Once he understood what a doctor does, Timothy Malone knew that was what he wanted to do with his life. The kid from Mahwah was only five, maybe six when he made that decision. Malone’s thinking never changed until his health tilted out of control in 2010. Malone was diagnosed with Hodgkin lymphoma, a cancer that affects the immune system, turning his life upside down. He wanted nothing to do with hospitals at that point.