- Ms. Robinson she discusses how she got into the physician assistant field and why she has stayed in it. She also explains the roles and responsibilities of the physician assistant in today's hospitals and how she operates here at Duke. In this context, she also elaborates on what it takes to make a good physician assistant, and how Duke is training physician assistants to have these skills. With regards to the job of physician assistant, she discusses some of the history of the field, the current state and the potential future of the physician assistant as a major source of primary care. Finally, in regards to her interest in obesity and family care, she expresses her concern over the changes in the demographics and spread of obesity she has observed during her career.