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Seattle Indian Health Board For the Love of Native People Cultural healthcare and human services for our people today. Advocacy and data research for our people of the future. Explore Integrated Services Programs Featured News and Events Featured Thunderbird Treatment Center Seattle Indian Health Board will reopen Thunderbird Treatment Center in 2025 as a 92bed residential facility making it Washingtons largest treatment center. This expansion will increase inpatient capacity in King County by 62 enabling us to address the disproportionately high rates of overdose and substance use disorder impacting Native communities in the region.