Quest Diagnostics obtains diagnosis information from the ordering physicians office. If your insurance carrier denied your claim due to the diagnosis code, please contact your physicians office.
Ways to pay your bill
- Online
- By mail
- By phone at 1.866.MYQUEST (1.866.697.8378)
Frequently asked questions about billing
The bill you received is for laboratory services provided by Quest Diagnostics, which were ordered by your physician. This bill is for laboratory testing fees only and is separate from any bill you may have received from your physician and/or paid at your physicians office.
Although you may not have physically visited a Quest Diagnostics location, your physician may have sent your specimen out to a Quest Diagnostics laboratory to be tested.
Please refer to the message on your Quest Diagnostics bill or the Explanation of Benefits (EOB) from your insurance carrier for more specific information about why you received an bill.
A few reasons you may have received a bill include, but are not limited to, the following:
- Insurance information was not received or the wrong insurance information was received on your test order
- The insurance carrier processed the claim and denied payment
- The insurance carrier processed the claim and applied the balance to your co-pay or deductible
- The insurance carrier did not respond to the claim.
Please send the requested information to the address or fax number listed on your bill. You can also call the Customer Service phone number listed on your bill, or contact our online Customer Service. If the message on your bill indicates that your insurance carrier needs more information from you in order to process your claim, please contact your insurance carrier directly.
Click on the highlighted term to view an example of the Quest Diagnostics bill, which contains definitions for many of the terms used on it. This example may look somewhat different from your bill depending on where your tests were performed, but the definitions of terms may be helpful to you
If you would like further assistance, please call the Customer Service phone number listed on your bill or contact online Customer Service.
Quest and insurance
To give you access to advanced testing options and trusted results, Quest partners with some of the biggest names in health insurance, like UnitedHealthcare®, Aetna®, Humana®, Cigna®, and most Anthem® and BlueCross BlueShield® plans—just to name a few.
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Contact billing
Call us at 1.866.MYQUEST (1.866.697.8378), or send us an email to chat with a customer service rep.
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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.
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