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Quest Diagnostics

Melville Laboratory Facility

50 Republic Road

Melville

11747

NY

United States

40.7572159

-73.4150291999

(866) 697-8378

Monday: 8:30 to 8:00

Tuesday: 8:30 to 8:00

Wednesday: 8:30 to 8:00

Thursday: 8:30 to 8:00

Friday: 8:30 to 8:00

Saturday: 8:00 to 2:30

Sunday: CLOSED

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.