During his campaign for senate, Oz promised to expand Medicare Advantage, the private-run version of Medicare that has become increasingly popular but also a source of widespread fraud.

TV personality Oprah Winfrey helped launch Oz into fandom and fortune. After years of appearing on her show as a health expert, Oz landed a talk show of his own that aired for 13 seasons. Oz has been accused of hawking dubious medical treatments and products on his defunct TV show. And during the height of the COVID-19 pandemic, he pressured government officials to make hydroxychloroquine widely available, despite unresolved questions about its safety and effectiveness.