Brand Certified
Quest Diagnostics
3.0(160 reviews)
Certified by Quest Diagnostics • Apr 05, 2026
Business Details
260 E Congress Pkwy, Crystal Lake, IL
60014, United States
Certified by Quest Diagnostics • Apr 05, 2026
(815) 459-5217
Certified by Quest Diagnostics • Apr 05, 2026
https://locations.questdiagnostics.com/il/crystal-lake/260-e-congress-pkwy
Certified by Quest Diagnostics • Apr 05, 2026
About
Certified by Quest Diagnostics • Apr 05, 2026
Family Medicine
The Quest Diagnostics difference. Bringing together quality, speed, and technology to power advanced, affordable diagnostics for all. No trade-offs required.
Location
Certified by Quest Diagnostics • Apr 05, 2026
Hours
Certified by Quest Diagnostics • Apr 05, 2026
Monday7:00 AM - 3:30 PM
Tuesday7:00 AM - 3:30 PM
Wednesday7:00 AM - 3:30 PM
Thursday7:00 AM - 3:30 PM
Friday7:00 AM - 3:30 PM
Saturday7:00 AM - 12:00 PM
SundayClosed
Reviews
3.0
160 reviews
5 stars
72
4 stars
9
3 stars1
2 stars
3
1 star
75
- OKOl KuApr 4, 20261.0Even if you have an appointment, it doesn't mean anything. They'll ignore you and then tell you to make an appointment for another day. What a waste of time!
- FBFelicia BotanMar 25, 20265.0It was my first time at this lab and I’m very satisfied! I checked in at 8:50, was called in at 8:53, and by 8:58 I was already done — all before my 9:00 a.m. appointment. Very fast and well organized! The staff was extremely nice and professional. Highly recommend! 😊
- COchelsey ortizMar 11, 20261.0Waited weeks for my appointment just for the place to be closed due to construction.
- DHDave HathwayMar 11, 20261.0This location is closed for Construction. Showed up this morning with the rest of the contractors who were completely overhauling the building. I was one of three people who had fasted and showed up expecting to have our blood drawn.
- NVNataliia VintoniakFeb 19, 20261.0I had a terrible experience with this laboratory, I came to do it and did it several times. I had a confirmed registration number and also an SMS message that my registration was confirmed but they did not want to listen to it. I sat there for several hours, no one wanted to help me. Finally, a male Indian laboratory assistant came out who was very rude and shouted at me and when I said that I was probably leaving this office he shouted Hallelujah and Yes and wished me luck I am very upset because I am a doctor and I have never seen such unhealthy rudeness in my life. I do not know if it was discrimination or racism but this office will make your day worse than it was, do not go here at all, do not waste your time and money. If I had read the reviews about this office sooner, I would never have gone there in my life, it was terrible. And for the future, Mr. laboratory assistant is the worst man, offended in the whole world, so I do not advise going there. and Mr. laboratory assistant if you are reading this review then know that this is not how they behave! especially with women! your management should reconsider your candidacy for this position
Frequently Asked Questions About Quest Diagnostics
What do I need to know before I arrive at a Quest Patient Service Center?
Please be aware that when you visit a Quest Patient Service Center:
• Scheduled appointments are strongly encouraged and will receive priority. Please arrive and check in 10 minutes before your appointment time. If you check in more than 10 minutes late for your appointment, you will be served as a walk-in.
• If you walk in, you will have to wait for the next available opening.
Do you accept walk-ins?
Scheduled appointments are strongly encouraged and will receive priority. If you walk in, you will have to wait for the next available opening.
Should I be fasting?
Fasting before a blood draw means you don’t eat or drink anything except water. If your test requires it, don't forget to fast for 8-12 hours before your appointment. If you’re not sure, contact your doctor's office. To learn more about how to prepare for your test, visit QuestDiagnostics.com/patients/get-tested/prepare/fasting for additional fasting information.
What should I bring to my appointment?
Please arrive and check in 10 minutes before your appointment time. If you check in more than 10 minutes late for your appointment, you will be served as a walk-in.
You should bring the following to your appointment:
•A lab order from your doctor. If your doctor did not give you a paper order, check with them to see if they sent it electronically.
•Photo identification listing your first name, last name, and date of birth (for example, a driver's license, government issued photo ID, Passport, or Green Card).
•Current health insurance information.
•Credit, debit, or health savings card. You will be asked to preauthorize payment for any balance due after your insurance is billed.
It’s important to also know if your test requires fasting the day before and/or morning of your appointment. Your healthcare provider should have indicated this on your lab order or during your visit. Learn more about fasting before a lab test.
Note: Childcare is not available and the waiting area is not attended. Some testing protocols, such as drug screenings or pre-employment screenings, have strict rules which do not allow children to accompany the patient during sample collection. If you have questions about your testing protocols, please contact your healthcare professional or employer for additional information.
How do I check in when I arrive?
Sign in using the Check-in kiosk, or if not available, sign the clipboard at the front desk. Please be prepared to present a valid photo ID and insurance information. Be sure to mark the reason for your visit when signing in.
If you were unable to preregister ahead of time, and would like to do so, you may be able to complete the registration process if you arrive a few minutes early at a Quest Patient Service Center that has a Check-in kiosk. When you check in with your mobile number, you may be asked if you want to complete the registration process on your smartphone while you wait.
My doctor told me they would send over an order. Do you have it?
If your doctor said they would send us the order electronically or via fax, there is no need to confirm that we have the order. If we do not have the order, we will call the doctor to obtain it when you arrive at our Quest Patient Service Center. To prevent delays, be sure to visit our location during your doctor’s office hours or obtain a copy of your order from your doctor.
How soon after my visit will my doctor receive my lab test results?
Turnaround times for test results can vary. If you have a MyQuest account, your test results will be delivered to your account as soon as they are available. This can take 2-5 business days from the time the sample is received, depending on your test.
You should always follow up with your doctor to discuss your results.
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