Location.com logo
Brand Certified

Quest Diagnostics

3.6
(161 reviews)

Business Details

621 S New Ballas Rd, Saint Louis, MO
63141, United States
(314) 610-5793

About

Family Medicine
The Quest Diagnostics difference. Bringing together quality, speed, and technology to power advanced, affordable diagnostics for all. No trade-offs required.

Location

Quest Diagnostics
621 S New Ballas Rd, Saint Louis, MO
63141, United States

Hours

Monday6:30 AM - 5:00 PM
Tuesday6:30 AM - 5:00 PM
Wednesday6:30 AM - 5:00 PM
Thursday6:30 AM - 5:00 PM
Friday6:30 AM - 5:00 PM
Saturday8:00 AM - 12:00 PM
SundayClosed

Reviews

3.6
161 reviews
5 stars
97
4 stars
7
3 stars
5
2 stars
7
1 star
45
  • JG
    J G
    Apr 3, 2026
    5.0
    I'm impressed, got me in and out and they were crowded.
  • DW
    D W
    Mar 29, 2026
    5.0
    I showed up 15 minutes early for my 6:50am appointment and was called back quickly after I checked-in. The technician, Rachel, was professional, kind, and gentle when using the needle to draw blood.
  • NG
    NurseMidwife Go
    Mar 19, 2026
    5.0
    Everything goes very well, receptionist very welcoming nice friendly and polite as well as the staff. Please continue to do great job!
  • ER
    Erika Renth
    Mar 10, 2026
    1.0
    On March 10th I went to Quest labs at 7:10 am to have lab work drawn as a follow up from my ED visit. I went early in the day because this lab was to check on the viability of my pregnancy and I wanted my physician to have results as early as possible. By 4:30 pm, I had not heard from my physicians office, and I checked my Mercy and saw my lab had not been resulted I tried calling quest to get an update at this time and the only way that I could get through was to use the physician only line . My results were emailed to me, but by that time, my physician’s office was closed. I had to go through the exchange to find out what my next steps were to be and deal with a provider that has no idea what’s going on or my past medical history. It’s aggravating that my labs were not posted to my chart until I called quest. I never had issues with my lab work until Mercy changed to quest. Every time I’ve had labs drawn there have been issues- lost tubes, drawn into the incorrect tubes resulting in additional sticks, but this situation is beyond unacceptable. In addition to potentially delayed emergency care, it was just another burden in an already stressful time for me.
  • AN
    Allison Naughton
    Feb 23, 2026
    1.0
    I will absolutely be avoiding this Quest Diagnostics location moving forward. The woman working reception during my 4:30 appointment was dismissive, rude, and visibly rolled her eyes when one of my ordered tests wasn’t in the system. When I asked whether my doctor could contact the lab to request an add-on, she immediately shut me down, repeatedly interrupting me with a blunt “no” before I could even finish my questions. I made it clear I understood what she was saying—I was trying to get clarification, not a one-word dismissal—but she had no interest in actually listening or helping. It felt like she simply didn’t want to engage at all. What makes this even more frustrating is that the phlebotomist I was passed off to was wonderful—kind, professional, and actually willing to help. She took the time to explain exactly how my doctor could contact the lab regarding the appropriate tubes, which is precisely what I had been trying to ask about in the first place. It’s completely understandable not to know every answer. What’s not acceptable is being condescending, dismissive, and unprofessional to patients who are simply trying to advocate for their own care. The contrast between the receptionist and the phlebotomist made this experience even more disappointing.

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.

Brand Certified Facts from Quest Diagnostics

This information is certified by Quest Diagnostics and published from the brand's official system of record. Data is distributed through an enterprise-grade knowledge management platform. Learn more about our data sources
Certified April 05, 2026Yext Knowledge Graph
  • Address
  • Categories
  • Geo coordinates
  • Legal business name
  • Hours of operation
  • Phone number
  • Official website
Syndication Network
Approved business data is pushed to 100+ publishers, including: