A proposal that would have made it easier for Medicare Advantage members to leave a plan the moment their own doctor left its network did not survive the rulemaking process. The Centers for Medicare & Medicaid Services considered the change as part of its 2027 Medicare Advantage and Part D final rule and chose not to adopt it, leaving the existing, narrower path to a mid-year switch in place for the coming year.
What CMS Considered and Ultimately Set Aside
Medicare Advantage plans already offer a special enrollment period tied to what CMS calls a “significant” change in a plan’s provider network — something like the termination of a contract with a large hospital system. That enrollment period only opens when CMS or the plan itself determines the change meets that significance threshold, not simply because one enrollee’s own doctor has left the network.
The proposed change would have removed that significance requirement and made the special enrollment period available to any “affected enrollee,” defined as someone assigned to, currently being treated by, or treated within the past three months by a provider whose contract ended. Plans would have had to include switch-eligibility information directly in the termination notice sent to enrollees, rather than waiting on a separate CMS-level finding first, according to KFF’s analysis of the final rule.
Free plan-change checklist: A Medicare plan can change its costs, drugs and doctors for next year even when its name stays the same. Check the changes with the free 2027 review sheet.
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The Practical Effect for Someone Whose Doctor Leaves Mid-Year
Because the proposal was not finalized, a member whose physician exits their plan’s network in the middle of 2027 does not automatically gain a personal right to switch coverage. The only opening that remains is the existing, narrower special enrollment period, which depends on CMS or the plan first concluding that the network change is significant on a plan-wide basis — a determination the individual enrollee does not control and may never see triggered for their specific case.
That leaves a real gap for people who chose a plan specifically because it included their preferred physician or hospital. Access to preferred providers is consistently cited by Medicare beneficiaries as central to how they pick coverage in the first place, which is part of why the proposal drew what CMS itself described as broad interest during the comment period.
Why CMS Says the Issue Is Not Closed
CMS did not explain its reasoning for declining to finalize the change, but the agency, per its own final rule fact sheet, noted that a range of enrollment and marketing topics generated significant comment and said some may be addressed in future rulemaking. That leaves room for a revised version of the policy in a later contract year, without committing to when, or whether, that will happen.
Crowell & Moring’s summary for plan sponsors lists the provider-termination SEP among the handful of proposals CMS deferred rather than rejected outright, alongside other enrollment questions the agency plans to keep studying.
What the Existing Path Still Requires
For now, the rule that governs 2027 leaves the standard significant-network-change process as the only mechanism. A member whose own doctor leaves does not, by that fact alone, qualify for a personal special enrollment period; the plan-wide significance finding remains the trigger, and it happens on Medicare’s timeline and Medicare’s criteria, not the enrollee’s.
That means someone facing this situation in 2027 is left checking the standard channels — the plan’s provider directory, the notice a plan sends when a contract ends, and the fall Open Enrollment Period — rather than relying on an automatic right tied to their own provider relationship.
Comparing plans when a doctor’s status is uncertain
The gap this rule leaves in place means confirming a provider’s network status has to happen before a plan is chosen, not after a doctor’s departure is announced. That verification, along with a plan’s broader drug and cost comparison, falls outside the special enrollment rules examined here and depends on tools available during the standard sign-up period.
It is a 42-page decision kit covering a cost calculator spreadsheet that compares plans on cost, drugs and doctors and a prescription-by-plan comparison.
Look up plan and provider comparison steps in The 2027 Medicare Open Enrollment Decision Kit.
This article was researched and drafted with the help of AI and reviewed by The Financial Wire editorial team before publication.



