Final answer:
The most important detail to record when scheduling an appointment for a new patient, in addition to their name, is the phone number. It is crucial for follow-up and communication prior to the appointment.
Step-by-step explanation:
When scheduling an appointment for a new patient, it is important to record several pieces of information. While the patient’s name is essential, the most important additional detail to record would typically be the patient’s phone number. This allows the medical office to contact the patient for any follow-up, confirmations, or necessary communications prior to the appointment. Social security numbers are sensitive information and may not be required at this stage, and while home addresses are important for billing and records, they are not as immediately critical as a phone number for scheduling and appointment logistics.