Dr. Nagarajan was born and raised and attended medical school in Bangalore. After completing medical school he worked as a junior resident in M.S. Ramaiah Memorial Hospital and as a pulmonology research assistant. He came to Chicago in 2008 and did an externship course at Jackson Park Hospital in Chicago. He feels preventative medicine is most important for the overall health of a community.

He enjoys listening to music, especially soft rock and classical. He plays the keyboard and the guitar at times. He likes watching and playing cricket.