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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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Quest Diagnostics
photo of Elizabeth Holland

Elizabeth Holland, RN, BSN, MFA

Director of Medical Affairs, Medical Science Liaison; oncology

Emergency medicine & Oncology

About

Liz joined Quest in 2022 from a small start-up in the cutaneous oncology space where she was a Senior Medical Science Liaison. She currently supports the oncology portfolio at the national level for Quest Diagnostics.

Specialty

Emergency medicine & Oncology

Board Certifications

Registered Nurse

Education

The Johns Hopkins University, University of Maryland School of Nursing, University of Baltimore
About
Specialty
Board Certifications
Education

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.