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Quest Diagnostics

3.4
(265 reviews)

Business Details

27699 Jefferson Ave, Temecula, CA
92590, United States
(951) 225-2474
https://locations.questdiagnostics.com/ca/temecula/27699-jefferson-ave

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
27699 Jefferson Ave, Temecula, CA
92590, United States

Hours

Monday6:00 AM - 4:00 PM
Tuesday6:00 AM - 4:00 PM
Wednesday6:00 AM - 4:00 PM
Thursday6:00 AM - 4:00 PM
Friday6:00 AM - 4:00 PM
Saturday8:00 AM - 12:00 PM
SundayClosed

Reviews

3.4
265 reviews
5 stars
144
4 stars
16
3 stars
7
2 stars
11
1 star
87
  • RG
    Rania Georgei
    5 days ago
    5.0
    in and out in 5 min ,eKONA is the best she got my vein from first try ,last time they had to try both arms and get two people to figure it out .
  • PG
    Pinky Gajjar
    Apr 2, 2026
    1.0
    I wanted to share feedback regarding our experience on April 1st. My 10‑year‑old son had an appointment for lab work, and the visit was extremely frustrating from start to finish. The technician attempted to draw blood from both of his arms but was unable to get a sample. We were then told that there were no butterfly needles available, so another staff member couldn’t even attempt the draw. We were instructed to go to another facility. I chose to go to Temecula, not realizing there were three different locations. I called all of them, but the phone system was fully automated, and I couldn’t reach anyone. When I finally arrived at the first facility, I waited for a technician to come out and asked whether they had received the fax from the Fallbrook office. They said they had not and told me to check in anyway. My son had been fasting, and by 9:30 a.m. the earliest appointment available was 1:20 p.m. Despite my frustration, I waited until 11:00 a.m., but my son was too hungry and uncomfortable to continue waiting. At that point, we had to leave without getting the labs done. Overall, the experience was incredibly disappointing. My son was stuck with needles twice, we received no support from either facility, and he went without food until 11 a.m. with no resolution. This was an unacceptable experience for a child and for any patient.
  • DF
    Dana Farrell
    Mar 18, 2026
    5.0
    The nurse who helped me with my blood test, Bree, was just an amazing young lady and if I were you I would do anything in my power to make sure she stays working for you. She was exceptionally patient and kind and very good at her job!
  • DW
    Donnaw Wilson
    Mar 7, 2026
    5.0
    I didnt realize at the time of booking my lab appointment I need to confirm. Arrived and had to go on the walk in list. I didn't wait long. Technician was polite, kind, and gentle.
  • MG
    Micaela Gabriella
    Feb 27, 2026
    1.0
    During my first visit off Jefferson in Temecula, the phlebotomist drew my blood in a way that did not feel right. I could feel the needle poking when she pulled it out, and my arm was sore for an entire week afterward. On top of that, my genetic testing results came back inconclusive. I truly believe this may be due to the blood not being drawn correctly. Now I’ve had to come to a second location in Murrieta to redo the test, and I’m concerned I may be charged again for something that was not my fault. I’ve currently been waiting here for two and a half hours, and not a single person from the standby list has been called. My recommendation would be to have at least one or two designated staff members specifically assigned to handle walk-ins. If that’s not possible, I would strongly suggest reconsidering offering walk-in options at all, as the current system does not seem to be working. Overall, this has been a very disappointing and time-consuming experience. Please do better especially for the patients that are pregnant and fasting.

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