Confidential results No doctor visit required Results in 1-3 days 4,500+ locations
Quest Diagnostics

Lab Testing at Quest Diagnostics - Seattle Madison - Employer Drug Testing Not Offered

Quest Diagnostics Patient Service Center in Seattle, WA 98104.

Order Lab Tests for Collection at This Location

Browse All Tests

Popular tests at this location:

Address

1101 Madison St Suite 1210
Seattle, WA 98104
King County

Hours

Monday7:00 AM – 4:00 PM
Tuesday7:00 AM – 4:00 PM
Wednesday7:00 AM – 4:00 PM
Thursday7:00 AM – 4:00 PM
Friday7:00 AM – 4:00 PM
SaturdayClosed
SundayClosed

Nearby alternatives

More lab options around Seattle

About this location

Quest Diagnostics Patient Service Center. 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.