Grey's Anatomy focuses on the fictional lives of physicians who have completed residency.
In the United States and Canada , an attending physician ( also known as an attending , rendering doc , or staff physician ) is a physician ( M.D. or D.O. ) who has completed residency and practices medicine in a clinic or hospital , in the specialty learned during residency . Grey's Anatomy . The series focuses on the fictional lives of surgical interns , residents and attending physicians , as they evolve into seasoned doctors while trying to maintain personal lives and relationships .