Dr. Andy Margileth is 101 years old, and this pediatrician is still seeing patients at the University of Miami's Miller School of Medicine. He told CBS News, “It's a feel good job. It's not even a job. It's just fun.” Dr. Andy, as he is known, is one of about a dozen physicians in the US who’ve hit the century mark and are still working. Born just after the end of World War I, Dr. Andy served in the Navy during World War II.