Providers Overview Provider Service Representatives - Washington Provider Service Representatives: Washington Contact your PacificSource Provider Service team at the phone and email links below. Lisa Carter 253-650-1921Lisa.Carter@PacificSource.com Southwestern Counties: Clallam Clark Cowlitz Grays Harbor Jefferson Mason Kitsap Klickitat Pacific Skamania Wahkiakum Nicki Starry 509-505-6453Nicki.Starry@PacificSource.com Eastern Counties: Adams Asotin Benton Chelan Columbia Douglas Ferry Franklin Garfield Grant Kittitas Lincoln Okanogan Pend Oreille Spokane Stevens Walla Walla Whitman Yakima Branden McCloud 253-830-3567Branden.McCloud@PacificSource.com Western Counties: Island King Lewis Pierce San Juan Skagit Snohomish Thurston Whatcom Washington Provider Services WaProvNet@PacificSource.com Service area: Specialist TTY: 711. We accept all relay calls.