| ADAMS COUNTY HOSPITAL 2 | Organization | RITZVILLE |
| CENTRAL WASHINGTON HEALTH SERVICES ASSOCIATION | Organization | OROVILLE |
| CENTRAL WASHINGTON HEALTH SERVICES ASSOCIATION | Organization | BREWSTER |
| CENTRAL WASHINGTON HEALTH SERVICES ASSOCIATION | Organization | EAST WENATCHEE |
| CENTRAL WASHINGTON HEALTH SERVICES ASSOCIATION | Organization | WENATCHEE |
| CENTRAL WASHINGTON HEALTH SERVICES ASSOCIATION | Organization | WINTHROP |
| CENTRAL WASHINGTON HEALTH SERVICES ASSOCIATION | Organization | MOSES LAKE |
| CENTRAL WASHINGTON HEALTH SERVICES ASSOCIATION | Organization | TONASKET |
| CENTRAL WASHINGTON HEALTH SERVICES ASSOCIATION | Organization | CASHMERE |
| CENTRAL WASHINGTON HEALTH SERVICES ASSOCIATION | Organization | ROYAL CITY |
| CENTRAL WASHINGTON HEALTH SERVICES ASSOCIATION | Organization | EPHRATA |
| CENTRAL WASHINGTON HEALTH SERVICES ASSOCIATION | Organization | OMAK |
| CENTRAL WASHINGTON HEALTH SERVICES ASSOCIATION | Organization | WATERVILLE |
| CHEHALIS CHILDREN'S CLINIC PS | Organization | CHEHALIS |
| CHELAN COUNTY PUBLIC HOSPITAL DISTRICT NO 2 | Organization | CHELAN |
| CHELAN COUNTY PUBLIC HOSPITAL DISTRICT NO. 1 | Organization | LEAVENWORTH |
| CLALLAM COUNTY PUBLIC HOSPITAL DISTRICT NO 1 | Organization | FORKS |
| CLALLAM COUNTY PUBLIC HOSPITAL DISTRICT NO 1 | Organization | FORKS |
| CLALLAM COUNTY PUBLIC HOSPITAL DISTRICT NO 1 | Organization | CLALLAM BAY |
| COLUMBIA CAPITAL MEDICAL CENTER, LP | Organization | ELMA |
| COLUMBIA COUNTY HOSPITAL DISTRICT | Organization | WAITSBURG |
| COLUMBIA COUNTY HOSPITAL DISTRICT | Organization | DAYTON |
| COLVILLE MEDICAL CENTER PS | Organization | COLVILLE |
| COLVILLE MEDICAL CENTER PS | Organization | COLVILLE |
| DOUGLAS, GRANT, LINCOLC AND OKANOGAN COUTIES PUBLIC HOSP. DIST. #6 | Organization | GRAND COULEE |
| DOUGLAS, GRANT, LINCOLN & OKANOGAN COUNTIES PUBLIC HOSPITAL DISTRICT 6 | Organization | COULEE CITY |
| DOUGLAS, GRANT, LINCOLN & OKANOGAN COUNTIES PUBLIC HOSPITAL DISTRICT 6 | Organization | GRAND COULEE |
| DOUGLAS, GRANT, LINCOLN, AND OKANOGAN COUNTIES PUBLIC HOSP. DIST. #6 | Organization | GRAND COULEE |
| ELLENSBURG PEDIATRICS PLLC | Organization | ELLENSBURG |
| EVENTIDE HEALTH PLLC | Organization | FRIDAY HARBOR |
| FAMILY CARE NETWORK PLLC | Organization | FERNDALE |
| FAMILY CARE NETWORK PLLC | Organization | EVERSON |
| FAMILY CARE NETWORK PLLC | Organization | BLAINE |
| FAMILY CARE NETWORK PLLC | Organization | ANACORTES |
| FAMILY CARE NETWORK PLLC | Organization | LYNDEN |
| FERRY COUNTY PUBLIC HOSPITAL DISTRICT NO 1 | Organization | REPUBLIC |
| FERRY COUNTY PUBLIC HOSPITAL DISTRICT NO 1 | Organization | CURLEW |
| GARFIELD COUNTY HOSPITAL DISTRICT | Organization | POMEROY |
| GARFIELD COUNTY MEMORIAL HOSPITAL DISTRICT | Organization | POMEROY |
| GRANT CO PUBLIC HOSPITAL DISTRICT 3 | Organization | EPHRATA |
| GRANT COUNTY HOSPITAL DISTRICT NO. 2 | Organization | QUINCY |
| GRANT COUNTY PUBLIC HOSPITAL DISTRICT 1 | Organization | MOSES LAKE |
| GRANT COUNTY PUBLIC HOSPITAL DISTRICT 1 | Organization | MOSES LAKE |
| GRAYS HARBOR COMMUNITY HOSPITAL | Organization | MONTESANO |
| GRAYS HARBOR COMMUNITY HOSPITAL | Organization | HOQUIAM |
| GRAYS HARBOR COMMUNITY HOSPITAL | Organization | OCEAN SHORES |
| GRAYS HARBOR COMMUNITY HOSPITAL | Organization | WESTPORT |
| GRAYS HARBOR COMMUNITY HOSPITAL | Organization | ABERDEEN |
| GRAYS HARBOR COUNTY PUBLIC HOSPITAL DISTRICT NO 1 | Organization | ELMA |
| GRAYS HARBOR COUNTY PUBLIC HOSPITAL DISTRICT NO. 1 | Organization | ELMA |
| GRAYS HARBOR COUNTY PUBLIC HOSPITAL DISTRICT NO. 1 | Organization | ELMA |
| GRAYS HARBOR COUNTY PUBLIC HOSPITAL DISTRICT NO. 1 | Organization | MCCLEARY |
| HARRISON MEDICAL CENTER | Organization | FORKS |
| HOODSPORT FAMILY CLINIC,P.S. | Organization | HOODSPORT |
| JEFFERSON COUNTY PUBLIC HOSPITAL DISTRICT NO 2 | Organization | PORT TOWNSEND |
| JEFFERSON COUNTY PUBLIC HOSPITAL DISTRICT NO 2 | Organization | PORT TOWNSEND |
| JEFFERSON COUNTY PUBLIC HOSPITAL DISTRICT NO 2 | Organization | QUILCENE |
| JEFFERSON COUNTY PUBLIC HOSPITAL DISTRICT NO 2 | Organization | PORT TOWNSEND |
| JEFFERSON COUNTY PUBLIC HOSPITAL DISTRICT NO 2 | Organization | PORT LUDLOW |
| JEFFERSON COUNTY PUBLIC HOSPITAL DISTRICT NO 2 | Organization | PORT TOWNSEND |