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Dr. Johnston is on Doximity

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  • Office

    PO Box 209
    Saint Paris, OH 43072

Education & Training

  • Wright State University
    Wright State UniversityResidency, Emergency Medicine, 1990 - 1994
  • Wright State University Boonshoft School of Medicine
    Wright State University Boonshoft School of MedicineClass of 1990

Certifications & Licensure

  • HI State Medical License
    HI State Medical License 2010 - 2026
  • OH State Medical License
    OH State Medical License 1991 - 2026
  • American Board of Emergency Medicine Emergency Medicine