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3301 Overseas HwyMarathon, FL 33050
Phone+1 305-743-5533
Fax+1 305-289-0630
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Summary
- Dr. Cynthia Johnston, MD is an emergency medicine physician in Marathon, Florida. She is currently licensed to practice medicine in Florida, Pennsylvania, and Colorado.
Education & Training
Indiana University School of MedicineResidency, Family Medicine, 1986 - 1988
Indiana University School of MedicineResidency, Pathology-Anatomic and Clinical, 1985 - 1986
Indiana University School of Medicine/Methodist HospitalInternship, Transitional Year, 1984 - 1985
Indiana University School of MedicineClass of 1984
Certifications & Licensure
FL State Medical License 2005 - 2028
CO State Medical License 2008 - 2027
PA State Medical License 2021 - 2024
MD State Medical License 2001 - 2012
Awards, Honors, & Recognition
- CMS Meaningful Use Stage 1 Certification Optum PM and Physician EMR, OptumInsight, 2014









