Kaiser Westside Medical Center is a hospital in the Tanasbourne neighborhood in Hillsboro in the U.S. state of Oregon. Opened in August 2013 with 126 hospital beds, the Kaiser Permanente facility is planned to later expand to 174 beds. It was designed by Ellerbe Becket Architects and Petersen Kolberg & Associates Architects/Planners. The $220 million hospital includes Kaiser's Sunset Medical Office that opened in 1987 on the west side of the Portland metropolitan area.