Biller name
Quest Diagnostics Incorporated
HQ: Secaucus, NJ
Legal name
Quest Diagnostics Incorporated
Website
Deferit is unaffiliated with Quest Diagnostics Incorporated
Pay your Quest Diagnostics Incorporated bill with Deferit
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Financing Option
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How to pay Support FAQ Split into installments
Quest Diagnostics Incorporated Account & Billing Support
| Department | Number / Channel |
|---|---|
| Customer Service Main | 866-697-8378 |
Retrieved July 2026 · Source: questdiagnostics.com/contact-us/please-call-us-at-1-866-myquest ·questdiagnostics.com/contact-us/customer-service ·questdiagnostics.com/patients/billing-insurance ·questdiagnostics.com/contact-us/report-an-issue-or-concern · current departmental phone numbers and hours of operation.
About Quest Diagnostics Incorporated
Quest Diagnostics Incorporated is an American clinical laboratory operating as a Fortune 500 company. The organization provides diagnostic testing services for cancer, cardiovascular disease, infectious disease, neurological disorders, COVID-19, and employment and court-ordered drug testing. Quest operates across the United States, Puerto Rico, Mexico, and Brazil.
Quest Diagnostics Incorporated bills commonly include laboratory testing fees, specimen collection fees, drug screening fees, clinical chemistry analysis, molecular diagnostics, health screening fees, and pathology analysis. Deferit is unaffiliated with Quest Diagnostics Incorporated.
How to Pay Your Quest Diagnostics Incorporated Bill
- Online: Pay securely at patientbill.questdiagnostics.com with credit, debit, or health savings card.
- Phone: Call 1-866-697-8378 (1-866-MYQUEST) to make a payment with a representative.
- Mail: Send payment to the address listed on your bill.
- With Deferit: pay now and split into 4 installments, once every two weeks. Learn more →
Need to split your Quest Diagnostics Incorporated bill into installments?
Retrieved July 2026 · Source: questdiagnostics.com.
| Quest Diagnostics Incorporated payment arrangement |  Deferit | |
|---|---|---|
| How to access | Check Quest Diagnostics Incorporated's online account, payment portal, or customer support team for available payment arrangement options. | Sign up, take a picture of your bill, and Deferit pays it on your behalf. Online or in app. |
| Maximum split | If Quest Diagnostics Incorporated offers payment arrangements, limits are set by Quest Diagnostics Incorporated based on your account status. We couldn't verify a published maximum split. | 4 installments, once every two weeks, up to your Deferit balance |
| Eligibility & approval | Decided by Quest Diagnostics Incorporated at request time based on account status | Monthly Deferit membership, no lock-ins. Cancel anytime. |
| Fees & interest | Fees and interest were not published in the sources reviewed. Check Quest Diagnostics Incorporated's payment portal or support team before setting up an arrangement. | Monthly Deferit membership plus a $0.99 processing fee per bill. No interest. No late fees on eligible Deferit memberships.* |
| If you miss a payment | Missed-payment consequences are set by Quest Diagnostics Incorporated and may include late fees, service interruption, or collection activity depending on your account. | You can reschedule a repayment date in the app before it's due. Late fees may apply depending on your Deferit membership.* |
| Works for | Quest Diagnostics Incorporated bills only | Quest Diagnostics Incorporated and most other US household bills |
| Learn more → |
*No late fees feature included with Max and Ultra memberships. Installments on the Lite membership may incur late fees if overdue. See Membership terms for details.
Pay your Quest Diagnostics Incorporated bill with Deferit
Earn 2% cashback on every bill, redeemed off your next payment. No subscription fee.
Common Questions About Quest Diagnostics Incorporated
Can I use Deferit to pay my Quest Diagnostics Incorporated bill? ›
Yes. Enter your Quest Diagnostics Incorporated bill amount in Deferit and we pay Quest Diagnostics Incorporated in full right away. You repay us in 4 bi-weekly installments.
What payment methods does Quest Diagnostics Incorporated accept? ›
Quest Diagnostics Incorporated typically accepts online payments via credit card, debit card, or bank transfer. Visit questdiagnostics.com or contact their support team for the most up-to-date options.
Does Quest Diagnostics Incorporated offer autopay? ›
Most billers offer automatic payment to help avoid late fees. Visit Quest Diagnostics Incorporated's website or app to check whether autopay is available and how to enroll.
What do I do if I can't pay my Quest Diagnostics Incorporated bill on time? ›
Contact Quest Diagnostics Incorporated directly to ask about payment arrangements or hardship assistance programs. Deferit can also help — split your bill into 4 payments to ease the immediate financial pressure.
Updated: July 2026