Summarize of the Video/Dr. Bob

Bob is a doctor who lives and works in a low-income city (New York City) and is a very humble worker. Dr. Bob decided to change his career and go to medical school at the age of 36. He wanted to help people and make some sort of change in the world. Dr. Bob rarely makes any money; most of what he makes, he finds a way to "pay it back" to his patients, whether it's do a nice gesture for one of his patients or write them a check to pay their prescriptions.