As of Sept. 18, here’s how the five richest physicians rank, per Forbes:1. Thomas Frist Jr., MD, and familyNet worth: $32.2 billionDr. Frist co-founded HCA Healthcare with his father in 1968. Patrick Soon-Shiong, MDNet worth: $5.9 billionBest known for developing the cancer drug Abraxane, Dr. Soon-Shiong sold two pharmaceutical companies — Abraxis in 2010 and American Pharmaceutical Partners in 2008 — for a combined $9.1 billion. August Troendle, MDNet worth: $3.8 billionDr. Troendle is the founder, president and CEO of Medpace, a clinical research organization where he holds a 24% ownership stake. Phillip Frost, MDNet worth: $2.1 billionCurrently CEO of diagnostics and pharmaceutical company Opko Health, Dr.