DepartmentsRadiation OncologyLocationJacksonville, FloridaLanguagesEnglishExisting patientsSend a secure message via patient portalRefer a patient Share Facebook Twitter Print details Email Conditions treatedHead and neck cancerLung cancerLymphoma Procedures performedIGRTIMRTStereotactic radiation therapy InterestsGastrointestinal cancersHead and neck cancersLung cancersLymphomasImage-guided radiation therapy, including IMRT, respiratory-gated radiation therapy and stereotactic body radiotherapy. Mayo Clinic locations Jacksonville, Florida Driving Directions More info Billing & insurance Accessibility services Education1999MDUniversity of Texas Health Science Center at San Antonio Activities and honorsCertifications2005Radiation OncologyAmerican Board of RadiologyPublicationsSee my publications Conditions treatedProcedures performedInterestsMayo Clinic locationsEducationActivities and honors Request an appointment PST-20223952 Doctors & Medical Staff Ko, Stephen J. M.D.