How to Schedule an Appointment at Quest Diagnostics

How to Schedule a Quest Lab Appointment Online or by Phone

You can schedule a Quest Diagnostics lab appointment through their website, mobile app, or by calling their customer service line. Most people book online because you can see available times at your nearest location and confirm your appointment in seconds. You will need your insurance card (or payment method if you are uninsured), the name of the test your doctor ordered, and your doctor's order or requisition form.

Quest has thousands of patient service centers across the United States, so you typically have multiple locations to choose from. The appointment system shows you real-time availability, and you can often get in within a few days. Walk-ins are also accepted at most locations, though you may wait longer than if you had booked ahead.

Key Takeaways

• Book online at questdiagnostics.com, through the Quest mobile app, or by calling 1-800-222-0446 to schedule at a location near you.
• Have your insurance card, doctor's order, and photo ID ready before you book, as the system will ask for this information.
• You can usually reschedule or cancel an appointment up to 24 hours before your appointment time through the same online portal or by phone.
• Most Quest locations are open early morning through evening on weekdays and have limited Saturday hours; Sunday hours vary by location.
• If you do not have a doctor's order, some Quest locations offer wellness screening packages you can book without a referral.

Booking Through the Quest Website

Go to questdiagnostics.com and click "Schedule an Appointment" or "Find a Lab" at the top of the page. Enter your zip code or city to see all Quest patient service centers within your area, along with their hours and distance from you. The system will show you which locations have same-day or next-day appointments available.

Select the location you prefer, then choose your appointment date and time from the available slots. You will be asked to enter your name, date of birth, phone number, and email address. Have your insurance card ready—you will need to enter your member ID and group number. If you are uninsured or paying out of pocket, you can proceed without insurance information and will see the cost of your test before confirming.

Upload or have your doctor's order ready. Some orders come through electronically to Quest, but if yours did not, you can upload an image of the paper order during booking or bring it with you on the day of your appointment. After you confirm, Quest will send you a confirmation email with your appointment details, location address, and parking information.

Booking by Phone or Through the Mobile App

Call Quest customer service at 1-800-222-0446 to schedule over the phone. A representative will ask for your zip code, preferred dates and times, and insurance information. This route works well if you have questions about which test to book or if you need help finding a location with extended hours.

The Quest mobile app (available on iOS and Android) lets you book the same way as the website. read the app, create an account or sign in, enter your location, and browse available appointments. Many people find the app faster for rescheduling because you can manage your appointment directly from your phone.

What to Bring to Your Appointment

Bring a photo ID (driver's license, passport, or state ID) and your insurance card. If you booked online, Quest will have your information on file, but the staff will verify it when you arrive. If you have a paper copy of your doctor's order, bring that too—it speeds up the check-in process, though Quest can often pull it up electronically.

Wear loose, comfortable clothing with sleeves that roll up easily if you are having blood drawn. Eat and drink normally unless your doctor told you to fast before your test (fasting instructions are usually included in your doctor's order). Arrive 10 to 15 minutes early to allow time for check-in.

Rescheduling or Canceling Your Appointment

Log into your Quest account on questdiagnostics.com or open the mobile app to see your upcoming appointments. Click on the appointment you want to change, then select "Reschedule" or "Cancel." You can make changes up to 24 hours before your scheduled time. If you need to cancel or reschedule within 24 hours, call 1-800-222-0446 and speak with a representative.

If you miss your appointment without canceling, Quest may charge a no-show fee depending on your location and insurance plan. If you know you cannot make it, cancel as soon as possible so the time slot opens for someone else.

Quest Locations and Hours

Most Quest patient service centers open between 6:00 and 7:00 a.m. on weekdays and close between 5:00 and 7:00 p.m. Many locations have Saturday hours, typically 7:00 a.m. to 1:00 p.m., and some are open on Sunday. Hours vary by location, so check the specific center's schedule when you book. If you need early morning or evening appointments, the online system will show you which nearby locations offer those times.

Some Quest locations are inside hospitals or medical offices, while others are standalone patient service centers. The booking system shows you the exact address and parking details for each location. If you have mobility concerns or need wheelchair access, call ahead to confirm the location can accommodate you.

If You Do Not Have a Doctor's Order

Quest offers wellness screening packages that you can book without a doctor's referral. These include basic blood work packages like lipid panels, metabolic panels, and thyroid screening. Prices are set and displayed upfront. You can book these through the website or app by selecting "Wellness Screening" instead of entering a doctor's order.

Keep in mind that results from a wellness screening are for your information only and are not a substitute for a medical evaluation. If you want your results reviewed by a doctor or need a test your doctor specifically ordered, you will need to bring your doctor's order to your appointment.

Frequently Asked Questions

Can I walk in without an appointment?

Yes, most Quest locations accept walk-ins. However, you may wait 30 minutes to an hour depending on how busy the location is. Booking ahead guarantees your time slot and is faster overall.

What if I do not have insurance?

You can still book and pay out of pocket. Quest will show you the cost of your test during the booking process. Prices vary by test and location, but Quest typically publishes their rates upfront so you know what to expect.

How long does a lab appointment usually take?

Most appointments take 15 to 30 minutes from check-in to completion, depending on the type of test. Blood draws are usually the quickest. Urine or other specimen collections may take a few minutes longer.

When will I get my test results?

Results timing depends on the type of test. Many routine blood tests are available within 24 to 48 hours. You can view results online through your Quest account or your doctor's patient portal once they are ready. Quest will also notify you by email or text when results are available.

Can I reschedule my appointment the day before?

Yes, you can reschedule up to 24 hours before your appointment through the website, app, or by calling 1-800-222-0446. If you need to reschedule within 24 hours of your appointment, call the phone number to speak with someone who may be able to help.