Quest Diagnostics reviews

3.2

49% would recommend to a friend

(5,678 total reviews)

Jim Davis

56% approve of CEO

47% positive business outlook

Quest Diagnostics has an employee rating of 3.2 out of 5 stars, based on 5,678 company reviews on Glassdoor which indicates that most employees have a good working experience there. The Quest Diagnostics employee rating is in line with the average (within 1 standard deviation) for employers within the Healthcare industry (3.5 stars).

Reviews by job title

6K reviews
1.0
Aug 21, 2025
Recommend
CEO approval
Business Outlook

Pros

I can't think of any

Cons

Well, in order to avoid writing a whole novel I will try to summarize as best as I can. The place was dirty, hot, unprofessional, and unethical. I was treated like garbage on the side of the road. I still feel traumatized from my experience working in that horribly run place. Seriously, unbelievable.

5.0
Aug 21, 2025
Recommend
CEO approval
Business Outlook

Pros

No unrealistic expectations, will gain knowledge on different types of clinical assays

Cons

Have to choose either Saturday or Sunday as a working day in your schedule.

Viewing 163 - 165 of 5,678 Reviews

Glassdoor has 6,069 Quest Diagnostics reviews submitted anonymously by Quest Diagnostics employees. Read employee reviews and ratings on Glassdoor to decide if Quest Diagnostics is right for you.