Brand Certified
Quest Diagnostics
3.7(234 reviews)
Certified by Quest Diagnostics • Apr 05, 2026
Business Details
100 E 120th Ave, Northglenn, CO
80233, United States
Certified by Quest Diagnostics • Apr 05, 2026
(720) 403-7638
Certified by Quest Diagnostics • Apr 05, 2026
https://locations.questdiagnostics.com/co/northglenn/100-e-120th-ave
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
Monday7:30 AM - 5:00 PM
Tuesday7:30 AM - 5:00 PM
Wednesday7:30 AM - 5:00 PM
Thursday7:30 AM - 5:00 PM
Friday7:30 AM - 5:00 PM
Saturday8:00 AM - 12:00 PM
SundayClosed
Reviews
3.7
234 reviews
5 stars
149
4 stars
10
3 stars
4
2 stars
8
1 star
63
- BKBindu Kurien3 days ago5.0Very easy process to check in. Very friendly staff.
- JHJack HMar 24, 20264.0The phlebotomist, Paula, was incredibly kind and had excellent bedside manner.
- KFKristen FundenbergerMar 23, 20265.0I highly recommend this location for Quest. I showed up this morning and shared with them that I am self-pay, not paying through insurance. Instead of just drawing my blood and leaving it at that, the tech drawing my blood, Paola, waited until the supervisor team lead was done with his patient so he could come assist with my situation. They helped me log onto a third-party, called Ulta Labs so that I would have a large percentage marked off my bill being that I was a self-pay patient. I created an account there in the office, and they waited patiently and then helped me load all the blood work tests that my doctor had ordered and helped me process it so that I could still go through with my appointment and have my lab work done still during that appointment time. Both the supervisor team lead, Craig and tech lady, Paola helped me figure out the payment options and get everything situated through this third-party website. I was able to save nearly $600 by everything they helped me to do. What an incredible team of people who genuinely care about their patients.
- LCLynda CroweMar 17, 20265.0Gals were great, proficient, and accommodating to my special needs.
- TMTayler MooreMar 5, 20265.0This entire process was extremely efficient. You get to make an appointment on the phone through an automated system & check in online before you walk in, if you'd like. My appointment was at 10:30am & I was finished & in my jeep at 10:34am.
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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