Quest Diagnostics Locations: Find Nearby Lab Testing Sites (2026 Guide)

Searching for Quest Diagnostics Locations? Here’s Your Complete Guide!

Are you looking for Quest Diagnostics locations to schedule a blood test, wellness screening, or diagnostic service? With over 2,200 patient service centers across the United States, Quest Diagnostics makes lab testing accessible, convenient, and reliable. Whether you need a routine checkup, specialized testing, or same-day results, finding the nearest Quest Diagnostics location is the first step toward managing your health.

In this guide, we’ll cover everything you need to know about Quest Diagnostics locations, including how to find them, what services they offer, and tips for booking appointments. From major cities like Los Angeles and New York to smaller towns, Quest Diagnostics ensures that quality healthcare is within reach. Ready to locate your nearest lab? Let’s dive in!

About Quest Diagnostics: A Leader in Lab Testing

Quest Diagnostics is one of the largest and most trusted diagnostic testing companies in the United States. Founded in 1967 and headquartered in Secaucus, New Jersey, Quest serves millions of patients annually, providing essential lab services to individuals, physicians, and hospitals.

 

Key Facts About Quest Diagnostics

  • Scale: Over 2,200 patient service centers in the U.S. and select international locations.
  • Reach: Serves 1 in 3 adult Americans each year.
  • Services: Blood draws, drug testing, COVID-19 and flu testing, wellness panels, and more.
  • Global Presence: Locations in Brazil, India, Ireland, and Mexico.

Quest Diagnostics is known for its accuracy, efficiency, and commitment to patient care. With a wide range of services and a user-friendly online platform, it’s no wonder Quest is a go-to choice for lab testing.

How to Find Quest Diagnostics Locations

Finding a Quest Diagnostics location near you is simple, thanks to their online tools and mobile-friendly features. Here’s how you can locate the nearest lab:

 

Using the Official Quest Diagnostics Locator

  1. Visit the Quest Diagnostics location finder.
  2. Enter your ZIP code, city, or state to view nearby labs.
  3. Filter results by services offered, such as blood tests, drug screenings, or pediatric testing.
  4. Check hours of operation, directions, and appointment availability.

 

Mobile App Integration

Quest Diagnostics also offers a mobile app that allows you to search for locations, book appointments, and view test results. Simply download the app, enable location services, and find the nearest lab in seconds.

 

Comparison Table: Quest Locator vs. Alternatives

 

Feature Quest Site Google Maps Yelp
Hours Accuracy Real-time User-reported Varied
Appointment Booking Direct Links only No
Insurance Check Yes No Partial

Quest Diagnostics Locations by State

Quest Diagnostics operates in all 50 states, with a strong presence in major metropolitan areas. Below is a breakdown of key states and cities with Quest Diagnostics locations:

 

Quest Diagnostics Locations in California

  • Los Angeles: Over 50 locations, including downtown and suburban areas.
  • San Francisco: Multiple labs in the Bay Area, including express locations for quick visits.
  • San Diego: Conveniently located labs near major highways and medical centers.

 

Quest Diagnostics Locations in Texas

  • Houston: Dozens of labs across the city, including pediatric-friendly locations.
  • Dallas: Central and suburban labs with extended hours.
  • Austin: Popular for wellness panels and same-day appointments.

 

Quest Diagnostics Locations in Florida

  • Miami: Labs in downtown, Coral Gables, and surrounding neighborhoods.
  • Tampa: Convenient locations near shopping centers and hospitals.
  • Orlando: Family-friendly labs with weekend hours.

 

Quest Diagnostics Locations in New York

  • Manhattan: Multiple labs in Midtown, Upper East Side, and downtown.
  • Brooklyn: Accessible locations in Williamsburg, Park Slope, and more.
  • Queens: Labs in Flushing, Astoria, and Long Island City.

 

Quest Diagnostics Locations in Pennsylvania

  • Philadelphia: Central labs with walk-in options and express services.
  • Pittsburgh: Suburban and urban locations for all testing needs.

For a full list of Quest Diagnostics locations in your state, visit the official locator.

International Quest Diagnostics Locations

Quest Diagnostics also operates internationally, making it a trusted option for expats and travelers. Here are some key locations:

  • Brazil: São Paulo (Brooklin Paulista)
  • India: Hyderabad (Gachibowli)
  • Ireland: Dublin (Santry)
  • Mexico: Mexico City (Nápoles)

International locations offer many of the same services as U.S. labs, including blood tests, wellness panels, and diagnostic screenings.

Services Offered at Quest Diagnostics Locations

Quest Diagnostics locations provide a wide range of lab testing services, including:

  • Common Tests: Cholesterol, diabetes, and cancer screenings.
  • Specialized Testing: Paternity tests, genetic panels, and wellness screenings.
  • COVID-19 and Flu Testing: Rapid and PCR tests available at most locations.

Many locations also offer on-site perks, such as no-doctor-referral options and Quest Account integration for viewing results online.

How to Book Appointments at Quest Diagnostics Locations

Booking an appointment at Quest Diagnostics is quick and easy. Follow these steps:

  1. Visit the Quest Diagnostics website or open the mobile app.
  2. Search for a location by ZIP code or city.
  3. Select your desired service and time slot.
  4. Confirm your insurance details and receive a QR code for check-in.

Appointments are recommended, but most locations also accept walk-ins.

FAQs About Quest Diagnostics Locations

How many Quest Diagnostics locations are there?

There are over 2,200 Quest Diagnostics locations in the United States, with additional international sites.

Are walk-ins accepted at Quest Diagnostics?

Yes, walk-ins are accepted, but appointments are preferred to reduce wait times.

What are the hours for Quest Diagnostics locations?

Hours vary by location. Most labs are open Monday through Friday, with some offering weekend hours. Check the official site for details.

Do Quest Diagnostics locations accept insurance?

Yes, Quest Diagnostics accepts most major insurance plans, including Medicare and Medicaid.

Key Takeaways

  • Quest Diagnostics operates over 2,200 locations across the U.S., making lab testing accessible and convenient.
  • Use the official locator tool or mobile app to find nearby labs and book appointments.
  • Services include blood tests, wellness panels, drug screenings, and more.
  • International locations are available in Brazil, India, Ireland, and Mexico.

Conclusion

Quest Diagnostics locations make it easy to access reliable lab testing services, whether you’re in a major city or a small town. With this guide, you can find the nearest lab, book an appointment, and take control of your health. Ready to get started? Visit the Quest Diagnostics locator today and discover the convenience of quality care near you!

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