About Quest Diagnostics

Quest Diagnostics is a Healthcare company, headquartered in Secaucus, with 10,001+ employees and annual revenue of $1B+.

Quest Diagnostics (NYSE: DGX) empowers people to take action to improve health outcomes. Derived from the world's largest database of clinical lab results, our diagnostic insights reveal new avenues to identify and treat disease, inspire healthy behaviors and improve health care management. Quest ...

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Quest Diagnostics Company Highlights

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Phone Number

(973) 520-xxxx

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Corporate Office Address

500 Plaza Drive
Secaucus, 07094

Industries Served

Healthcare

Number of Employees

10,001+ Employees

Company Revenue

$1B+

Quest Diagnostics Email Format

The most common Quest Diagnostics email format is [last][f] (ex. doej@questdiagnostics.com), currently being used by 25% of Quest Diagnostics business email addresses. There are 28 email formats used by Quest Diagnostics.

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Quest Diagnostics Org

Quest Diagnostics has 67 C-Level, 106 VP, 2065 Director, 3863 Manager, 1099 Senior, 16577 Mid-Level, and 1385 Other employees.

Quest Diagnostics Decision Makers

  • CEOChristine Tobias
  • CFOMichael Schmidt
  • CTOThomas Wagner
  • CMOL Michael Snyder

Quest Diagnostics's Tech Stack

.NET
Ada
AddThis
Adex

Frequently Asked Questions About
Quest Diagnostics

FAQs

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Who is the CEO of Quest Diagnostics?

The CEO of Quest Diagnostics is Christine Tobias. See full contact details  ›

Who is the CMO of Quest Diagnostics?

The CMO of Quest Diagnostics is L Michael Snyder. See full contact details  ›

Who is the CFO of Quest Diagnostics?

The CFO of Quest Diagnostics is Michael Schmidt. See full contact details  ›

Who is the CTO of Quest Diagnostics?

The CTO of Quest Diagnostics is Thomas Wagner. See full contact details  ›

How many senior employees does Quest Diagnostics have?

Quest Diagnostics has 7200 senior employees that are typically used for decision making.

What email format does Quest Diagnostics use?

The most common Quest Diagnostics email format is {last}{f} (e.g. doej@questdiagnostics.com).

Who are the key decision makers at Quest Diagnostics?

Key decision makers at Quest Diagnostics include Christine Tobias (CEO), Michael Schmidt (CFO), Thomas Wagner (CTO), and L Michael Snyder (CMO). See full contact details  ›

What technologies does Quest Diagnostics use?

Quest Diagnostics uses technologies including .NET, Ada, and AddThis.

How do I contact Quest Diagnostics?

To contact Quest Diagnostics, visit questdiagnostics.com.

What companies are similar to Quest Diagnostics?

Companies similar to Quest Diagnostics include American Family Insurance, The Standard, and Guy Carpenter.

Where is Quest Diagnostics headquartered?

Quest Diagnostics is headquartered at 500 Plaza Drive, Secaucus.

What is the main phone number for Quest Diagnostics?

The main phone number for Quest Diagnostics is (973) 520-xxxx.

What is the official website for Quest Diagnostics?

The official website for Quest Diagnostics is questdiagnostics.com.

What is the annual revenue of Quest Diagnostics?

The annual revenue of Quest Diagnostics is $1B+.

How many employees does Quest Diagnostics have?

Quest Diagnostics has 10,001+ employees.

What industry is Quest Diagnostics in?

Quest Diagnostics is in the Healthcare industry.

Last updated: November 4, 2025

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