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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 31, 2025
  • Closed on January 1, 2026


Have a healthy, happy holiday!

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Quest Diagnostics

Resources

At Quest Diagnostics, how we conduct business and contribute to our society, environment and communities is critical to our future success and growth. This page is intended to help investors and stakeholders locate commonly requested information in alignment with Corporate Responsibility topics.

Annual Reports

Community and Employee Engagement

Environmental Sustainability / Occupational Health & Safety

Governance, Ethics & Compliance

Culture & Belonging

Contacts:

Transparency in Healthcare Coverage

Our company

Quest® is the brand name used for services offered by Quest Diagnostics Incorporated and its affiliated companies. Quest Diagnostics Incorporated and certain affiliates are CLIA-certified laboratories that provide HIPAA-covered services.  Other affiliates operated under the Quest® brand, such as Quest Consumer Inc., do not provide HIPAA-covered services. 

 

Quest®, Quest Diagnostics®, any associated logos, and all associated Quest Diagnostics registered or unregistered trademarks are the property of Quest Diagnostics. All third-party marks—® and ™—are the property of their respective owners. © 2025 Quest Diagnostics Incorporated. All rights reserved. Image content features models and is intended for illustrative purposes only.