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Telephone
206-987-2173
866-987-2000 (Toll free)
206-985-3252 (Fax)
Address
4800 Sand Point Way NE
Seattle, WA 98105
Mailing Address
MS A-4902
PO Box 5371
Seattle, WA 98145-5005
Hours
Monday through Friday, 8 a.m. to 4 p.m.
Provider or Researcher Name: