When it's appropriate for patients to call doctors by their first names

In a piece for MedPage Today, oncologist James C. Salwitz, M.D., says he has at least 100 patients who call him by his first name. And he is not offended. But he has a long-standing relationship with those patients and most have usually asked his permission. However, if patients use the familiar name, not the title 'doctor' without asking if it is OK, it might tell you something about them. Commentary