma.
- GlioblastomaDr. Johnstone isAdvanced. Learn about Glioblastoma.
- GliomaDr. Johnstone isAdvanced. Learn about Glioma.
- GliosarcomaDr. Johnstone isAdvanced. Learn about Gliosarcoma.
- LiposarcomaDr. Johnstone isAdvanced. Learn about Liposarcoma.
- Lung CancerDr. Johnstone isAdvanced. Learn about Lung Cancer.
- MesenchymomaDr. Johnstone isAdvanced. Learn about Mesenchymoma.
- Metastatic Brain TumorDr. Johnstone isAdvanced. Learn about Metastatic Brain Tumor.
- Myxoid LiposarcomaDr. Johnstone isAdvanced. Learn about Myxoid Liposarcoma.
- NeuroepitheliomaDr. Johnstone isAdvanced. Learn about Neuroepithelioma.
- Non-Muscle Invasive Bladder CancerDr. Johnstone isAdvanced. Learn about Non-Muscle Invasive Bladder Cancer.
- OligodendrogliomaDr. Johnstone isAdvanced. Learn about Oligodendroglioma.
- Pediatric Low-Grade Glioma (pLGG)Dr. Johnstone isAdvanced. Learn about Pediatric Low-Grade Glioma (pLGG).
- Pleuropulmonary BlastomaDr. Johnstone isAdvanced. Learn about Pleuropulmonary Blastoma.
- Posterior Fossa TumorDr. Johnstone isAdvanced. Learn about Posterior Fossa Tumor.
- Primitive Neuroectodermal Tumor (PNET)Dr. Johnstone isAdvanced. Learn about Primitive Neuroectodermal Tumor (PNET).
View All 24 Advanced Conditions
- Experienced
- Acinic Cell Carcinoma of Salivary GlandsDr. Johnstone isExperienced. Learn about Acinic Cell Carcinoma of Salivary Glands.
- Adenoid Cystic CarcinomaDr. Johnstone isExperienced. Learn about Adenoid Cystic Carcinoma.
- Adrenal CancerDr. Johnstone isExperienced. Learn about Adrenal Cancer.
- Adrenocortical CarcinomaDr. Johnstone isExperienced. Learn about Adrenocortical Carcinoma.
- ALK-Positive Non-Small Cell Lung CancerDr. Johnstone isExperienced. Learn about ALK-Positive Non-Small Cell Lung Cancer.
- Anal CancerDr. Johnstone isExperienced. Learn about Anal Cancer.
- Anaplastic Thyroid CancerDr. Johnstone isExperienced. Learn about Anaplastic Thyroid Cancer.
- Angiosarcoma of the ScalpDr. Johnstone isExperienced. Learn about Angiosarcoma of the Scalp.
- Breast CancerDr. Johnstone isExperienced. Learn about Breast Cancer.
- Cervical CancerDr. Johnstone isExperienced. Learn about Cervical Cancer.
- ChondrosarcomaDr. Johnstone isExperienced. Learn about Chondrosarcoma.
- ChordomaDr. Johnstone isExperienced. Learn about Chordoma.
- Choroid Plexus CarcinomaDr. Johnstone isExperienced. Learn about Choroid Plexus Carcinoma.
- EGFR Positive Lung CancerDr. Johnstone isExperienced. Learn about EGFR Positive Lung Cancer.
- Endometrial CancerDr. Johnstone isExperienced. Learn about Endometrial Cancer.
- Ewing SarcomaDr. Johnstone isExperienced. Learn about Ewing Sarcoma.
- Familial Pancreatic CancerDr. Johnstone isExperienced. Learn about Familial Pancreatic Cancer.
- Follicular Thyroid CancerDr. Johnstone isExperienced. Learn about Follicular Thyroid Cancer.
- GanglioneuroblastomaDr. Johnstone isExperienced. Learn about Ganglioneuroblastoma.
- GanglioneuromaDr. Johnstone isExperienced. Learn about Ganglioneuroma.
- Gastroesophageal Junction CancerDr. Johnstone isExperienced. Learn about Gastroesophageal Junction Cancer.
- Gliomatosis CerebriDr. Johnstone isExperienced. Learn about Gliomatosis Cerebri.
- HER-2 Positive Breast CancerDr. Johnstone isExperienced. Learn about HER-2 Positive Breast Cancer.
- Human Papillomavirus InfectionDr. Johnstone isExperienced. Learn about Human Papillomavirus Infection.
- Large-Cell Lung CarcinomaDr. Johnstone isExperienced. Learn about Large-Cell Lung Carcinoma.
- Laryngeal CancerDr. Johnstone isExperienced. Learn about Laryngeal Cancer.
- Lung AdenocarcinomaDr. Johnstone isExperienced. Learn about Lung Adenocarcinoma.
- Lung NodulesDr. Johnstone isExperienced. Learn about Lung Nodules.
- Malignant Peripheral Nerve Sheath TumorDr. Johnstone isExperienced. Learn about Malignant Peripheral Nerve Sheath Tumor.
- Marginal Zone Lymphoma (MZL)Dr. Johnstone isExperienced. Learn about Marginal Zone Lymphoma (MZL).
- Mediastinal TumorDr. Johnstone isExperienced. Learn about Mediastinal Tumor.
- Medullary Thyroid CarcinomaDr. Johnstone isExperienced. Learn about Medullary Thyroid Carcinoma.
- MedulloblastomaDr. Johnstone isExperienced. Learn about Medulloblastoma.
- MeningiomaDr. Johnstone isExperienced. Learn about Meningioma.
- Merkel Cell CarcinomaDr. Johnstone isExperienced. Learn about Merkel Cell Carcinoma.
- Metastatic Pleural TumorDr. Johnstone isExperienced. Learn about Metastatic Pleural Tumor.
- Nasopharyngeal CarcinomaDr. Johnstone isExperienced. Learn about Nasopharyngeal Carcinoma.
- Neuroendocrine Carcinoma of the CervixDr. Johnstone isExperienced. Learn about Neuroendocrine Carcinoma of the Cervix.
- Non-Small Cell Lung Cancer (NSCLC)Dr. Johnstone isExperienced. Learn about Non-Small Cell Lung Cancer (NSCLC).
- Olfactory NeuroblastomaDr. Johnstone isExperienced. Learn about Olfactory Neuroblastoma.
- Oral Squamous Cell CarcinomaDr. Johnstone isExperienced. Learn about Oral Squamous Cell Carcinoma.
- OrchiectomyDr. Johnstone isExperienced. Learn about Orchiectomy.
- Pancreatic CancerDr. Johnstone isExperienced. Learn about Pancreatic Cancer.
- Papillary Thyroid CancerDr. Johnstone isExperienced. Learn about Papillary Thyroid Cancer.
- PlasmacytomaDr. Johnstone isExperienced. Learn about Plasmacytoma.
- Primary Lymphoma of the BrainDr. Johnstone isExperienced. Learn about Primary Lymphoma of the Brain.
- ProstatectomyDr. Johnstone isExperienced. Learn about Prostatectomy.
- Pseudomyxoma PeritoneiDr. Johnstone isExperienced. Learn about Pseudomyxoma Peritonei.
- Radiation Induced MeningiomaDr. Johnstone isExperienced. Learn about Radiation Induced Meningioma.
- Radiation SicknessDr. Johnstone isExperienced. Learn about Radiation Sickness.
- Retroperitoneal LiposarcomaDr. Johnstone isExperienced. Learn about Retroperitoneal Liposarcoma.
- Rhabdoid TumorDr. Johnstone isExperienced. Learn about Rhabdoid Tumor.
- Rhabdoid Tumor Predisposition SyndromeDr. Johnstone isExperienced. Learn about Rhabdoid Tumor Predisposition Syndrome.
- RhabdomyosarcomaDr. Johnstone isExperienced. Learn about Rhabdomyosarcoma.
- Salivary Gland TumorsDr. Johnstone isExperienced. Learn about Salivary Gland Tumors.
- SchwannomaDr. Johnstone isExperienced. Learn about Schwannoma.
- Sinus CancerDr. Johnstone isExperienced. Learn about Sinus Cancer.
- Small Cell Lung Cancer (SCLC)Dr. Johnstone isExperienced. Learn about Small Cell Lung Cancer (SCLC).
- Smoldering Multiple MyelomaDr. Johnstone isExperienced. Learn about Smoldering Multiple Myeloma.
- Squamous Cell Lung CarcinomaDr. Johnstone isExperienced. Learn about Squamous Cell Lung Carcinoma.
- Squamous Cell Skin CarcinomaDr. Johnstone isExperienced. Learn about Squamous Cell Skin Carcinoma.
- Stomach CancerDr. Johnstone isExperienced. Learn about Stomach Cancer.
- Synovial SarcomaDr. Johnstone isExperienced. Learn about Synovial Sarcoma.
- TeratocarcinosarcomaDr. Johnstone isExperienced. Learn about Teratocarcinosarcoma.
- Throat CancerDr. Johnstone isExperienced. Learn about Throat Cancer.
- Thyroid CancerDr. Johnstone isExperienced. Learn about Thyroid Cancer.
- Triple-Negative Breast CancerDr. Johnstone isExperienced. Learn about Triple-Negative Breast Cancer.
- Upper Tract Urothelial Carcinoma (UTUC)Dr. Johnstone isExperienced. Learn about Upper Tract Urothelial Carcinoma (UTUC).
- Vulvar CancerDr. Johnstone isExperienced. Learn about Vulvar Cancer.
View All 69 Experienced Conditions
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