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How to Schedule a LabCorp Appointment Online, by Phone, or Walk-In

You can schedule a LabCorp appointment through their website, by phone, or by walking in without an appointment

LabCorp lets you book an appointment in three ways: online at labcorp.com, by calling 1-800-LAB-CORP (1-800-522-2677), or by arriving at a location during business hours without booking ahead. Online scheduling is usually the fastest — you pick your test type, location, and time slot in about five minutes. Phone scheduling takes longer because you'll wait for a representative, but it's useful if you're unsure which test you need or if you have questions about fasting or preparation.

Walk-ins are accepted at most locations but may mean a longer wait, especially during morning hours. If you know you'll need a test and have some flexibility with timing, scheduling ahead online or by phone saves you time and guarantees a spot at your preferred time.

Key Takeaways

  • Schedule online at labcorp.com by selecting your test, nearest location, and preferred date and time.
  • Call 1-800-522-2677 if you need help choosing a test or have questions about what to bring and how to prepare.
  • Most LabCorp locations accept walk-ins, but appointment holders are usually seen first, so arriving without booking may mean waiting.
  • Bring a photo ID, insurance card, and any paperwork your doctor gave you — LabCorp will ask for these at check-in.
  • Fasting requirements and preparation steps vary by test, so confirm what you need to do before your appointment date.

Scheduling Online Through LabCorp's Website

Go to labcorp.com and look for the "Schedule a Test" button, usually near the top of the page. You'll be asked to enter your zip code or city to find nearby locations. LabCorp will show you available facilities with their hours and distance from you.

Next, you'll choose your test. If you know the name — such as "lipid panel" or "COVID-19 test" — you can search for it directly. If your doctor ordered a test but you're not sure what it's called, you can enter your doctor's name or the reason for the test (like "annual physical" or "thyroid check"), and LabCorp will suggest matching tests. Once you've picked a test, the system shows available appointment times at your chosen location, usually in 15-minute slots across the next two weeks.

Select your preferred date and time, then enter your name, date of birth, phone number, and email. You'll be asked whether you have insurance and, if so, which carrier. LabCorp uses this to estimate your out-of-pocket cost before you arrive. After you confirm, you'll receive an email confirmation with your appointment details, a barcode, and instructions specific to your test.

Calling LabCorp to Schedule by Phone

Call 1-800-522-2677 during business hours — typically 7 a.m. to 7 p.m. Eastern time on weekdays, with shorter hours on weekends. A representative will ask which test you need, your location preference, and your availability. If you're not sure which test applies to you, tell them your symptoms or what your doctor mentioned, and they can recommend the right one.

The representative will also ask about fasting, medications, or other preparation steps and explain what you need to bring. This is a good time to ask questions about cost, insurance coverage, or whether results will go to your doctor. Once you've booked, you'll receive a confirmation number and an email with the same details you'd get from online scheduling.

What to Bring to Your Appointment

Bring a valid photo ID — a driver's license, passport, or state ID card. LabCorp will not draw blood or process your test without it. You'll also need your insurance card if you have one; if you don't, LabCorp can still run your test, but you'll pay out of pocket.

If your doctor ordered the test, bring any paperwork they gave you — a lab requisition form, a printed order, or a message from your doctor's patient portal. LabCorp can also look up orders electronically if your doctor's office sent it directly, but having the paperwork with you speeds up check-in. Arrive 10 to 15 minutes early to complete any remaining paperwork.

Fasting and Preparation Before Your Test

Different tests have different requirements. A lipid panel (cholesterol test) usually requires fasting for 9 to 12 hours before your appointment — meaning no food or drinks except water after midnight if your appointment is in the morning. A basic metabolic panel has similar fasting rules. Blood glucose tests may also require fasting. Other tests, like a complete blood count or thyroid test, often don't require fasting at all.

Your appointment confirmation email will list any preparation steps for your specific test. If it doesn't, call LabCorp at 1-800-522-2677 or check the test description on their website. Some tests ask you to avoid certain medications for a few hours beforehand, or to wear loose clothing so the phlebotomist can access your arm easily. Following these instructions makes the test faster and more accurate.

What Happens During Your Appointment

Check in at the front desk with your ID and insurance card. A staff member will confirm your test type and ask a few health questions — whether you're on blood thinners, if you've had fainting episodes during blood draws, or if you have a preferred arm for the needle. This takes about five minutes.

You'll then be called back to a phlebotomy station, where a trained technician will draw your blood or collect your sample. Most blood draws take less than a minute. The technician will label your sample with a barcode that links to your test order, and you're done. Results typically arrive within one to three business days, depending on the test type. Your doctor's office will receive them automatically if your doctor ordered the test, and you can also view them through LabCorp's patient portal if you create an account.

If You Walk In Without an Appointment

Most LabCorp locations accept walk-ins during their posted hours. You'll check in at the front desk, provide your ID and insurance card, and tell staff which test you need. If you don't know the test name, explain what your doctor said or why you're there, and they'll help you identify it.

Walk-ins are usually processed in the order they arrive, but people with appointments are typically called back first. During busy times — usually 8 a.m. to 10 a.m. on weekdays — you may wait 30 minutes to an hour. Afternoon appointments or weekday mid-morning slots tend to have shorter waits. If you know you'll need a test and have flexibility with timing, scheduling ahead online saves you time.

Frequently Asked Questions

Can I schedule an appointment for someone else?

You can schedule online using another person's information if you have their date of birth and know which test they need. By phone, a representative can book for someone else if you provide their details. The person being tested must bring their own photo ID to their appointment.

What if I need to reschedule or cancel?

Log into your LabCorp account online and select your appointment to reschedule or cancel. You can also call 1-800-522-2677. Cancellations are free, and you can rebook for a different time slot immediately.

Do I need a doctor's order to get a test at LabCorp?

No. LabCorp offers direct-to-consumer testing, meaning you can order and pay for many tests yourself without a doctor's order. However, if your doctor ordered a specific test, bring that order so LabCorp can send results directly to your doctor's office.

How much will my test cost?

Cost depends on your insurance and the test type. If you enter your insurance information during online scheduling, LabCorp shows an estimated out-of-pocket cost before you book. Without insurance, prices vary — a basic blood test might cost $20 to $50, while more complex panels cost more. Call 1-800-522-2677 for a specific price quote.

When will I get my results?

Most results arrive within one to three business days. Some tests, like rapid COVID-19 tests, may be ready the same day. You'll see results in your LabCorp patient portal, and your doctor's office will receive them if your doctor ordered the test. LabCorp will not release results to you until they've been reviewed by a physician.

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.