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 28, 2026

Great company

Recommend
CEO approval
Business Outlook

Pros

Great environment. Great staff. Lots of support

Cons

No cons at the moment

4.0
Jan 26, 2026

Phlebotomist

Recommend
CEO approval
Business Outlook

Pros

My manager does what she can to support me. Mostly no drama as long as you do your job. Benefits are good

Cons

Heavy workloads, communication issues within the company. Intermediate behind the scenes people can be disrespectful to phlebotomists

3.0
Jan 25, 2026
Recommend
CEO approval
Business Outlook

Pros

Fast paced, busy all of the time

Cons

Some of the patients are very rude and confrontational.

Viewing 64 - 66 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.