Quest Diagnostics Customer Service Contacts

Quest Diagnostics collects personal and health information from patients and website users to provide diagnostic services, process billing, and improve care. The company does not sell personal information and treat all health-related information as confidential. As a HIPAA-covered entity, they protect your “protected health information” (PHI) and may only share it for purposes such as treatment, billing, healthcare operations, or as required by law. If your data is ever used for a materially different purpose than originally collected, Quest will give you the opportunity to opt out, and sensitive data such as medical conditions or racial/ethnic origin will never be used for unrelated purposes without your explicit consent. Your data is retained only as long as necessary for legitimate business or legal purposes, and you can direct privacy-related questions or complaints to privacy@questdiagnostics.com

By using QuestDiagnostics.com, you agree to be bound by the terms and conditions. Quest Diagnostics makes no warranties about the accuracy of content on the site and assumes no responsibility for any consequences of actions taken based on information found there — users assume the entire risk. All materials on the site are protected by copyright and may only be used for non-commercial personal purposes. All health-related information you submit is treated as confidential, and the privacy policy governs how your data is collected, protected, and used. Quest will never ask for your password via unsolicited calls or emails, and unencrypted email is not considered a secure form of communication.

Log in to the MyQuest patient portal, where you can access your lab test results on any web-enabled device, schedule appointments, use the Quest AI Companion for help understanding your results, and in some cases purchase testing.

Use Quest’s online appointment tool to book, reschedule, or cancel a visit at any Patient Service Center near you — no phone call needed.

You can update your insurance information online by authenticating with your bill number, date of birth, and zip code. Quest will then resubmit a claim to your insurance company.

If you are having testing done at a Quest Patient Service Center, you can use the self-pay price estimate tool to obtain pricing information before your visit.

Use Quest’s insurance lookup tool to instantly check whether your health plan is covered before booking your appointment.