"It's not a problem of people going into medicine," Schock told a press conference. "It's a problem of having the hands-on training at the teaching hospitals available."
The number of Medicare-sponsored residencies has not increased in 15 years, he said.
Groups like the Association of American Medical Colleges (AAMC) estimate that the U.S. healthcare system will be short tens if not hundreds of thousands of doctors in the coming decades.
Thursday's bill would cost an estimated $9 billion to $10 billion over 10 years, Schwartz said. The 15,000 new positions would be added over a five-year period.
“Because it takes seven to 10 years to train a doctor, Congress must act now to increase Medicare’s support for graduate medical education," AAMC president Darrell Kirch said in a statement.
"Medical schools and teaching hospitals see these proposals as the beginning of a comprehensive strategy to improve the healthcare of all."