How to Schedule and Manage Your Quest Diagnostics Appointment Online
Scheduling your appointment on Quest.com
You can schedule most Quest Diagnostics appointments directly on Quest.com without calling. Go to the Quest website, select "Schedule an Appointment," and enter your zip code to find nearby locations. The site will show you available time slots for the type of test your doctor ordered — usually within the next few days, sometimes same-day depending on the location.
You'll need your doctor's order (also called a requisition) to complete the booking. If your doctor sent it electronically to Quest, the system will find it when you enter your name and date of birth. If you have a paper order, you can bring it with you or upload an image during the scheduling process. Either way, Quest needs to see the order before your appointment to know which tests to run.
After you select your time slot, the site will ask for basic information: your name, date of birth, contact details, and insurance information if you have it. You can complete the appointment without insurance, but Quest will ask you to pay out-of-pocket or set up a payment plan. Once you finish, you'll get a confirmation email with your appointment details and instructions for what to bring.
Key Takeaways
- Quest.com lets you book most appointments in minutes by entering your zip code and selecting an available time slot.
- You need your doctor's order to schedule; Quest can find it electronically or you can upload a copy during booking.
- Bring your insurance card and photo ID to your appointment, or be prepared to discuss payment options if you don't have insurance.
- Some tests require fasting or other preparation; Quest will tell you what to do when you book or in your confirmation email.
- If you can't find an appointment online or need to reschedule, you can call Quest customer service at 1-800-222-0446.
What information you'll need to have ready
Before you start booking, gather your insurance card (front and back) and a photo ID. Quest accepts most major insurance plans, but the site will tell you during checkout whether your plan is in their system. If you're uninsured or your insurance doesn't cover the test, Quest will show you the out-of-pocket cost before you confirm the appointment.
You'll also need your doctor's order. If your doctor's office sent it to Quest electronically, you won't need to do anything — just enter your name and date of birth during booking and Quest will pull it up. If you have a paper order, take a clear photo of it with your phone or have the original ready to bring in. The order should show your name, date of birth, the tests your doctor wants, and your doctor's signature or stamp.
Preparing for your appointment day
Check your confirmation email for any special instructions. Some blood tests require fasting (not eating or drinking anything but water for 8 to 12 hours before the appointment), and Quest will tell you if yours does. Other tests have no prep requirements. If you're not sure, call the location directly — the phone number is in your confirmation email.
Arrive 10 to 15 minutes early so you have time to check in. Bring your insurance card, photo ID, and your doctor's order if you have the paper copy. Wear loose, comfortable clothing that lets the phlebotomist (the person drawing blood) access your arm easily. If you're nervous about needles or have had trouble with blood draws before, let the staff know when you check in — they can help you feel more comfortable.
Tracking your test results online
After your appointment, your results typically appear in your Quest account within 24 to 48 hours, though some tests take longer. You can view them by logging into Quest.com with the same username and password you used to schedule. Results show up under "My Results" with the test name, your value, and the reference range (what's considered normal).
Your doctor's office also receives your results electronically. If your doctor uses a patient portal, you may see them there too. If you have questions about what your results mean, call your doctor — they ordered the test and can explain what the numbers mean for your health. Quest's website shows reference ranges but doesn't interpret results for individual patients.
Rescheduling or canceling your appointment
You can reschedule or cancel through Quest.com by logging into your account and selecting your appointment. Most locations let you change your time or date up to 24 hours before your appointment. If you need to cancel within 24 hours or can't find your appointment online, call the location directly using the number in your confirmation email.
If you miss your appointment without canceling, some locations may charge a no-show fee. If something comes up and you can't make it, contact Quest as soon as you know so they can offer the slot to another patient and avoid the fee.
What to do if you can't schedule online
Some types of appointments — like certain wellness screenings or specialized tests — may not be available through the online scheduler. If you can't find your test on Quest.com, call 1-800-222-0446 to speak with a representative who can book it for you over the phone. Have your doctor's order and insurance information ready when you call.
You can also call if you have questions about whether you need fasting, what to bring, or whether a particular location offers the test you need. Quest's phone lines are usually busiest in the morning, so calling in the afternoon may get you through faster.
Understanding your Quest account and login
When you schedule your first appointment on Quest.com, you create a login account. Use the same email and password every time you visit so you can see all your past appointments and results in one place. If you forget your password, click "Forgot Password" on the login page and Quest will send you a reset link.
Your account is private and password-protected. Only you can see your results unless you give someone else permission. If you want your doctor or a family member to view your results, you can set that up in your account settings, though some offices prefer you to share results directly with them instead.
Frequently Asked Questions
Do I have to schedule online, or can I just walk in?
Most Quest locations accept walk-ins, but scheduling online guarantees your time slot and usually means shorter wait times. If you walk in without an appointment, you may wait 30 minutes to an hour depending on how busy the location is. Scheduling takes five minutes and is almost always faster.
What if my doctor's order doesn't show up when I try to schedule?
Call your doctor's office and ask them to send the order to Quest again, or ask them for a copy you can bring with you. If your doctor's office faxes or mails orders, it can take a day or two to reach Quest's system. You can also bring the paper order to your appointment — Quest will accept it at check-in.
Can I schedule an appointment for someone else?
You can schedule for a family member or dependent if you have their information and their doctor's order. During booking, enter their name and date of birth instead of your own. They'll need to bring their ID and insurance card to the appointment. If you're scheduling for a minor, you'll need to be present at the appointment.
How much does a Quest appointment cost?
Cost depends on your insurance plan and the specific tests ordered. Quest.com shows the out-of-pocket cost during checkout if you enter your insurance information. If you're uninsured, Quest offers payment plans for larger bills. Call 1-800-222-0446 to discuss payment options before your appointment.
Can I change my appointment time after I book?
Yes, you can reschedule through Quest.com up to 24 hours before your appointment. Log in, find your appointment, and select a new date and time. If you need to reschedule within 24 hours, call the location directly using the number in your confirmation email.
This guide is general information, not professional advice. Offices and providers set their own rules, so check the details with the one you’re seeing. See our Editorial Policy.