Lowest Graded Hospitals for Patient Safety in Washington

The Leapfrog Group gave Confluence Health Hospital and several other Washington hospitals a “C” grade in its Spring 2026 patient safety rankings, which evaluate hospitals on errors, injuries, accidents, and infections.

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How Leapfrog Calculates Safety Grades

The nonprofit organization released its latest biannual hospital safety report last week, ranking Washington 40th nationally for patient safety. No Washington hospitals received “D” or “F” grades in the report.

These biannual safety grades for patient safety, an ‘A, B, C, D, or F,’ are assigned to most general hospitals in the United States based on their abiliy to protect patients from errors, accidents, injuries, and infections.

Why Hospital Safety Grades Matter

“The good news is that hospitals across the country are making meaningful strides in patient safety and helping save countless lives,” said Leah Binder, President and CEO of The Leapfrog Group. “But not all hospitals are the same. That’s why it’s so important for people to consult Safety Grades and do their research when choosing a hospital.”

Here are the lowest graded hospitals for safety in the U.S, earning less than a C grade.

Hospitals With the Lowest Safety Grades in Washington for Spring 2026

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Capital Medical Center

Grade: C

3900 Capital Mall Drive SW
Olympia, WA 98502-5026

Confluence Health Hospital

Grade: C

1201 S Miller St
Wenatchee, WA 98801-1948

Harborview Medical Center

325 Ninth Avenue
Seattle, WA 98104-2499

Kadlec Regional Medical Center

Grade: C

888 Swift Boulevard
Richland, WA 99352

MultiCare Allenmore Hospital

Grade: C

1901 S. Union Avenue
Tacoma, WA 98405

MultiCare Auburn Medical Center

Grade: C

202 N. Division Street
Auburn, WA 98001

MultiCare Covington Medical Center

Grade: C

17700 SE 272nd St
Covington, WA 98402

MultiCare Deaconess Hospital

Grade: C

800 W. Fifth Avenue
Spokane, WA 99204-2803

Multicare Good Samaritan Hospital

Grade: C

401 15th Avenue SE
Puyallup, WA 98372-0118

Overlake Hospital Medical Center

Grade: C

1035 116th Avenue NE
Bellevue, WA 98004-4604

Providence Centralia Hospital

Grade: C

914 S. Scheuber Road
Centralia, WA 98531-9027

Providence Holy Family Hospital

Grade: C

5633 N Lidgerwood St
Spokane, WA 99208-1224

Providence Regional Medical Center Everett

Grade: C

1321 Colby Ave
Everett, WA 98201-1689

Providence St. Peter Hospital

Grade: C

413 Lilly Road NE
Olympia, WA 98506-5166

Swedish Health Services Issaquah

Grade: C

751 N.E. Blakely Drive
Issaquah, WA 98029

Swedish Medical Center First Hill

Grade: C

747 Broadway
Seattle, WA 98122-4307

Tacoma General Hospital

Grade: C

315 Martin Luther King Jr. Way
Tacoma, WA 98405-0299

University of Washington Medical Center – Northwest Campus

Grade: C

1550 N. 115th Street
Seattle, WA 98133-8401

Valley Medical Center

Grade: C

400 S. 43rd Street PO Box 50010
Renton, WA 98058-5010