Ways to Pay Your Bill
- Online (This link will take you to a Quest Diagnostic online payment portal where you can pay both Quest AND DLO lab invoices)
- By mail
- By phone at 1.888.241.7742
Updating Insurance
- To pay a DLO or Quest bill and/or update your insurance, click here. *Note: You will need the bill number, patient's date of birth, and the patient's zip code.
By clicking the links to pay your bill or update your insurance, you will be redirected to the Quest Billing website. This website uses cookies for improvement of quality and user experience. By continuing to this site, you confirm your awareness and acceptance of our use of cookies. For more information or to opt out of the use of cookies, see Quest's Cookies Notice.
Billing Questions
Do you have a question regarding a DLO bill or invoice? Call 1-888-241-7742 (option 5) and speak to a billing specialist today. You may also email the billing department by clicking the button below:
Email Billing Customer Service
Frequently Asked Billing Questions
Who do I call if I have billing questions or if I need to update my insurance?
If you received a bill and need to update your insurance, you can do so online through our affiliation with Quest Diagnostics. All you need is a copy of your current bill.
Insurance updates or questions about your bill can be directed to our billing department at 1-888-241-7742.
Who is Quest Diagnostics?
DLO is affiliated with Quest Diagnostics, the world's leading provider of diagnostic testing, information and services that patients and doctors need to make better health care decisions. The company offers the broadest access to diagnostic testing services through its network of laboratories and patient service centers, and provides interpretive consultation through its extensive medical and scientific staff. Quest Diagnostics is a pioneer in developing innovative new diagnostic tests and advanced health care information technology solutions that help improve patient care.
Why have I received a bill from DLO or Quest Diagnostics?
The bill you received is for laboratory services provided by DLO or 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 physician's office.
Although you may not have physically visited a DLO or Quest Diagnostics location, your physician may have sent your specimen out to one of our laboratories to be tested.
Please refer to the message on your bill or the Explanation of Benefits (EOB) from your insurance carrier for more specific information about why you received a 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
I received a bill requesting additional information. What should I do?
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 DLO's Customer Service or Billing team through our website. 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.
Where does DLO obtain the diagnosis information related to my claim?
DLO obtains diagnosis information from the ordering physician's office. If your insurance carrier denied your claim due to the diagnosis code, please contact your physician's office.
Why am I being charged a draw fee?
A draw fee is charged when a patient goes to one of our Patient Service Centers (PSC) for the drawing of a sample. Insurance may cover this fee. However, patients whose insurance does not cover the draw fee and uninsured patients are responsible for payment of the draw fee.
Why am I being charged for additional testing which was not on my original test order (requisition)?
There are 2 reasons that an additional test not originally ordered by your doctor would be performed. The first is that your doctor may have call the laboratory to request additional testing after the order was submitted. The second is that one of the tests your doctor ordered may have been a "reflex" test. Reflex testing may result in additional test being performed depending on the results of the original test. The reflex test is performed to get more detailed information about the findings on the initial test.
Can I access my DLO bill through my MyQuest account?
Yes, if you have a MyQuest account, logging into your account will get you to your bill the fastest as you do not need to enter further verification information.
How do I pay my bill by mail?
To pay your bill by mail, send your payment to the "Send Payments To" address listed on your bill.
Please send the Payment Coupon(s) attached to your bill(s) along with your payment. Write you bill number(s) on your check or money order to ensure proper credit is applied.
Does DLO have a program for patients experiencing financial hardship and/or patients who do not have insurance?
Yes. Through DLO's partnership with Quest Diagnostics, we're able to offer payment plans which allow patients to pay in monthly installments until their balance is paid in full. We also offer a Financial Assistance Program that provides free or reduced-fee lab services. Reduced fees are based on federal guidelines for household income.
To learn more about our financial assistance programs, contact our Billing Department at 1.888.241.7742 after you receive your bill. You will need to provide the following:
- Your insurance information (if applicable)
- Your annual gross household income
- Number of members living in the household
- Hardships to consider
To learn more about DLO's Upfront Payment Program, please click here.