Quest Diagnostics Customer Service & Support Phone Number

This listing is all about the customer support information of Quest Diagnostics including support phone number, email address and various embedded contact forum links. Meanwhile just let us know the exact feedback that you received from Quest Diagnostics customer support. This feedback info is always been helpful for us and other customers. Quest Diagnostics is accredited as a healthcare leader that provides services in clinical laboratory services. It initially establishes in 1967 as Metropolitan Pathology Laboratory, Inc and now the organization grew beyond United States. It now rooted services to other areas such in United Kingdom, Mexico, Brazil, Puerto Rico and India. Service achievement credited to  list among Fortune 500, it had total financial asset of 10 million.

Phone Number: 800-631-1390

How to connect to a live technician:
  • Continue speaking the word “agent” until your call gets transferred
Working Hours of Operation:
  • Mon-Fri: 8 am – 5 pm
Email Information:
Contact Customer service link:
Company URL:

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