Medicare proposes protection when a plan's doctor list is wrong
Published

Under a CMS proposal, Medicare Advantage plans would have to update their provider directories at least every 90 days and publish an accuracy score. If you see an out-of-network doctor because the directory listed them wrongly, you'd pay only your in-network share. It's a proposal for 2028, not yet final.
Source: CMS
This is a plain-language summary. Read the original source for full details.