How to Find and Schedule a LabCorp Appointment

LabCorp appointments are available through their online scheduling system, by phone, or by walking in to a patient service center

You can check for open appointment slots on LabCorp's website by entering your zip code and selecting a nearby location. The system shows you available times for the same day or upcoming days, depending on the center's schedule. If you prefer to book by phone, call LabCorp's appointment line at 1-800-LAB-CORP (1-800-522-2677) and a representative will find an opening that works for you. Many LabCorp patient service centers also accept walk-ins during their operating hours, though wait times vary by location and time of day.

Before you book, have your doctor's order or lab requisition ready — LabCorp will ask for the test code or the name of the tests your doctor ordered. You'll also need a valid photo ID and insurance card (if you have insurance) at your appointment. If you're scheduling online, the system will confirm your appointment by email and send you pre-visit instructions if your test requires fasting or other preparation.

Key Takeaways

• LabCorp's online scheduler shows real-time availability at your nearest location and lets you book same-day or future appointments.
• You can also call 1-800-522-2677 to book over the phone or walk in without an appointment at most patient service centers.
• Have your doctor's lab order, photo ID, and insurance card ready before your appointment.
• If your test requires fasting or other prep, LabCorp will send those instructions when you book or check in.
• Walk-in wait times depend on the time of day and how busy the center is, so arriving early in the morning usually means a shorter wait.

Using LabCorp's Online Scheduling System

Go to labcorp.com and look for the "Schedule a Lab Test" or "Find a Location" button on the homepage. Enter your zip code or city, and the system will show all LabCorp patient service centers near you, sorted by distance. Each location displays its hours, address, and phone number.

Click on the center you want to visit, and the system will show you available appointment slots for the next several days. Select the date and time that work for you, then enter your basic information: name, date of birth, phone number, and email address. The system will ask whether you have a doctor's order and what tests you need. If you know the test code or name, enter it; if not, you can describe the test and LabCorp's system may suggest matches. After you confirm your appointment, you'll receive an email confirmation with your appointment details and any pre-visit instructions.

Booking by Phone or Walking In

If you prefer to speak with someone, call LabCorp's main appointment line at 1-800-522-2677. A representative will ask for your zip code, preferred dates and times, and the tests your doctor ordered. They can often book you the same day or within a few days, depending on the center's schedule. The representative will also confirm your insurance information and let you know if there are any out-of-pocket costs.

Walk-in appointments are available at most LabCorp patient service centers during their regular hours. You don't need to call ahead — just bring your doctor's order, photo ID, and insurance card. Wait times for walk-ins are typically shortest in the early morning (before 10 a.m.) and longest during lunch hours and late afternoon. If you walk in and the center is very busy, a staff member may offer you a time slot later that day instead of having you wait.

What to Bring and How to Prepare

Bring a valid photo ID (driver's license, passport, or state ID) and your insurance card to your appointment. You'll also need your doctor's lab order or requisition form — this is the document your doctor gave you that lists the specific tests to be done. If you don't have a physical copy, ask your doctor's office to send it to LabCorp before your appointment, or bring the order number if your doctor provided one.

Some tests require fasting (not eating or drinking anything except water for 8 to 12 hours before the test) or other preparation. When you schedule your appointment online or by phone, LabCorp will tell you if your test has any prep requirements. If you're unsure, call the patient service center directly or check the test information on LabCorp's website. Following prep instructions correctly helps ensure your results are accurate.

Same-Day and Next-Day Appointments

LabCorp's online scheduler often shows same-day appointments available, especially at larger patient service centers in urban and suburban areas. Same-day slots fill quickly, so if you see one that works for you, book it right away. If same-day appointments aren't available at your preferred location, the system will show you next-day options and beyond.

If you need lab work done urgently and can't find an appointment online, call 1-800-522-2677 and explain your situation to the representative. They may be able to find a same-day slot at a different nearby location or offer you a walk-in time. Some LabCorp centers in high-traffic areas have extended hours in the evening or on weekends, which can also help you get tested sooner.

What Happens When You Arrive

Arrive 10 to 15 minutes early to allow time for check-in. A staff member will verify your identity, confirm your insurance information, and review the tests on your doctor's order. They'll ask you to sign a consent form and may ask screening questions about your health history or current medications. If you're fasting, they may ask when you last ate or drank.

After check-in, you'll wait to be called back to the collection area. A phlebotomist (the person trained to draw blood) will verify your name and date of birth, explain what they're about to do, and draw your blood sample or collect whatever specimen your test requires. The whole process usually takes 5 to 15 minutes. You'll receive a receipt or confirmation that your sample was collected, and LabCorp will send your results to your doctor within a few days (timing varies by test).

Canceling or Rescheduling Your Appointment

If you need to cancel or reschedule, do it as soon as possible. You can cancel or reschedule online through your appointment confirmation email or by logging into your LabCorp account on their website. You can also call 1-800-522-2677 to make changes over the phone. Canceling ahead of time helps LabCorp open that slot for other patients and prevents no-show fees if your insurance or LabCorp charges them.

If you're rescheduling, the system will show you available times at the same location or a different one. Your doctor's order remains valid, so you don't need a new one unless your doctor specifies an expiration date on the original order.

Frequently Asked Questions

Do I need an appointment or can I just walk in?

Most LabCorp patient service centers accept both scheduled appointments and walk-ins. Walk-ins are welcome during regular hours, but you may wait longer during busy times. Scheduling ahead usually means a shorter wait, but walk-ins are an option if you can't book in advance.

What if I don't have my doctor's order with me?

Call your doctor's office and ask them to send your lab order to LabCorp before your appointment, or ask for the order number. You can also bring the order number to your appointment and LabCorp can look it up. Without an order, LabCorp cannot perform the test, so contact your doctor first.

Can I reschedule my appointment online?

Yes. Use the link in your appointment confirmation email to reschedule, or log into your LabCorp account on their website. You can also call 1-800-522-2677 to reschedule by phone. Changes can usually be made up to a few hours before your appointment time.

How long does it take to get my results?

Most routine blood tests are available within one to three business days. Your doctor's office will receive the results, and you may also see them in your LabCorp patient portal if you create an account. Ask your doctor's office how they'll share results with you.

What if the nearest LabCorp is far away?

Use LabCorp's location finder to see all centers within your search radius. You can expand your search to nearby towns or cities. If distance is a real barrier, ask your doctor whether they can order tests through a different lab network that has a location closer to you.