As cancer evolves from a terminal illness to a chronic medical condition, so too does the view of clinical services. Palliative care and physical medicine and rehabilitation (PM&R) will increase in acceptance because they provide a valuable resource. The overarching theme is improving cancer-related symptoms or treatment-related side effects, improving patient health-related quality of life, lessening caregiver burden, and valuing patient-centered care and shared decision making. Managing symptom burden may improve therapy participation/performance. PM&R and palliative care departments are well-equipped to develop patient-centered care protocols, and could play an important role in developing a universal measure of performance status.