| ALLENMORE HOSPITAL | TACOMA |
| AUBURN REGIONAL MEDICAL CENTER | AUBURN |
| BELLINGHAM SURGERY CENTER, INC | BELLINGHAM |
| CAPITAL MEDICAL CENTER | OLYMPIA |
| CASCADE MEDICAL CENTER | LEAVENWORTH |
| CASCADE VALLEY HOSPITAL | ARLINGTON |
| CENTRAL WASHINGTON HOSPITAL | WENATCHEE |
| CENTRALIA GENERAL HOSPITAL | CENTRALIA |
| CHELSEA GROUP HOME | DUVALL |
| COMMUNITY HOSPICE OF THE NORTHWEST | BREMERTON |
| COMMUNITY HOSPICE-SEATTLE | SEATTLE |
| COMMUNITY HOSPITAL HOSPICE | ABERDEEN |
| COMMUNITY HOSPITAL | YAKIMA |
| COULEE COMMUNITY HOSPITAL | GRAND COULEE |
| DAYTON GENERAL HOSPITAL | DAYTON |
| DEACONESS HOSPITAL | SPOKANE |
| DEER PARK HEALTH CENTER AND HOSPITAL | DEER PARK |
| DOCTORS HOSPITAL OF TACOMA,THE | TACOMA |
| EAST ADAMS RURAL HOSPITAL | RITZVILLE |
| EASTERN STATE HOSPITAL | MEDICAL LAKE |
| EVERGREEN HOSPICE SERVICES | KIRKLAND |
| EVERGREEN HOSPITAL MEDICAL CENTER | KIRKLAND |
| FAIRFAX HOSPITAL | KIRKLAND |
| FERRY COUNTY MEMORIAL HOSPITAL | REPUBLIC |
| FRANCES HADDON MORGAN CENTER | BREMERTON |
| FRANCISCAN HOSPICE | UNIVERSITY PLACE |
| GARFIELD COUNTY MEMORIAL | POMEROY |
| GOOD SAMARITAN HOSPICE | PUYALLUP |
| GRAYS HARBOR COMMUNITY HOSPITAL | ABERDEEN |
| GROUP HEALTH CENTRAL HOSPITAL | SEATTLE |
| GROUP HEALTH COOPERATIVE HOSPI | SEATTLE |
| HARBORVIEW MEDICAL CENTER | SEATTLE |
| HARRISON MEDICAL CENTER | BREMERTON |
| HIGHLINE MEDICAL CENTER | BURIEN |
| HOME HEALTH AND HOSPICE OF SE WASHINGTON | PULLMAN |
| HORIZON HOSPICE LLC | SPOKANE |
| HOSPICE OF CLARK COUNTY | VANCOUVER |
| HOSPICE OF KITSAP COUNTY | SILVERDALE |
| HOSPICE OF SEATTLE | SEATTLE |
| HOSPICE OF SPOKANE | SPOKANE |
| HOSPICE SOUTHWEST | VANCOUVER |
| INLAND AMBULATORY SURGERY CENTER | SPOKANE |
| ISLAND HOSPITAL | ANACORTES |
| JEFFERSON HEALTHCARE HOSPITAL | PORT TOWNSEND |
| KADLEC REGIONAL MEDICAL CENTER | RICHLAND |
| KENNEWICK GENERAL HOSPITAL | KENNEWICK |
| KITTITAS VALLEY COMMUNITY HOSPITAL | ELLENSBURG |
| KLICKITAT VALLEY HOSPITAL | GOLDENDALE |
| LAKE CHELAN COMMUNITY HOSPITAL | CHELAN |
| LAKELAND VILLAGE | MEDICAL LAKE |
| LEGACY SALMON CREEK MEDICAL CENTER | VANCOUVER |
| LINCOLN PARK GROUP HOME | SEATTLE |
| LOURDES COUNSELING CENTER | RICHLAND |
| LOURDES MEDICAL CENTER | PASCO |
| LOWER VALLEY HOSPICE | SUNNYSIDE |
| MARK REED HOSPITAL AND HEALTHCARE CLINIC | MCCLEARY |
| MARY BRIDGE CHILDREN'S HOSPITAL | TACOMA |
| MASON GENERAL HOSPITAL AND FAMILY OF CLINICS | SHELTON |
| MEDICAL DENTAL HOSPITAL | SEATTLE |
| MID VALLEY HOSPITAL | OMAK |
| MONTICELLO MEDICAL CENTER | LONGVIEW |
| MORTON GENERAL HOSPITAL | MORTON |
| MOUNT LINTON HOSPITAL | METALINE FALLS |
| MULTICARE GOOD SAMARITAN HOSPITAL | PUYALLUP |
| MULTICARE HOSPICE AND PALLIATIVE CARE SERVICES | TACOMA |
| NORTHGATE GENERAL HOSPITAL | SEATTLE |
| NORTHWEST HOSPITAL | SEATTLE |
| OCEAN BEACH HOSPITAL | ILWACO |
| OKANOGAN-DOUGLAS DISTRICT HOSPITAL | BREWSTER |
| OLYMPIC MEDICAL CENTER | PORT ANGELES |
| OTHELLO COMMUNITY HOSPITAL | OTHELLO |
| OVERLAKE HOSPITAL MEDICAL CENTER | BELLEVUE |
| PACIFIC MEDICAL CENTER | SEATTLE |
| PEACEHEALTH SOUTHWEST MEDICAL CENTER | VANCOUVER |
| PEACEHEALTH ST JOSEPH MEDICAL CENTER | BELLINGHAM |
| PEACHEALTH ST JOHN MEDICAL CENTER | LONGVIEW |
| PLASTIC SURGICENTER OF OLYMPIA | OLYMPIA |
| PROVIDENCE CENTRALIA HOSPITAL | CENTRALIA |
| PROVIDENCE HOLY FAMILY HOSPITAL | SPOKANE |
| PROVIDENCE HOSPITAL | EVERETT |
| PROVIDENCE MOUNT CARMEL HOSPITAL | COLVILLE |
| PROVIDENCE REGIONAL MEDICAL CENTER EVERETT | EVERETT |
| PROVIDENCE SACRED HEART MEDICAL CENTER | SPOKANE |
| PROVIDENCE ST MARY MEDICAL CENTER | WALLA WALLA |
| PROVIDENCE ST PETER HOSPITAL | OLYMPIA |
| PUGET SOUND BEHAVIORAL HEALTH | TACOMA |
| PUGET SOUND HOSPITAL | TACOMA |
| PULLMAN REGIONAL HOSPITAL | PULLMAN |
| QUINCY VALLEY HOSPITAL | QUINCY |
| RAINIER SCHOOL PAT E | BUCKLEY |
| REG HOSP FOR RESP AND COMPLEX CARE | TUKWILA |
| RIVERTON GENERAL HOSPITAL | SEATTLE |
| ROCKY BAY HEALTH CARE FACILITY | GIG HARBOR |
| SAINT CLARE HOSPITAL | LAKEWOOD |
| SAMARITAN HOSPITAL | MOSES LAKE |
| SEATTLE CANCER CARE ALLIANCE | SEATTLE |
| SEATTLE CHILDREN'S HOSPITAL | SEATTLE |
| SEATTLE VA MEDICAL CENTER (VA PUGIT SOUND HEALTHCARE SYSTEM) | SEATTLE |
| SHOREWOOD OSTEOPATHIC HOSPITAL | SEATTLE |
| SKAGIT HOSPICE SERVICES, LLC | MOUNT VERNON |
| SKAGIT VALLEY HOSPITAL | MOUNT VERNON |
| SKYLINE HOSPITAL | WHITE SALMON |
| SNOQUALMIE VALLEY HOSPITAL | SNOQUALMIE |
| SPOKANE VA MEDICAL CENTER | SPOKANE |
| ST ANTHONY HOSPITAL | GIG HARBOR |
| ST ELIZABETH HOSPITAL | ENUMCLAW |
| ST FRANCIS COMMUNITY HOSPITAL | FEDERAL WAY |
| ST JOSEPH COMMUNITY HOSPITAL | VANCOUVER |
| ST JOSEPH HOSPITAL | ABERDEEN |
| ST JOSEPH MEDICAL CENTER | TACOMA |
| ST LUKES GENERAL HOSPITAL | BELLINGHAM |
| ST LUKES MEMORIAL HOSPITAL | SPOKANE |
| ST LUKES REHABILITATION INSTITUTE | SPOKANE |
| SUNNYSIDE COMMUNITY HOSPITAL | SUNNYSIDE |
| SWEDISH EDMONDS HOSPITAL | EDMONDS |
| SWEDISH ISSAQUAH | ISSAQUAH |
| SWEDISH MEDICAL CENTER/CHERRY HILL | SEATTLE |
| SWEDISH MEDICAL CENTER | SEATTLE |
| TACOMA GENERAL ALLENMORE HOSPITAL | TACOMA |
| TOPPENISH COMMUNITY HOSPITAL | TOPPENISH |
| TRI-CITIES CHAPLAINCY HOSPICE | KENNEWICK |
| TRI-STATE MEMORIAL HOSPITAL | CLARKSTON |
| UNITED GENERAL HOSPITAL | SEDRO WOOLLEY |
| UNIVERSITY OF WASHINGTON MEDICAL CTR | SEATTLE |
| VALLEY GENERAL HOSPITAL | MONROE |
| VALLEY HOSPITAL | SPOKANE |
| VALLEY MEDICAL CENTER | RENTON |
| VALLEY MEMORIAL HOSPITAL | SUNNYSIDE |
| VIRGINIA MASON MEDICAL CENTER | SEATTLE |
| VISITING NURSE SERVICES OF NW-HOSPICE | SEATTLE |
| WALLA WALLA COMMUNITY HOSPICE | WALLA WALLA |
| WALLA WALLA GENERAL HOSPITAL | WALLA WALLA |
| WALLA WALLA VA MEDICAL CENTER | WALLA WALLA |
| WASHINGTON CASCADE SURGERY CTR, LLC | YAKIMA |
| WENATCHEE VALLEY HOSPITAL | WENATCHEE |
| WEST SEATTLE COMMUNITY HOSPITAL | SEATTLE |
| WEST SEATTLE PSYCHIATRIC HOSPITAL | SEATTLE |
| WESTERN STATE HOSPITAL | TACOMA |
| WHATCOM HOSPICE | BELLINGHAM |
| WHIDBEY GENERAL HOSPITAL | COUPEVILLE |
| WHITMAN HOSPITAL AND MEDICAL CENTER | COLFAX |
| WILLAPA HARBOR HOSPITAL | SOUTH BEND |
| YAKIMA REGIONAL MEDICAL AND CARDIAC CENTER | YAKIMA |
| YAKIMA VALLEY MEMORIAL HOSPITAL | YAKIMA |