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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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Clinical experts and education

Clinical Education Center

Visit our Clinical Education Center for the latest information on our educational webinars and podcasts, scientific publications, and conference presentations.

Consult with one of the most experienced clinical diagnostics teams in the industry

  • 1.866.MYQUEST (1.866.697.8378) for the next available MD or PhD
  • 1.866.GENE.INFO (1.866.436.3463) for the next available board-certified medical geneticist or lab-based genetic counselor. If calling from outside the U.S. call (678) 406-1198.
  • 1.877.40.RXTOX (1.877.407.9869) for the next available toxicology specialist

Clinical Education Center

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Clinical experts & education