Quest Diagnostics Customer Service Contacts

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Quest Diagnostics provides laboratory diagnostic testing and services to patients, physicians, hospitals, health insurers, employers and government agencies.

Responsiveness rating


What you need to know about Quest Diagnostics

The biggest problem customers have with Quest (the only problem, as far as we can tell) is overbilling. Quest customers complain about getting overcharged for their lab work. We've covered it before and we will probably cover it again.

How to resolve a problem with Quest Diagnostics

The executive contacts we've researched are fairly responsive. If they aren't, please let us know.


500 Plaza Drive
Secaucus, NJ 07094

Phone Contacts

Main: 1-866-MyQuest
Customer Service: 1-866-697-8378

Email Contacts

[email protected]

Customer Service Resources

Social Media Contacts


Executive Contacts

Primary Contact
Monica Toney
Quest Experience Support Senior Manager
500 Plaza Drive
Secaucus, NJ 07094
[email protected]

Chief Executive
James Davis
President and Chief Executive Officer
500 Plaza Drive
Secaucus, NJ 07094
[email protected]

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