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      Quest Diagnostics

      Engaged Employer

      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

      Ratings by demographic groups

      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
      4.0
      Dec 10, 2025

      Strong experience in healthcare data operations

      Data technician
      Recommend
      CEO approval
      Business Outlook

      Pros

      I gained real hands-on experience working with high-volume clinical data and learned how to identify, correct, and validate information flowing through laboratory systems. The role strengthened my technical accuracy, attention to detail, and understanding of how data governance supports clinical, billing, and compliance workflows. The environment was structured, expectations were clear, and the work helped build a solid foundation for data analytics and data management roles.

      Cons

      The work can be repetitive and heavily task-driven with limited opportunities for expanded responsibilities. Workflow volume fluctuates, which sometimes creates pressure to move quickly while still maintaining accuracy. Upward mobility on the data operations side is achievable but can be slow without active cross-training or mentorship.

      Viewing 88 - 90 of 5,682 Reviews
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      ReviewsQuest Diagnostics 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.