Quest Diagnostics reviews

3.2

50% would recommend to a friend

(5,669 total reviews)

Jim Davis

57% approve of CEO

48% positive business outlook

Quest Diagnostics has an employee rating of 3.2 out of 5 stars, based on 5,669 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
3.0
Feb 3, 2026

Quest

Recommend
CEO approval
Business Outlook

Pros

The role involved a lot of repetitive processing, which taught me consistency and accuracy. I’m now hoping to take on responsibilities that allow me to use a broader range of skills.

Cons

There’s limited room for career growth or development without relocating or changing departments.

Viewing 58 - 60 of 5,669 Reviews

Glassdoor has 6,060 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.