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Quest Diagnostics

Lab Testing at Fastest Labs Of South Seattle

Quest partner location in Seattle, WA 98134.

Partner Location

This location is part of Quest's partner network. Services and availability may differ from a standard Quest Patient Service Center. Please call 206-566-5803 before visiting to confirm they accept your lab order.

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Note: tests available at this location depend on its services. Confirm by calling before visiting.

Address

3232 1st Ave S
Seattle, WA 98134
King County
206-566-5803

Hours

Monday9:00 AM – 5:00 PM
Tuesday9:00 AM – 5:00 PM
Wednesday9:00 AM – 5:00 PM
Thursday9:00 AM – 5:00 PM
Friday9:00 AM – 5:00 PM
SaturdayClosed
SundayClosed

Nearby alternatives

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About this location

Quest partner location. Quest Diagnostics operates one of the largest networks of clinical laboratories in the United States, offering a wide range of diagnostic tests for patients, physicians, and employers.

Listing last updated 2026-04-25.