Number of Quest Diagnostics clinics in the United States in 2025

Last updated on July 28, 2025
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How many Quest Diagnostics clinics are there in the United States?

There are 5,787 Quest Diagnostics clinics in the United States as of July 28, 2025. The state and territory with the most number of Quest Diagnostics locations in the US is Texas, with 660 clinics, which is about 11% of all Quest Diagnostics clinics in the US.

5,787
Locations
52
States and Territories
2,476
Cities
Map of Quest Diagnostics clinics in the United States


How can I download a list of Quest Diagnostics clinics in the United States into Excel?

You can download the complete list of 5,787 Quest Diagnostics locations data as an Excel file, along with geo-coded addresses, phone numbers and open hours from our data store.

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Top 10 States and Territories with the most Quest Diagnostics clinics

Texas

660 (11%)

A clinic for every 43,933 people, in Texas with about 11% of the total number of Quest Diagnostics clinics


California

633 (11%)

A clinic for every 62,420 people, in California with about 11% of the total number of Quest Diagnostics clinics


Florida

479 (8%)

A clinic for every 44,839 people, in Florida with about 8% of the total number of Quest Diagnostics clinics


State / Territory Number of clinics Population Population per clinic
Texas 660 (11%) 29.00M 43.93K
California 633 (11%) 39.51M 62.42K
Florida 479 (8%) 21.48M 44.84K
New York 380 (7%) 19.45M 51.20K
Ohio 256 (4%) 11.69M 45.66K
Pennsylvania 236 (4%) 12.80M 54.25K
Georgia 213 (4%) 10.62M 49.84K
New Jersey 202 (3%) 8.88M 43.97K
Tennessee 189 (3%) 6.83M 36.13K
Illinois 179 (3%) 12.67M 70.79K

There are Quest Diagnostics clinics in 54 states and territories in the United States

States and Territories without any Quest Diagnostics clinics

These states and territories do not have any Quest Diagnostics clinics

  • U.S. Virgin Islands
  • American Samoa
  • Northern Mariana Islands
  • Guam

There are 4 states and territories without Quest Diagnostics clinics in the United States

Cities with the most number of Quest Diagnostics clinics in the United States

City State / Territory Number of Locations
Houston Texas 68
New York New York 54
Brooklyn New York 44
San Antonio Texas 43
Jacksonville Florida 35
Austin Texas 29
Orlando Florida 28
Las Vegas Nevada 27
Bronx New York 27
Dallas Texas 26

Download the complete database of Quest Diagnostics Locations in USA

You can download the full list of Quest Diagnostics locations used for this analysis from our data store. Here is a random sample of 10 records for you to look at the fields and the data that we provide.

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Name Street City State / Territory Zip Code Phone Latitude Longitude Address Country Last Updated Date
Quest Diagnostics - Indio Doctor Carreon Boulevard 81-715 Dr Carreon Blvd Ste A-4 Indio CA 92201 442-241-5914 33.7071014 -116.2388595 81-715 Dr Carreon Blvd Ste A-4, Indio, CA, 92201 USA 2025-07-28
Arcpoint Labs Of Downtown San Jose (Preferred) 25 N 14th St Ste 160 San Jose CA 95112 415-991-2780 37.3429654 -121.8779189 25 N 14th St Ste 160, San Jose, CA, 95112 USA 2025-07-28
Mogo Urgent Care (Preferred) 2020 Del Monte Ave Monterey CA 93940 831-622-6930 36.6005341 -121.8690288 2020 Del Monte Ave, Monterey, CA, 93940 USA 2025-07-28
Uchealth - Northfield (Preferred) 4660 Yosemite St Ste 100 Denver CO 80238 720-516-8906 39.7813294 -104.8846751 4660 Yosemite St Ste 100, Denver, CO, 80238 USA 2025-07-28
Hospital Of Central Connecticut (Preferred) 440 New Britain Ave Plainville CT 06062 860-827-6910 41.67033683 -72.82924912 440 New Britain Ave, Plainville, CT, 06062 USA 2025-07-28
Fl Musculoskeletal Inst (Preferred) 910 Old Camp Rd Ste 110 The Villages FL 32162 352-753-6566 28.9057889 -81.9724675 910 Old Camp Rd Ste 110, The Villages, FL, 32162 USA 2025-07-28
Lee Conv Care - Metro (Preferred) 13340 Metro Pkwy Ste 100 Fort Myers FL 33966 239-343-0490 26.5483092 -81.8533845 13340 Metro Pkwy Ste 100, Fort Myers, FL, 33966 USA 2025-07-28
Quest Diagnostics - Tallahassee Eastwood 1605 E Plaza Drive Tallahassee FL 32308 850-666-0567 30.456689 -84.237956 1605 E Plaza Drive, Tallahassee, FL, 32308 USA 2025-07-28
Ascension St. Vincent's Uc - Mandarin (Preferred) 10503 San Jose Blvd Jacksonville FL 32257 904-450-6670 30.1868666 -81.6263186 10503 San Jose Blvd, Jacksonville, FL, 32257 USA 2025-07-28
American Safety Services, Inc (Preferred) 3215 Fruitvale Ave Bakersfield CA 93308 661-589-7635 35.388231 -119.075531 3215 Fruitvale Ave, Bakersfield, CA, 93308 USA 2025-07-28

* Open hours are not displayed here as it is too big to show on a reasonably sized screen.

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