Quest Diagnostics reviews

3.2

49% would recommend to a friend

(5,688 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 5,688 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
Aug 25, 2025

HORRIBLE HOURS

Recommend
CEO approval
Business Outlook

Pros

Great health benefits, tuition reimbursement, there's a gym at the Clifton location.

Cons

Still so confused why workers are required to take on a 6th shift every 2 weeks? OT should be volunteer - they keep harping on about people's mental and overall health but every 2 weeks, people must work another full shift on top of their 40 hours which, by the way, is never actually 40 hours because they pressure you to stay longer than that. I get the work is important as it is in medical field... if the specimen processers are supposed to work like nurses do as in they can't leave just because the time is over if something has to be done, then maybe pay them more.

1.0
Jul 13, 2025

Unprofessional Behavior

Recommend
CEO approval
Business Outlook

Pros

Turn around time for testing is pretty good. When staffed accordingly and employees are actually performing in there roles professionally, the site can meet the needs of the patients. Coverage is not consistent and this is fostering unprofessional behaviors by phlebotomist

Cons

Employees are constantly complaining about patients, having one on one conversations with each other in the hallways. Some language is foul and not acceptable. Some employees will sit in drawing rooms with feet up on chairs in between patients and be on cell phones. Some techs disappear off the unit to conduct personal calls with no regard of patients waiting in waiting room. Current employees discuss looking for new jobs and constantly threaten to leave the company. And patients can over hear these discussions. HIPAA violations occur everyday because of how loud they are speaking to patients in drawing rooms.

Viewing 262 - 264 of 5,688 Reviews

Glassdoor has 6,079 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.