Thomas Frist

Thomas Frist is the richest man in Tennessee. He earned his medical degree from Washington University. He joined the United States Air Force as a flight surgeon after graduating. Commercial enterprises were how he generated money. He established the American Hospital Company, which now employs tens of thousands. He has been a member of IBM's Management Board for the previous 11 years.

More importantly, he and his father were co-founders of the Hospital Corporation of America. Over 180 hospitals and 1,800 care centers are owned and operated by the firm in 21 states across the United States and London. He is currently one of the reachest doctors in the world, with a net worth of $17.7 billion.

Net Worth: $17.7B