President-elect Donald Trump has chosen a vociferous Obamacare critic and an Indiana policy expert to help him overhaul the U.S. health care system, a transition official told Reuters.

Trump is set to name Republican Representative Tom Price, an orthopedic surgeon from Georgia, as his Health and Human Services secretary, and consultant Seema Verma to lead the Centers for Medicare and Medicaid Services (CMS), a powerful agency that oversees government health programs and insurance standards.

He is expected to cast Price and Verma as a "dream team" to help him once he takes office on Jan. 20 with his campaign pledge to repeal President Barack Obama's signature health law, the Affordable Care Act that is better known as Obamacare.