Do You Need an Appointment at Quest Diagnostics, or Can You Walk In?

Most Quest Diagnostics locations accept walk-ins, but an appointment guarantees a shorter wait and faster service

You do not have to book an appointment at Quest Diagnostics to get lab work done. Most locations will take you as a walk-in during their operating hours. However, if you book ahead through their website or by phone, you will typically spend less time waiting and move through the process faster. The choice depends on your schedule, how busy the location is that day, and whether you want to minimize time in the waiting room.

Walk-in availability varies by location and time of day. Mornings, especially early mornings on weekdays, tend to have shorter waits. Afternoons and evenings can get crowded. If you walk in without an appointment, you will still need to bring the same documents you would bring to a scheduled visit — your insurance card, photo ID, and any lab requisition your doctor sent to Quest.

Key Takeaways

• Quest Diagnostics accepts walk-ins at most locations, so you do not need an appointment to get lab work done.
• Booking an appointment online or by phone usually means a shorter wait time than walking in without one.
• You will need your insurance card, photo ID, and a lab order from your doctor whether you have an appointment or walk in.
• Early mornings on weekdays typically have the shortest waits for walk-in visits.
• You can check wait times and book an appointment on the Quest Diagnostics website by entering your zip code and selecting a location.

How to book an appointment online or by phone

The fastest way to schedule an appointment is through the Quest Diagnostics website. Go to their location finder, enter your zip code, and select the lab nearest you. The site will show you available time slots for the next several days, and you can book directly. You will need to enter your name, date of birth, phone number, and the type of test your doctor ordered.

If you prefer to call, you can reach Quest customer service at 1-800-222-0446. They can book an appointment and answer questions about what to bring or how to prepare for your specific test. Some tests require fasting (not eating or drinking anything but water for 8 to 12 hours before the visit), and the person on the phone can tell you whether that applies to you.

What to bring whether you have an appointment or walk in

Bring your photo ID and insurance card to any Quest visit. If your doctor sent you a lab requisition — a form that lists which tests to run — bring that too. The requisition can come as a paper form, an email, or a fax sent directly to the Quest location. If you are not sure whether Quest received your order, call ahead or ask when you arrive.

If you do not have insurance or are paying out of pocket, Quest can still run your tests. Ask about the cost when you book or arrive, because prices vary depending on the test and your location. Some employers and health plans offer discounted rates through Quest, so mentioning your employer or plan when you call can sometimes lower your bill.

Walk-in wait times and what to expect

Walking in without an appointment is usually fastest early in the morning, particularly between 7 a.m. and 9 a.m. on weekdays. Mid-morning through afternoon tends to be busier. If you walk in, you will check in at the front desk, provide your ID and insurance card, and wait for a phlebotomist (the person who draws blood) to call your name.

Wait times for walk-ins can range from 5 to 30 minutes depending on how busy the location is that day. Some Quest locations display estimated wait times on their website or in the lobby. If you are concerned about a long wait, you can call the location directly before you go and ask how busy they are at that moment.

Preparing for your lab visit

Check whether your test requires fasting. Many blood tests, especially those that measure cholesterol or glucose, require you to fast for 8 to 12 hours before the visit. If fasting is required, do not eat or drink anything except water after midnight the night before your morning appointment. You can drink water up until the test.

Wear loose, comfortable clothing with sleeves that roll up easily. The phlebotomist will need access to your arm to draw blood. If you tend to feel faint during blood draws, let the staff know when you check in — they can have you lie down during the procedure. Bring a list of any medications you take, though Quest will also ask you about them when you arrive.

When you should book an appointment instead of walking in

Book an appointment if you are on a tight schedule and cannot afford to wait. Appointments typically move faster because the lab reserves a time slot for you. If you need results quickly for a doctor's visit or work requirement, an appointment also lets you ask when your results will be ready — usually 24 to 48 hours for most common tests, though some take longer.

You should also book ahead if you are having a test that requires special preparation, like a glucose tolerance test or a 24-hour urine collection. The lab may need to give you instructions or supplies before your visit, and scheduling ahead ensures they have everything ready. If you are bringing a child or have mobility concerns, an appointment gives the staff a heads-up so they can prepare.

What happens after your test

Results are usually available online through your Quest account within 24 to 48 hours. You can create an account on the Quest website to view results, or your doctor's office may also receive them and contact you. Some results come back faster — a rapid COVID-19 test, for example, may be ready in 15 minutes. Other tests, like cultures that need to grow bacteria, can take a week or more.

If you have questions about your results, you can contact Quest directly or ask your doctor to explain them. Quest also has a nurse line you can call if you have concerns about your test or results, though your doctor is the best person to interpret what the numbers mean for your health.

Frequently Asked Questions

Can I book an appointment for someone else?

You can book an appointment for a family member or dependent if you have their information, but they will need to be present at the visit with their own photo ID. If you are booking for a minor, you will need to be their parent or legal guardian and present during the test.

What if I have an appointment but need to cancel or reschedule?

You can cancel or reschedule through the Quest website or by calling 1-800-222-0446. Cancellations are free, and you can reschedule to a different time or location. If you miss an appointment without canceling, you can still walk in to any Quest location.

Do I need a doctor's order to get lab work at Quest?

Most tests require a doctor's order, which comes as a lab requisition. However, Quest also offers wellness screening packages that you can order directly without a doctor's referral, though these are not covered by insurance and you pay out of pocket.

Can I get results the same day?

Most routine blood tests take 24 to 48 hours. Some rapid tests, like COVID-19 or strep, may be ready in 15 minutes to a few hours. Ask when you book or arrive which timeline applies to your specific test.

What if I arrive for my appointment and my insurance information has changed?

Tell the staff at check-in about the change. They can update your information in the system before your test. Bring your new insurance card if you have it, or let them know your new member ID number.