Malpractice suits are a state matter, not a federal one. They are filed in state courts. And in about half the states there already is some sort of tort reform that caps malpractice payouts. Evidence indicates that this has reduced malpractice premiums in those states but has done nothing to lower the cost of healthcare insurance.
I know. Many want it at the federal level and would prefer keeping Obamacare in place as a hostage for politician fundraising.