The political and financial debate around site-neutral payments has moved from abstract policy circles into the engine room of healthcare economics. Recent federal proposals and regulatory action through 2025 indicate an intensifying push toward equalizing Medicare reimbursement rates regardless of where care is delivered—whether hospital outpatient, physician office, or ASC.

Under the current system, Medicare routinely pays two to four times more for the same outpatient procedure when performed at a hospital compared to an ASC, even when the service and physician work are identical.

CMS administrators and bipartisan policy advocates have recently estimated that fully implemented site-neutral payment reform could save Medicare well over $140 billion over the next decade, largely through curbing inefficiencies and eliminating duplicative site-based fees.

However, the policy is fiercely contested. Hospital groups argue that site-neutral cuts could jeopardize essential safety-net services, particularly in rural and underserved areas, where outpatient departments subsidize broader institutional obligations and emergency care access.

As 2026 nears, both sides are jockeying for position in Congress and in CMS rulemaking. For ASCs, a more equitable payment environment could shift tens of billions in procedures and billions in facility revenue away from hospitals and into lower-cost outpatient settings. For hospitals, especially those with significant outpatient service lines, the stakes are equally high—and opposition is intensifying.