Quest Diagnostics reviews

3.2

52% would recommend to a friend

(5,665 total reviews)

Jim Davis

58% approve of CEO

49% positive business outlook

Quest Diagnostics has an employee rating of 3.2 out of 5 stars, based on 5,665 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 Salud industry (3.4 stars).

Reviews by job title

6K reviews
1.0
Feb 6, 2026
Recommend
CEO approval
Business Outlook

Pros

It’s a job, you get paid

Cons

Management is terrible. They don’t follow ADA requirements, they have proven predators working in leadership positions and refuse to acknowledge it. Withhold important documents from former employees

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 52 - 54 of 5,665 Reviews

Glassdoor has 6,056 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.