How the deal unfolded
Both boards approve the combination and the systems announce it
Samaritan named long-term financial stability as a main reason.
Affiliation Agreement signed
MultiCare Health System, a Washington nonprofit, becomes the sole corporate member of Samaritan Health Services, an Oregon nonprofit.
Oregon Health Authority orders approval with conditions
MultiCare commits $700 million over ten years, at least $300 million of it in the first five, and keeps existing services.
Final order on the Medicaid health plan filing
The closing target of October 1 had moved back one month.
The combination closes
Samaritan leaders join MultiCare's system governance. Samaritan's chief executive also leads the Oregon Coast to Cascades region.
Where the two systems operate
Samaritan's five hospitals are Good Samaritan Regional Medical Center in Corvallis, Samaritan Albany General Hospital, Samaritan Lebanon Community Hospital, Samaritan Pacific Communities Hospital in Newport and Samaritan North Lincoln Hospital in Lincoln City. They serve Benton, Linn and Lincoln counties in Oregon. MultiCare's hospitals are in Washington, from Spokane and Yakima to Tacoma, Puyallup, Auburn, Covington, Olympia and Bellevue.
The two systems do not share a county, so the deal changes no county's hospital market share. It makes MultiCare a two-state system and adds Samaritan's clinics, walk-in clinics and surgery centers to the group.
What the combined system holds in our data
| Washington | Oregon | Idaho | |
|---|---|---|---|
| Hospitals | 13, two of them behavioral (MultiCare's own count before the deal) | 5 (2 acute, 3 critical access) | 0 |
| Urgent care and walk-in clinics | 55 | 7 | 2 |
| Surgery centers | 16 | 1 | 0 |
| Clinics and other outpatient sites | see note | 35 | 0 |
| All open sites in our data | 98 | 44 | 2 |
Together the two systems run 18 hospitals. Site counts are open sites linked to MultiCare as of November 4, 2026, including Samaritan's since the deal closed; the Oregon clinic count comes from Samaritan's own location pages, and Washington clinics beyond urgent care and surgery centers are not fully mapped. Idaho's two sites are the Kootenai Indigo urgent care centers in Coeur d'Alene and Hayden. Behavioral hospitals held through joint ventures, such as Wellfound with CommonSpirit, are not counted here.
What changes for Samaritan's sites
- Samaritan's hospitals, clinics, walk-in clinics and SamCare Express sites keep their names and add MultiCare branding.
- Samaritan Health Plans, the insurer, is part of the deal. Oregon issued a final order on the health plan's Medicaid filing on October 9, 2026.
- Our records now show Samaritan Health Services under MultiCare as its sole corporate member, so MultiCare's owner page includes its Oregon sites.
How we measured it
Site counts come from MultiCare's and Samaritan's own location pages, saved on November 4, 2026, and from CMS and state records. Deal dates come from the news reports and regulator statements listed below.
Questions
When did MultiCare and Samaritan complete their combination?
On November 1, 2026, after Oregon regulators approved the final elements of the deal in October.
Does the deal change hospital market share in Oregon or Washington?
No county has hospitals from both systems. Samaritan serves Benton, Linn and Lincoln counties in Oregon, and MultiCare's hospitals are in Washington.
How much is MultiCare investing in Samaritan?
MultiCare committed $700 million over ten years to Samaritan and its network, one of the conditions of the Oregon Health Authority's approval.
Does Samaritan keep its name?
Yes. Samaritan keeps its name and local leadership, with MultiCare branding added, and operates as MultiCare's Oregon Coast to Cascades division.
Sources
- Healthcare Dive: MultiCare, Samaritan complete merger (2026-11-03)
- Lincoln Chronicle: With final regulatory approval, Samaritan says merger will take effect Nov. 1
- Oregon Health Authority: Health Care Market Oversight order on MultiCare and Samaritan (2026-08-24)
- Fierce Healthcare: Samaritan Health Services, MultiCare Health System merger to close Nov. 1
- MultiCare and Samaritan Health Services location pages (saved 2026-11-04)