Background. End-of-life discussions (EOLds) occur infrequently until cancer patients become terminally ill. Methods. To identify factors associated with the timing of EOLds, we conducted a nationwide survey of 864 medical oncologists. We surveyed the timing of EOLds held with advanced cancer patients regarding prognosis, hospice, site of death, and do-not-resuscitate (DNR) status; and we surveyed physicians' experience of EOLds, perceptions of a good death, and beliefs regarding these issues. Multivariate analyses identified determinants of early discussions. Results. Among 490 physicians (response rate: 57%), 165 (34%), 65 (14%), 47 (9.8%), and 20 (4.2%) would discuss prognosis, hospice, site of death, and DNR status, respectively, "now" (i.e., at diagnosis) with a hypothetical patient with newly diagnosed metastatic cancer. In multivariate analyses, determinants of discussing prognosis "now" included the physician perceiving greater importance of autonomy in experiencing a good death (odds ratio [OR]: 1.34; p 5 .014),