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 Mr. Johnston's expertise for a condition
ConditionClose
- Elite
- Chronic Lymphocytic Leukemia (CLL)
- Distinguished
- Chronic B-Cell Leukemia (CBCL)Mr. Johnston isDistinguished. Learn about Chronic B-Cell Leukemia (CBCL).
- Hairy Cell Leukemia (HCL)Mr. Johnston isDistinguished. Learn about Hairy Cell Leukemia (HCL).
- LeukemiaMr. Johnston isDistinguished. Learn about Leukemia.
- Small Lymphocytic Lymphoma (SLL)Mr. Johnston isDistinguished. Learn about Small Lymphocytic Lymphoma (SLL).
- Advanced
- Chronic Familial NeutropeniaMr. Johnston isAdvanced. Learn about Chronic Familial Neutropenia.
- Experienced
- AgranulocytosisMr. Johnston isExperienced. Learn about Agranulocytosis.
- B-Cell LymphomaMr. Johnston isExperienced. Learn about B-Cell Lymphoma.
- Non-Hodgkin LymphomaMr. Johnston isExperienced. Learn about Non-Hodgkin Lymphoma.
- Waldenstrom MacroglobulinemiaMr. Johnston isExperienced. Learn about Waldenstrom Macroglobulinemia.
Want to save this expert for later?
Not sure about your diagnosis?
Are you the provider on this profile?