Oregon Medicare Plans Mailed 2027 Coverage Notices
If you are among the over 976,000 eligible Oregonians, check your mail for upcoming changes to your plan.
Updated on Sept. 29, 2026 in Senior Health
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Medicare Advantage and prescription drug plans have begun mailing coverage change notices to enrollees across Oregon. These documents detail plan adjustments, such as premium and provider network modifications, that will take effect on January 1, 2027.
Why it matters
Insurers update their premiums, deductibles, benefits, and provider networks annually, requiring beneficiaries to review their current coverage. These changes can significantly impact your out-of-pocket costs and access to specific healthcare systems like OHSU.
Official government figures show 523,000 Oregonians are enrolled in Medicare Advantage plans and 307,000 are in stand-alone Part D plans, representing a large majority of the 976,000 eligible state residents. The exact impact on individual coverage remains specific to each person's plan.
The players
OHSU
An academic health center in Oregon that is leaving the Regence Medicare Advantage network beginning January 1.
Providence
A health system whose Medicare Advantage plans are being discontinued for 2027.
The details
Insurers adjust plan terms annually, which can include the termination of specific products or changes to contracted provider networks. For 2027, this includes the discontinuation of Providence Medicare Advantage plans and OHSU leaving the Regence Medicare Advantage network. These updates are communicated to beneficiaries through the Annual Notice of Change, which lists the specific adjustments for the coming calendar year.
Timeline
October 15, 2026: Medicare annual open enrollment begins.
December 7, 2026: Medicare annual open enrollment ends.
December 31, 2026: Current Medicare Advantage coverage ends.
January 1, 2027: New Medicare coverage changes take effect.
Health Landscape
This cycle of plan changes occurs under the federal regulatory framework governing private Medicare plan management. It reflects the ongoing annual evolution of benefits and provider access within the private insurance marketplace for seniors.
Review your Annual Notice of Change carefully to see if your preferred doctors or pharmacies will remain in your network for 2027. If you have questions about your plan options or need to switch, visit the Medicare.gov website or call 1-800-MEDICARE.
The takeaway
Annual plan changes are a routine part of Medicare enrollment, but they can significantly affect your network access and costs. It is important to compare your 2027 options during the enrollment window to ensure your plan continues to meet your healthcare needs.
What happens next
The Medicare annual open enrollment period begins October 15, 2026, and concludes December 7, 2026.
Further reading
For guidance on navigating your plan benefits, visit our Oregon Senior Health section.
More information
To review your coverage, use the compare Medicare plan options tool.
Source note: This article includes information reported by Oregon Live.
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