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Schedule Now For Existing Patients Use the patient portal to make an appointment with any specialist who has treated you in the last three years. Login to Portal Oana Stingu, RPA-C Oana Stingu, RPA-C Specialties Urology Emergency Medicine Locations Cortland Alvena Ave - Urology Guthrie Cortland Medical Center 866-488-4743 Accepting New Patients Showing 1-3 of 3 Results Pagination