| OVERLAKE HOSPITAL MEDICAL CENTER BELLEVUE | BELLEVUE | Acute Care Hospitals | 3 | Yes |
| PEACEHEALTH PEACE ISLAND MEDICAL CENTER FRIDAY HARBOR | FRIDAY HARBOR | Critical Access Hospitals | N/A | Yes |
| PEACEHEALTH SOUTHWEST MEDICAL CENTER VANCOUVER | VANCOUVER | Acute Care Hospitals | 4 | Yes |
| PEACEHEALTH ST JOHN MEDICAL CENTER LONGVIEW | LONGVIEW | Acute Care Hospitals | 3 | Yes |
| PEACEHEALTH UNITED GENERAL MEDICAL CENTER SEDRO WOOLLEY | SEDRO WOOLLEY | Critical Access Hospitals | 4 | Yes |
| PROSSER MEMORIAL HOSPITAL PROSSER | PROSSER | Critical Access Hospitals | 5 | Yes |
| PROV SACRED HRT MED CTR & CHILDS HOSP. SPOKANE | SPOKANE | Acute Care Hospitals | 2 | Yes |
| PROVIDENCE CENTRALIA HOSPITAL CENTRALIA | CENTRALIA | Acute Care Hospitals | 4 | Yes |
| PROVIDENCE HOLY FAMILY HOSPITAL SPOKANE | SPOKANE | Acute Care Hospitals | 2 | Yes |
| PROVIDENCE MOUNT CARMEL HOSPITAL COLVILLE | COLVILLE | Critical Access Hospitals | 3 | Yes |
| PROVIDENCE REGIONAL MEDICAL CENTER EVERETT EVERETT | EVERETT | Acute Care Hospitals | 2 | Yes |
| PROVIDENCE ST JOSEPH HOSPITAL CHEWELAH | CHEWELAH | Critical Access Hospitals | N/A | Yes |
| PROVIDENCE ST MARY MEDICAL CENTER WALLA WALLA | WALLA WALLA | Acute Care Hospitals | 3 | Yes |
| PROVIDENCE ST PETER HOSPITAL OLYMPIA | OLYMPIA | Acute Care Hospitals | 3 | Yes |
| PULLMAN REGIONAL HOSPITAL PULLMAN | PULLMAN | Critical Access Hospitals | 3 | Yes |
| QUINCY VALLEY MEDICAL CENTER QUINCY | QUINCY | Critical Access Hospitals | N/A | Yes |
| RAINIER SPRINGS VANCOUVER | VANCOUVER | Psychiatric | N/A | No |
| SAMARITAN HOSPITAL MOSES LAKE | MOSES LAKE | Acute Care Hospitals | 3 | Yes |
| SEATTLE CHILDREN'S HOSPITAL SEATTLE | SEATTLE | Childrens | N/A | Yes |
| SEATTLE VA MEDICAL CENTER (VA PUGET SOUND HEALTHCARE SYSTEM) SEATTLE | SEATTLE | Acute Care - Veterans Administration | 5 | Yes |
| SHRINERS HOSPITAL FOR CHILDREN SPOKANE | SPOKANE | Childrens | N/A | No |
| SKAGIT VALLEY HOSPITAL MOUNT VERNON | MOUNT VERNON | Acute Care Hospitals | 3 | Yes |
| SKYLINE HOSPITAL WHITE SALMON | WHITE SALMON | Critical Access Hospitals | N/A | Yes |
| SMOKEY POINT BEHAVIORAL HOSPITAL MARYSVILLE | MARYSVILLE | Psychiatric | N/A | No |
| SNOQUALMIE VALLEY HOSPITAL SNOQUALMIE | SNOQUALMIE | Critical Access Hospitals | N/A | Yes |
| SOUTH SOUND BEHAVIORAL HOSPITAL LACEY | LACEY | Psychiatric | N/A | No |
| SPOKANE VA MEDICAL CENTER SPOKANE | SPOKANE | Acute Care - Veterans Administration | 5 | Yes |
| ST ANTHONY HOSPITAL GIG HARBOR | GIG HARBOR | Acute Care Hospitals | 4 | Yes |
| ST CLARE HOSPITAL LAKEWOOD | LAKEWOOD | Acute Care Hospitals | 5 | Yes |
| ST ELIZABETH HOSPITAL ENUMCLAW | ENUMCLAW | Critical Access Hospitals | 3 | Yes |
| ST FRANCIS COMMUNITY HOSPITAL FEDERAL WAY | FEDERAL WAY | Acute Care Hospitals | 3 | Yes |
| ST JOSEPH HOSPITAL BELLINGHAM | BELLINGHAM | Acute Care Hospitals | 4 | Yes |
| ST JOSEPH MEDICAL CENTER TACOMA | TACOMA | Acute Care Hospitals | 4 | Yes |
| SUMMIT PACIFIC MEDICAL CENTER ELMA | ELMA | Critical Access Hospitals | 2 | Yes |
| SWEDISH EDMONDS HOSPITAL EDMONDS | EDMONDS | Acute Care Hospitals | 2 | Yes |
| SWEDISH ISSAQUAH ISSAQUAH | ISSAQUAH | Acute Care Hospitals | 5 | Yes |
| SWEDISH MEDICAL CENTER SEATTLE | SEATTLE | Acute Care Hospitals | 4 | Yes |
| SWEDISH MEDICAL CENTER / CHERRY HILL SEATTLE | SEATTLE | Acute Care Hospitals | 4 | Yes |
| TACOMA GENERAL ALLENMORE HOSPITAL TACOMA | TACOMA | Acute Care Hospitals | 2 | Yes |
| THREE RIVERS HOSPITAL BREWSTER | BREWSTER | Critical Access Hospitals | N/A | Yes |
| TRI-STATE MEMORIAL HOSPITAL CLARKSTON | CLARKSTON | Critical Access Hospitals | 3 | Yes |
| TRIOS HEALTH KENNEWICK | KENNEWICK | Acute Care Hospitals | 1 | Yes |
| UNIVERSITY OF WASHINGTON MEDICAL CTR SEATTLE | SEATTLE | Acute Care Hospitals | 3 | Yes |
| VALLEY MEDICAL CENTER RENTON | RENTON | Acute Care Hospitals | 2 | Yes |
| VIRGINIA MASON MEDICAL CENTER SEATTLE | SEATTLE | Acute Care Hospitals | 5 | Yes |
| WELLFOUND BEHAVIORAL HEALTH HOSPITAL TACOMA | TACOMA | Psychiatric | N/A | No |
| WHIDBEYHEALTH MEDICAL CENTER COUPEVILLE | COUPEVILLE | Critical Access Hospitals | 1 | Yes |
| WHITMAN HOSPITAL AND MEDICAL CENTER COLFAX | COLFAX | Critical Access Hospitals | N/A | Yes |
| WILLAPA HARBOR HOSPITAL SOUTH BEND | SOUTH BEND | Critical Access Hospitals | N/A | Yes |
| YAKIMA VALLEY MEMORIAL YAKIMA | YAKIMA | Acute Care Hospitals | 1 | Yes |