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Holiday schedule

Quest Diagnostics Patient Service Centers will have modified hours during the holiday season.

  • Closing early at 12:00pm on December 24, 2025
  • Closed on December 25, 2025
  • Closing early at 12:00pm on December 31, 2025
  • Closed on January 1, 2026


Have a healthy, happy holiday!

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Seattle, WA licensure

Phenopath Laboratories
1737 Airport Way South, Ste 201
Seattle, WA 98134

Licenses Expires License/Permit #
CAP
03-11-26 6884001
California 09-23-26 CDS00800090
Maryland Non-Expiring 937
New York 06-30-26 7953
Pennsylvania 08-15-26 36667
Rhode Island 12-30-25 LCO00675
Washington 06-30-27 MTSA.FS.000036414

The state license for laboratories within Washington are in lieu of a CLIA certificate.