Dr. Johnston is on Doximity
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Office
3914 Murphy Canyon Rd
Ste A150
San Diego, CA 92123Phone+1 858-573-9902Fax+1 858-573-9906
Education & Training
Canton Medical Education Foundation/NEOMEDResidency, Internal Medicine, 1985 - 1988
University of California, Irvine, School of MedicineClass of 1985
Certifications & Licensure
CA State Medical License 1988 - 2025
OH State Medical License 1987 - 1990
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