Clallam County

• Forks Community Hospital
• Olympic Memorial Hospital

Clark County

• Legacy Salmon Creek Hospital
• Southwest Washington Medical Center

Cowlitz County

• PeachHealth St. John Medical Center

Island County

• Whidbey General Hospital

Jefferson County

• Jefferson Healthcare

King County/Centralized Transfusion Service Hospitals

• Auburn Regional Medical Center
• Children’s Hospital and Regional Medical Center
• Enumclaw Memorial Hospital
• Evergreen Regional Hospital
• Group Health Cooperative/Central Hospital
• Group Health Cooperative/Eastside Hospital
• Harborview Medical Center
• Highline Community Hospital
• Kindred Hospital, Seattle
• Northwest Hospital & Medial Center
• Northwest Kidney Centers
• Overlake Hospital Medical Center
• Seattle Cancer Care Alliance
• Snoqualmie Valley Hospital
• Swedish Medical Center – First Hill
• Swedish Medical Center – Ballard Campus
• Swedish Medical Center – Cherry Hill Campus
• University of Washington Medical Center
• Valley Medical Center
• Veterans Puget Sound Healthcare System
• Virginia Mason Medical Center

Kitsap County

• Harrison Memorial Hospital
• Naval Hospital Bremerton

Lewis County

• Morton General Hospital
• Providence Centralia Hospital

Mason County

• Mason General Hospital

Pierce County

• Madigan Army Medical Center

Skagit County

• Island Hospital
• Skagit Valley Hospital
• United General Hospital

Snohomish County

• Cascade Valley Hospital
• Providence Everett Medical Center – Colby Campus
• Stevens Healthcare
• Valley General Hospital

Thurston County

• Capital Medical Center
• Providence St. Peter Hospital

Whatcom County

• St. Joseph Hospital