Quest Diagnostics reviews

3.2

50% would recommend to a friend

(5,670 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 5,670 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
5.0
Jan 20, 2026

N/A

Recommend
CEO approval
Business Outlook

Pros

Flexible hours. Make your on schedule

Cons

Inconsistent work. Cannot rely on work

1.0
Jan 19, 2026

Acquired Company

Recommend
CEO approval
Business Outlook

Pros

Decent work life balance Good people to work with below management

Cons

Does not really care about employees

Viewing 67 - 69 of 5,670 Reviews

Glassdoor has 6,061 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.