How to Pay Your Quest Diagnostics Bill Online and by Mail

What Quest Diagnostics Bill Pay offers

Quest Diagnostics Bill Pay is the online payment system Quest Diagnostics operates for customers who have received a bill for lab work, testing, or other diagnostic services. You can pay through their website or by mail, and payments go directly to Quest rather than through a third-party processor. The system lets you pay a full balance, a partial amount, or set up a one-time payment without creating an account.

Quest Diagnostics is one of the largest clinical laboratory networks in the United States, operating thousands of patient service centers. If you received a bill from Quest — whether for a test ordered by your doctor, a direct-to-consumer screening, or services at a Quest location — you can pay it through their bill pay portal or by traditional mail.

Key Takeaways

• You can pay a Quest Diagnostics bill online through their website without creating an account, or by mailing a check to the address printed on your bill.
• Online payments typically process within one to two business days, while mailed payments take seven to ten business days depending on postal delivery.
• You will need your bill number and the amount due to pay online; your bill shows both pieces of information at the top.
• Quest does not charge a fee for online bill pay or mailed payments, though your bank may charge a fee if you use their bill pay service instead.
• If you cannot pay the full amount, you can make a partial payment online or contact Quest's billing department to discuss a payment plan.

Paying online through Quest's website

To pay online, go to Quest Diagnostics' bill pay page and enter your bill number and date of service. You do not need to log into a patient account or create one. The system will display your balance and let you choose to pay the full amount, a partial amount, or a specific dollar figure you enter.

You will need a debit card, credit card, or bank account number to complete the payment. Quest accepts Visa, Mastercard, American Express, and Discover. If you pay by bank transfer (ACH), the payment takes one to two business days to post. Credit and debit card payments may post the same day or within one business day, depending on your card issuer and the time of day you submit.

After you submit payment, Quest will display a confirmation number on screen. Write this number down or take a screenshot — you will need it if you contact Quest's billing department later to confirm the payment went through.

Mailing a check or money order

Your bill includes a mailing address for payments in the lower left or right corner, usually labeled "Payment Address" or "Send Payment To." Mail your check or money order to that address, and include your bill number on the check memo line. Do not send cash through the mail.

Mailed payments typically take seven to ten business days to arrive and be processed, depending on postal delivery time and Quest's processing schedule. If you are paying close to a due date, mailing is riskier than paying online because the payment may not post in time to avoid a late fee. If your bill shows a due date within the next week, pay online instead.

Keep a copy of the front and back of your check or a photo of your money order receipt for your records. If Quest does not post the payment within two weeks of mailing, contact their billing department with your confirmation details.

Payment plans and partial payments

If you cannot pay the full balance at once, you can make a partial payment online when ready. Log into your patient account on Quest's website or call their billing department at the number on your bill to discuss a formal payment plan. Quest may offer to spread your balance over several months, though terms vary by location and the size of your bill.

Payment plans typically require you to make a first payment online or by mail, then set up automatic payments for the remaining balance. Some locations allow you to pay by phone using a debit or credit card, which may process faster than mailing a check.

What happens if you miss a payment important date

If your bill reaches the due date without payment, Quest may charge a late fee (usually $25 to $50, depending on your state and the bill amount). The bill may also be sent to a collection agency, which will contact you by phone, mail, or email. A collection account can lower your credit score and appear on your credit report for up to seven years.

If you receive a collection notice, contact Quest's billing department or the collection agency when ready. Many will accept a payment plan or negotiate a lower settlement amount if you contact them before the account is sold to another collector. Do not ignore collection notices — responding quickly gives you more options.

Fees and payment method costs

Quest Diagnostics does not charge a fee to pay your bill online or by mail. However, if you use your bank's bill pay service to send a check on your behalf, your bank may charge a small fee (typically $1 to $3 per transaction). Credit card companies do not charge extra to pay a medical bill, but some may treat the payment as a cash advance if you use a card cash advance feature — avoid that.

If you pay by phone using a third-party payment processor (not Quest's website), that processor may charge a convenience fee of 2 to 3 percent of the bill amount. Always pay through Quest's official website or by mail to avoid these extra charges.

Finding your bill number and payment information

Your bill number appears at the top of your paper bill or in the subject line of an email bill. It is usually a seven- to ten-digit number starting with letters or numbers specific to your location. If you cannot find your bill, log into your patient account on Quest's website and look for "Billing" or "My Bills" in the menu. You can also call the billing phone number on your bill or your original receipt from your test visit.

If you lost your bill entirely, you can still pay online by calling Quest's billing department. They will provide your bill number and current balance over the phone, and you can then pay online using that information.

Frequently Asked Questions

How long does it take for an online payment to show up on my bill?

Online payments typically post within one to two business days. If you pay by bank transfer (ACH), it may take up to two business days. Credit and debit card payments sometimes post the same day, but do not count on it. Check your account online or call billing to confirm the payment posted before the due date.

Can I set up automatic payments for recurring Quest bills?

If you have a patient account with Quest, you can set up automatic payments through your account settings. Log in, go to Billing, and look for "Autopay" or "Recurring Payments." You can choose to pay a fixed amount or your full balance each month. You can stop automatic payments at any time by logging in or calling billing.

What if I paid online but my bill still shows as due?

Wait one to two business days for the payment to post. If it still does not appear after two business days, log into your account or call billing with your confirmation number from the online payment. Quest can verify the payment was received and tell you when it will post.

Can I dispute a Quest Diagnostics bill?

Yes. If you believe the bill is wrong — for example, you were charged twice or the amount does not match what you were quoted — contact Quest's billing department before paying. They can review the charges and issue a credit or corrected bill. Do not ignore a bill you think is wrong; disputing it in writing creates a record.

What if I cannot afford to pay my Quest bill at all?

Contact Quest's billing department to discuss your situation. Some locations have financial hardship programs or can reduce bills for uninsured patients. You can also ask about a payment plan with no interest. If Quest cannot help, look into whether you may have access to for Medicaid or other state health programs that might cover past medical bills.