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Holiday schedule

Quest Diagnostics Patient Service Centers will be closed on Thursday, November 27, 2025 for the Thanksgiving Holiday. All Quest Diagnostics locations will be closing early at 12:00pm on Friday, November 28, 2025. Have a healthy, happy holiday.

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LOCATION INFORMATION

6201 Greenbelt Rd
Suite M3
College Park, MD 20740
301-474-7726
301-345-4081

Detail

We offer broad access to clinical testing services through our national network of laboratories in most major metropolitan areas as well as approximately 2,000 patient locations.


Landmark : PSC in the medical building directly across from Aldi

Hours

  • Monday:

    8:00 am-12:30 pm , 1:00 pm-4:00 pm
  • Tuesday:

    8:00 am-12:30 pm , 1:00 pm-4:00 pm
  • Wednesday:

    8:00 am-12:30 pm , 1:00 pm-4:00 pm
  • Thursday:

    8:00 am-12:30 pm , 1:00 pm-4:00 pm
  • Friday:

    8:00 am-12:30 pm , 1:00 pm-4:00 pm
  • Saturday:

    7:00 am-11:00 am
  • Sunday:

    Closed

Media

As the world’s leading provider of diagnostic information services, our employees work every day to uncover insights about your body that empower you with the information you need to make your healthcare decisions count.

Making a Difference Every Single Day

3M

Tests are performed annually across the nation

2,563

We have locations across the United States

3,000+

Tests available for all kinds of conditions and specialties

491

We serve many different organizations and industries