Quest Diagnostics reviews

3.2

49% would recommend to a friend

(5,683 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 5,683 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
4.0
Sep 14, 2025

Things could be better

Recommend
CEO approval
Business Outlook

Pros

Benefits Education Reimbursement Great Co worker Diversity

Cons

Work life balance Pay Growth Distance from work to home

2.0
Sep 14, 2025

Cut-throat

Recommend
CEO approval
Business Outlook

Pros

A new lab so there is the opportunity to guide development and gain valuable experience/training from very nice instrument company representatives. None of the usual STAT/ER friction with hospitals. LOTS OF UNAVOIDABLE DOWNTIME.

Cons

I completed all of the tasks that were assigned to me. Much of the lab was/is being installed and validated. The culture felt very corporate/cut-throat and people rarely accepted responsibility for their role in issues in order to look good to higher-ups. A daily game of trumpet your achievements while sabotaging others. Management/IT doesn't seem really interested in this lab....interpersonal issues and tech problems aren't professionally addressed. It's very hard to get an email response from anyone. A man-child coworker is a huge mess to deal with even though he's "senior". I don't recommend working here unless this is usually an easy job for you and you can cover yourself against coworkers with selfish intentions. Came with the territory as a former travel contract MLS. The current crop of coworkers are kinda weak...with a 1-2 FTE workload (10-20 samples/day) for 5-6 staff there was still constant complaining and backstabbing. The building had/has a rat problem and smelled like a bankrupt pet store. There were rats audibly chewing holes in the ceiling, having babies, and dying. It smelled terrible. A supervisor never reported I concern I had to HR and believed the perpetrator over me.

Viewing 145 - 147 of 5,683 Reviews

Glassdoor has 6,074 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.