Mehmet Oz, a celebrity heart surgeon turned talk show host and lifestyle guru, is President-elect Donald Trump’s pick to run the Centers for Medicare and Medicaid Services, the massive federal health care bureaucracy that covers more than a third of

President-elect Donald Trump has tapped several TV personalities for key posts in his incoming administration, including Dr. Mehmet Oz to run the Centers for Medicare and Medicaid Services, an agency that oversees health coverage for 150 million people.

The celebrity physician would run the Centers for Medicare and Medicaid Services, a powerful agency in charge of programs that cover more than 150 million Americans.

Trump will nominate the former Senate candidate to oversee major healthcare programs like Medicare, Medicaid, the Children’s Health Insurance Program (CHIP), and the Affordable Care Act.

Trump said Tuesday he would nominate Oz as administrator of the Centers for Medicare & Medicaid Services. The agency’s scope is huge: CMS oversees coverage for more than 160 million Americans, nearly half the population.