This is a chance for you to 'sell yourself' to the interviewer. Share what you think sets you apart from other physicians who may be applying. Remember, be positive. Make sure to mention some of your personal qualities, such as compassion, rather than only your hard skills.
"I am a very committed and dedicated to my job and helping those I am responsible for giving care to. I feel I will bring a great sense of passion for patient care to this job and look forward to being a part of such a great team of healthcare providers."
"I am passionate about being a great physician and doing all I can to make a difference in the lives of my patients. I am a hard worker and believe in teamwork. I believe I could be an asset to the team of providers you have here."
"Even after all these years I look forward to waking up each morning and getting to go to work and help patients begin to heal and get better faster. I'm willing to work longer hours if needed, as well. Since I have no children or domestic responsibilities, I can come to work really early and leave late without any hassles."