Here are 21 billionaires in the healthcare sector in the United States, according to the Forbes list of "The World's Billionaires." These healthcare industry leaders are listed below with their net worth, as determined by Forbes. 1. Patrick Soon-Shiong. CEO of NantHealth: $8.9 billion 2. Thomas Frist Jr. Co-Founder of Hospital Corporation of America: $8.2 billion 3. Carl Cook. CEO of Cook Group: $7.3 billion 4. Reinhold Schmieding. Founder and CEO of Arthrex: $4.4 billion 5. Ronda Stryker. Director of the Board of Stryker: $4.1 billion 6. Phillip Frost. Founder of Opko Health: $3.8 billion 7. Randal Kirk. Chairman and CEO of Intrexon: $3.5 billion 8. Kieu Hoang. Founder of Rare Antibody Antigen Supply and Shanghai RAAS Blood Products: $3.1 billion 9. Pat Stryker. Inherited Stake of Stryker: $2.6 billion 10. Robert Duggan. Former CEO of Pharmacyclics and Healthcare Investor: $2.5 billion 11. John Brown. Chairman Emeritus of Stryker: $2.5 billion 12. Jon Stryker. Inherited Stake of Stryker: $2.3 billion 13. Judy Faulkner. Founder and CEO of Epic: $2.3 billion 14. Stewart Rahr. Former Owners of $Kinray: $2 billion 15. Amy Wyss. Inherited Stake of Synthes: $1.8 billion 16. Gary Michelson. Spine Device Inventor — Sold Patents to Medtronic: $1.8 billion 17. John Kapoor. Founder and Chairman of Insys Therapeutics: $2 billion 18. Forrest Preston. Founder, Owner, CEO of Life Care Centers of America: $1.4 billion 19. James Leininger. Founder of Kinetic Concepts: $1.3 billion 20. Leonard Schleifer. Founder and CEO of Regeneron Pharmaceuticals: $1.3 billion 21. John Martin. Chairman of Gilead Sciences: $1.1 billion *This list was updated with net worth as of Oct. 13, 2016. The original version of this list included the Forbes 2016 ranking numbers, and Theranos Founder Elizabeth Holmes was on that list. Source