President-elect Donald Trump is reportedly poised to select Rep. Tom Price to head the Department of Health and Human Services.

Price, a 62-year-old orthopedic surgeon, was an early Trump supporter and has been a critic of President Barack Obama's health care law, the Affordable Care Act. When Trump was campaigning, Price appeared alongside him at a rally calling for the repeal of the law and for years has proposed alternative plans to replace it.

The appointment, first reported by the Washington Post, could come as soon as Tuesday and suggests Trump is sincere about his efforts to repeal Obamacare, though since his election he has also said that he would consider keeping some popular portions of the law.

Democrats, including Obama, have warned Republicans that any laws aimed at health insurance coverage should not result in a lapse in health care coverage that was newly gained under the Affordable Care Act.

As secretary of the Department of Health and Human Services – which encompasses multiple agencies, including the National Institutes of Health, the Food and Drug Administration and the Centers for Disease Control and Prevention – Price would oversee the implementation of a replacement plan. Republicans in recent weeks also have stated their intention to reform Medicare.

Price has served six terms in Congress and is currently chairman of the House Budget Committee. He will succeed Secretary Sylvia Burwell, who has held the post since June 2014.