Question: Iowa Subscriber Answer: "New patient" means a patient who has not received any professional services, such as an E/M service or other face-to-face service (like a surgical procedure) from the physician or physician group practice -- with the same physician specialty -- within the past three years. (Remember to check whether your payer considers EPs to be the same specialty as cardiologists.) So, for instance, reading an ECG in the absence of an E/M service or other face-toface service with the patient does not affect the new-patient designation. If you are using the same tax ID number, the established patients are still established, and you should use 99212-99215 (Office or other outpatient visit for the evaluation and management of an established patient ...).