DepartmentsHospital Internal MedicineLocationPhoenix, ArizonaLanguagesEnglishExisting patientsSend a secure message via patient portal InterestsNocturnist Mayo Clinic locations Phoenix, Arizona Driving Directions More info Billing & insurance Accessibility services Activities and honorsCertifications2016Internal MedicineAmerican Osteopathic Board of Internal Medicine InterestsMayo Clinic locationsActivities and honors Request an appointment PST-20586554 Doctors & Medical Staff Shanmuganatha, Gajanth D.O.