Question: California Subscriber Answer: Although nurses often record this information, a frontdesk staff member or the patients (via questionnaire) may even perform the function. The ENT or a nurse practitioner (NP), however, must complete the history of present illness (HPI). Be careful: Check your state requirements. For instance, some states require the physician to sign off on any incidentto services, such as 99211 (Office or other outpatient visit for the evaluation and management of an established patient ...), as well as higher-level E/M services such as 99212-99215, provided by mid-level providers (for instance, an NP). Other states do not require the physician to sign off on incident-to services, but they do have to create the plan of care.