Community Health Plan of Washington (CHPW) was founded in 1992 by Washington’s community health centers. CHPW is committed to Washington's health. To enroll in a Community Health Plan of Washington Medicaid or Medicare Advantage plan, you must be eligible and live in our Medicare (Adams, Benton, Chelan, Clallam, Clark, Cowlitz, Douglas, Franklin, Grant, Gray's Harbor, Jefferson, King, Kitsap, Lewis, Mason, Okanogan, Pacific, Pierce, Skagit, Snohomish, Spokane, Stevens, Thurston, Wahkiakum, Walla Walla, Whatcom, and Yakima counties in Washington State) or Medicaid (all counties in Washington State) service area. This is not a complete description of benefit. Please contact us for more information.