Dr. Drew

In our list of the world's richest doctors, Dr. Drew is rated last. Dr. Drew is a board-certified internist and integrative medicine specialist who is well-known for his appearances on television and radio. He hosts and directs the VH1 show "Celebrity Rehab," in which he helps celebrities overcome their addictions.

He also presents "Loveline," a radio talk show about couples. Dr. Drew's show has spawned a number of spin-offs, which he has overseen. He is a private health practitioner in Pasadena, California, and is valued at around $25 million in addition to these initiatives.

Net Worth: $25M