Quest Diagnostics reviews

3.2

49% would recommend to a friend

(5,682 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 5,682 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
Nov 8, 2025

Rub

Recommend
CEO approval
Business Outlook

Pros

Everything is money, good bonuses

Cons

Favoritism, fake people, leadership sucks

3.0
Nov 6, 2025
Recommend
CEO approval
Business Outlook

Pros

Good Bonuses, tuition reimbursement, great staff friendships

Cons

No room for advancement! I recently completed my bachelor’s in business management for which quest paid for with promises of advancement and no one has said congratulations or even followed up to advance my career now I feel my 4 years of hard work in college has gone in vein!

Viewing 100 - 102 of 5,682 Reviews

Glassdoor has 6,073 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.