Medicare Advantage

Medicare and Medicaid in Oregon: 7 Dual Special Needs Plans for 2027

SALEM, Ore. — For Oregonians who qualify for both Medicare and the Oregon Health Plan, the 2027 plan year brings seven Dual Special Needs Plans to choose from statewide, according to the Centers for Medicare & Medicaid Services Medicare Advantage Landscape Source Files for 2027. These plans, known as D-SNPs, are a specific type of Medicare Advantage plan built around people who have both kinds of coverage.

The seven D-SNPs are part of a broader slate of 95 Medicare Advantage plans available somewhere in Oregon in 2027, which also includes 13 Chronic Condition Special Needs Plans (C-SNPs) and 6 Institutional Special Needs Plans (I-SNPs). Not every plan is offered in every county.

What is a D-SNP and who qualifies for one in Oregon in 2027?

A D-SNP, or Dual Special Needs Plan, is a Medicare Advantage plan designed only for people who have both Medicare and Medicaid. In Oregon, Medicaid is administered by the Oregon Health Authority through the Oregon Health Plan, and that agency is the one that confirms whether a person is dual-eligible.

Dual eligibility comes in two broad forms. "Full" dual eligibility means a person qualifies for the full range of Medicaid benefits in addition to Medicare. "Partial" dual eligibility means Medicaid helps pay certain Medicare costs — such as premiums or cost-sharing through the Medicare Savings Programs — without providing full Medicaid benefits. Both groups may be eligible for a D-SNP, but the specific category a person falls into can affect which plan they can join. The Oregon Health Authority verifies that status.

Because D-SNPs are built around this dual coverage, they coordinate between Medicare and Medicaid rather than replacing either one. A person enrolled in a D-SNP still has Medicaid through the state.

How many D-SNPs are offered in Oregon for 2027, and which carriers offer them?

For 2027, Oregon has 7 D-SNPs offered statewide by six carriers, drawn from the broader group of 95 Medicare Advantage plans available in the state. The carriers offering D-SNPs in Oregon for 2027 are AllCare Advantage, ATRIO Health Plans, CareOregon Advantage, Centene (WellCare), PacificSource Medicare, and Samaritan Advantage Health Plans. ATRIO Health Plans offers two D-SNPs; each of the other carriers offers one.

The full list of plan names, along with the number of counties each is offered in, is shown in the D-SNP table on this page. A few notes worth flagging from the CMS filing: the Centene (WellCare) D-SNP has been renamed to Wellcare Trillium Health Plan Dual Select Sync (HMO D-SNP), and the PacificSource Medicare D-SNP has been renamed to PacificSource Oregon Dual Rx (HMO D-SNP). The underlying plan contracts carried forward from 2026; the names changed.

Alongside the D-SNPs, Oregon's 2027 Special Needs Plan landscape also includes 13 C-SNPs, which serve people with certain chronic conditions, and 6 I-SNPs, which serve people living in long-term care settings or who need that level of care at home. Those are separate from D-SNPs and have different eligibility rules.

How often can a dual-eligible person in Oregon change Medicare plans in 2027?

People who have both Medicare and Medicaid in Oregon can change their Medicare Advantage or Part D plan more often than most other Medicare beneficiaries. In addition to the fall Annual Enrollment Period that runs October 15 through December 7, 2026 for coverage beginning January 1, 2027, dual-eligible individuals generally have a Special Enrollment Period that lets them make a change once per calendar quarter during the first three quarters of the year.

There is also the Medicare Advantage Open Enrollment Period from January 1 through March 31, which allows one change for people already in a Medicare Advantage plan. The exact rules on what a Special Enrollment Period allows depend on a person's dual status category, which the Oregon Health Authority can confirm. The practical point: a dual-eligible Oregonian is rarely locked in for a full year.

How do I check whether a 2027 D-SNP is offered in my Oregon county?

To check whether a specific D-SNP is offered in your Oregon county for 2027, use the Medicare Plan Finder at medicare.gov and enter your ZIP code, or call 1-800-MEDICARE (1-800-633-4227), which is available 24 hours a day, seven days a week. Those are the official sources that show plan availability at the county level.

The county counts in the D-SNP table on this page come from the CMS Landscape Source File and show how many Oregon counties each plan is offered in — for example, PacificSource Oregon Dual Rx is listed in 8 counties, CareOregon Advantage Plus in 5, AllCare Advantage Redwood Rx and Wellcare Trillium Health Plan Dual Select Sync in 4 each, Samaritan Dual Advantage in 3, and each of the two ATRIO Special Needs Plans in 1. A plan listed statewide may or may not be offered where you live.

For plan-specific details — premium, drug list, provider network, cost-sharing, extra benefits, star rating — the authoritative sources are the Medicare Plan Finder, 1-800-MEDICARE, and each plan's own Evidence of Coverage and provider and pharmacy directories.

Where can Oregonians get free help understanding D-SNPs for 2027?

Free, official help with Medicare questions is available year-round from 1-800-MEDICARE (1-800-633-4227, TTY 1-877-486-2048), 24 hours a day, seven days a week, and from medicare.gov. For questions about Oregon Health Plan eligibility and dual status, the Oregon Health Authority is the state agency that administers Medicaid and confirms dual-eligible status.

Help from these sources costs nothing. Representatives can walk through what plans are offered in a specific ZIP code, explain enrollment periods, and point to plan documents.