Medicaid plans › Oregon
Oregon Medicaid Managed-Care Plans for Providers
Enrollments are billed 50% at the start and 50% at submission; everything else 100% at the start.
Oregon Health Plan is run by the Oregon Health Authority. 1,309,000 people were enrolled in its 16 managed-care plans in 2024. To see their patients, a provider enrolls with Oregon Health Plan through the OHA Provider Web Portal (MMIS), then applies to each plan separately.
| Plan | Members (2024) | Share | Parent |
|---|---|---|---|
| HealthShare of Oregon | 433,927 | 33.1% | In-state |
| PacificSource Community Solutions - Marion Polk | 143,135 | 10.9% | In-state |
| PacificSource Community Solutions - Lane | 93,578 | 7.1% | In-state |
| InterCommunity Health Network | 83,620 | 6.4% | In-state |
| PacificSource Community Solutions - Central Oregon | 75,250 | 5.7% | In-state |
| Eastern Oregon CCO | 74,566 | 5.7% | In-state |
| AllCare Health Plan | 67,814 | 5.2% | In-state |
| Jackson Care Connect | 64,541 | 4.9% | In-state |
| Trillium Community Health Plan - Tri-County | 48,296 | 3.7% | Centene |
| Umpqua Health Alliance | 40,562 | 3.1% | In-state |
| Trillium Community Health Plan - Southwest | 37,347 | 2.9% | Centene |
| Columbia Pacific | 37,190 | 2.8% | In-state |
| Yamhill Community Care | 34,914 | 2.7% | In-state |
| Advanced Health | 29,736 | 2.3% | In-state |
| Cascade Health Alliance | 27,279 | 2.1% | In-state |
| PacificSource Community Solutions - Columbia Gorge | 17,245 | 1.3% | In-state |
How Joining Works in Oregon
First the state: Oregon Health Plan enrollment through the OHA Provider Web Portal (MMIS), which gives you the Medicaid ID every plan asks for. Then the plans: each takes its own participation request and credentials you from your CAQH ProView (DataSpring) profile. 1 parent company runs plans here, and plans owned by the same company still contract state by state.
How to Join Each Oregon Plan
Trillium Community Health Plan - Tri-County, Trillium Community Health Plan - Southwest (Centene): Centene runs this plan alongside its Ambetter and Wellcare products. Each Centene plan takes its own contract request on the plan's provider website, credentials from your CAQH ProView (DataSpring) profile, and will not load a provider without the state Medicaid ID.
HealthShare of Oregon, PacificSource Community Solutions - Marion Polk, PacificSource Community Solutions - Lane, InterCommunity Health Network, PacificSource Community Solutions - Central Oregon, Eastern Oregon CCO, AllCare Health Plan, Jackson Care Connect, Umpqua Health Alliance, Columbia Pacific, Yamhill Community Care, Advanced Health, Cascade Health Alliance, PacificSource Community Solutions - Columbia Gorge: This plan is run in-state rather than by a national carrier, so participation requests go to the plan's own provider relations or contracting team, listed on its provider website.
Also in Oregon: Medicare, Oregon Health Plan and commercial credentialing.
Questions
Which Oregon Medicaid plan is the largest?
HealthShare of Oregon, with 433,927 members in 2024, 33.1% of the 1,309,000 people enrolled in Oregon's Medicaid managed-care plans.
Do I have to join every Oregon Medicaid plan?
No. Each plan is a separate contract. Practices usually start with the two or three largest plans in their county, then add others as patients ask for them. All of them require Oregon Health Plan enrollment first.
Membership from KFF, Medicaid MCO Enrollment by Plan and Parent Firm, 2024. Plans change when the state rebids its contracts; we confirm the current list on every file.