| BELLEVUE DIALYSIS CENTER | BELLEVUE |
| CAMP ORKILA | EASTSOUND |
| CENTRAL WASHINGTON HOSPITAL DIALYSIS CENTER | WENATCHEE |
| CHINOOK KIDNEY CENTER | RICHLAND |
| DSI DOWNTOWN SPOKANE RENAL CENTER | SPOKANE |
| DSI NORTH SPOKANE RENAL CENTER | SPOKANE |
| DSI SPOKANE RENAL CENTER | SPOKANE |
| ELLENSBURG DIALYSIS CENTER | ELLENSBURG |
| EVERETT DIALYSIS CENTER | EVERETT |
| FEDERAL WAY COMMUNITY DIALYSIS CENTER | FEDERAL WAY |
| FMC ABERDEEN | ABERDEEN |
| FMC CHEHALIS | CHEHALIS |
| FMC COLUMBIA BASIN | KENNEWICK |
| FMC COLVILLE | COLVILLE |
| FMC LACEY | OLYMPIA |
| FMC LEAH LAYNE DIALYSIS CENTER | OTHELLO |
| FMC LONGVIEW | LONGVIEW |
| FMC MOSES LAKE DIALYSIS UNIT | MOSES LAKE |
| FMC NORTHPOINTE DIALYSIS UNIT | SPOKANE |
| FMC OMAK DIALYSIS CENTER | OMAK |
| FMC SHELTON | SHELTON |
| FMC SPOKANE KIDNEY CENTER | SPOKANE |
| FMC VALLEY DIALYSIS UNIT | SPOKANE |
| GRAHAM DIALYSIS CENTER | GRAHAM |
| GREATER PUYALLUP DIALYSIS CENTER | PUYALLUP |
| KENT COMMUNITY DIALYSIS CENTER | KENT |
| LAKEWOOD COMMUNITY DIALYSIS CENTER | LAKEWOOD |
| MID-COLUMBIA KIDNEY CENTER | PASCO |
| MILL CREEK DIALYSIS CENTER | BOTHELL |
| MT ADAMS KIDNEY CENTER | SUNNYSIDE |
| MT BAKER KIDNEY CENTER | BELLINGHAM |
| NKC AUBURN KIDNEY CENTER | AUBURN |
| NKC BROADWAY KIDNEY CENTER | SEATTLE |
| NKC KENT KIDNEY CENTER | KENT |
| NKC LAKE CITY KIDNEY CENTER | LAKE FOREST PARK |
| NKC LAKE WASHINGTON KIDNEY CENTER | BELLEVUE |
| NKC PORT ANGELES KIDNEY CENTER | PORT ANGELES |
| NKC RENTON KIDNEY CENTER | RENTON |
| NKC SCRIBNER KIDNEY CENTER | SEATTLE |
| NKC SEATAC KIDNEY CENTER | SEATAC |
| NKC SEATTLE KIDNEY CENTER | SEATTLE |
| NKC SNOQUALMIE RIDGE KIDNEY CENTER | SNOQUALMIE |
| NKC TOTEM LAKE KIDNEY CENTER | KIRKLAND |
| NKC WEST SEATTLE KIDNEY CENTER | SEATTLE |
| OLYMPIA DIALYSIS CENTER | OLYMPIA |
| OLYMPIC PENINSULA KC - SOUTH KITSAP | PORT ORCHARD |
| OLYMPIC PENINSULA KIDNEY CENTER - NORTH | POULSBO |
| OLYMPIC PENINSULA KIDNEY CENTER NORTHWEST | PORT TOWNSEND |
| OLYMPIC PENINSULA KIDNEY CENTER | BREMERTON |
| OLYMPIC VIEW DIALYSIS CENTER | SEATTLE |
| PANORAMA DIALYSIS | DEER PARK |
| PARKLAND DIALYSIS CENTER | TACOMA |
| PEACEHEALTH DIALYSIS CENTER | LONGVIEW |
| PNRS FT VANCOUVER | VANCOUVER |
| PNRS SALMON CREEK | VANCOUVER |
| PUGET SOUND KC SOUTH | MOUNTLAKE TERRACE |
| PUGET SOUND KIDNEY CENTER SMOKEY POINT | ARLINGTON |
| PUGET SOUND KIDNEY CENTER WHIDBEY ISLAND | OAK HARBOR |
| PUGET SOUND KIDNEY CENTER | EVERETT |
| PUYALLUP COMMUNITY DIALYSIS CENTER | PUYALLUP |
| QUALICENTERS - WALLA WALLA LLC | WALLA WALLA |
| SEATTLE CHILDRENS HOSPITAL DIALYSIS | SEATTLE |
| SEAVIEW DIALYSIS CENTER | LONG BEACH |
| SKAGIT VALLEY KIDNEY CENTER | MOUNT VERNON |
| ST JOSEPH DIALYSIS CENTER GIG HARBOR | GIG HARBOR |
| ST JOSEPH MEDICAL CENTER NEPHROLOGY SERVICES | TACOMA |
| TACOMA DIALYSIS CENTER | TACOMA |
| TRI-STATE MEMORIAL HOSPITAL INC DIALYSIS UNIT | CLARKSTON |
| UNION GAP DIALYSIS CENTER | UNION GAP |
| VANCOUVER DIALYSIS CENTER | VANCOUVER |
| WESTWOOD DIALYSIS CENTER | SEATTLE |
| WHIDBEY ISLAND DIALYSIS CENTER | OAK HARBOR |
| YAKIMA DIALYSIS CENTER | YAKIMA |