Updated September 2026 Medical Laboratories

Location report

Quest Diagnostics locations in United States

Quest Diagnostics operates clinical laboratory patient service centers providing routine and specialized diagnostic testing across the United States.

The current dataset contains 2,254 Quest Diagnostics locations in United States, updated September 2026. Review regional coverage, fields, and sample records before downloading.

View sample records

Locations

2,254

States

49

Cities

1,456

ZIP codes

1,992

Geographic footprint

National location distribution

Quest Diagnostics store locations map

Regional coverage

Top states

01 California 369 16.4%
02 Florida 264 11.7%
03 Texas 196 8.7%
04 New York 161 7.1%
05 Pennsylvania 137 6.1%
06 Ohio 129 5.7%
07 Connecticut 89 3.9%
08 Massachusetts 71 3.1%
09 New Jersey 69 3.1%
10 Oklahoma 69 3.1%

Footprint summary

How locations are distributed

Largest state

369 locations

California

Largest-region share

Concentration in California

16.4%

Top three share

829 locations combined

36.8%

Locations per city

Average across 1,456 cities

1.5

ZIP codes represented

Distinct areas in this report

1,992

Dataset details

12 delivered fields

12 complete

location_id Complete
name Complete
street_address Complete
city Complete
state Complete
zip_code Complete
country Complete
latitude Complete
longitude Complete
phone Complete
source_url Complete
hours Complete

Sample records

First 8 rows · Values shown as delivered

Sample records from the complete dataset
location_id name street_address city state zip_code country latitude longitude phone source_url hours
COH Quest Diagnostics - Cohasset 223 Chief Justice Cushing Hwy, Lower Level 3 Cohasset Massachusetts 02025 US 42.239633 -70.830463 +17813830180 https://www.questdiagnostics.com/locations/detail.html/COH/02025/75/1 {"Friday":[{"closes":"16:00","opens":"07:30"}],"Monday":[{"closes":"16:00","opens":"07:30"}],"Saturday":[],"Sunday":[],"Thursday":[{"closes":"16:00","opens":"07:30"}],"Tuesday":[{"closes":"16:00","opens":"07:30"}],"Wednesday":[{"closes":"16:00","opens":"07:30"}]}
JV Quest Diagnostics - Jacksonville Roosevelt 4509-009 St. Johns Avenue Jacksonville Florida 32210 US 30.288904 -81.721233 +19042547767 https://www.questdiagnostics.com/locations/detail.html/JV/32210/75/1 {"Friday":[{"closes":"15:00","opens":"06:00"}],"Monday":[{"closes":"15:00","opens":"06:00"}],"Saturday":[{"closes":"12:00","opens":"07:00"}],"Sunday":[],"Thursday":[{"closes":"15:00","opens":"06:00"}],"Tuesday":[{"closes":"15:00","opens":"06:00"}],"Wednesday":[{"closes":"15:00","opens":"06:00"}]}
MP Quest Diagnostics - Kendall Drive 11410 N Kendall Dr, Suite 107-109 Miami Florida 33176 US 25.685514 -80.381134 +13055964576 https://www.questdiagnostics.com/locations/detail.html/MP/33176/75/1 {"Friday":[{"closes":"15:30","opens":"05:30"}],"Monday":[{"closes":"15:30","opens":"05:30"}],"Saturday":[{"closes":"11:00","opens":"05:00"}],"Sunday":[],"Thursday":[{"closes":"15:30","opens":"05:30"}],"Tuesday":[{"closes":"15:30","opens":"05:30"}],"Wednesday":[{"closes":"15:30","opens":"05:30"}]}
SPA Quest Diagnostics - Port Arthur 2501 Jimmy Johnson Blvd, Suite 303 Port Arthur Texas 77640 US 29.934506 -93.9891437 +14097295548 https://www.questdiagnostics.com/locations/detail.html/SPA/77640/75/1 {"Friday":[{"closes":"16:00","opens":"07:00"}],"Monday":[{"closes":"16:00","opens":"07:00"}],"Saturday":[],"Sunday":[],"Thursday":[{"closes":"16:00","opens":"07:00"}],"Tuesday":[{"closes":"16:00","opens":"07:00"}],"Wednesday":[{"closes":"16:00","opens":"07:00"}]}
SCT Quest Diagnostics - San Clemente Oceanview 675 Camino De Los Mares, Ste 300 San Clemente California 92673 US 33.4573759 -117.647312 +19493030425 https://www.questdiagnostics.com/locations/detail.html/SCT/92673/75/1 {"Friday":[{"closes":"11:30","opens":"07:00"},{"closes":"15:30","opens":"12:30"}],"Monday":[{"closes":"11:30","opens":"07:00"},{"closes":"15:30","opens":"12:30"}],"Saturday":[{"closes":"12:00","opens":"08:00"}],"Sunday":[],"Thursday":[{"closes":"11:30","opens":"07:00"},{"closes":"15:30","opens":"12:30"}],"Tuesday":[{"closes":"11:30","opens":"07:00"},{"closes":"15:30","opens":"12:30"}],"Wednesday":[{"closes":"11:30","opens":"07:00"},{"closes":"15:30","opens":"12:30"}]}
IPW Quest Diagnostics - Alton 237 E Center Dr, Ste B Alton Illinois 62002 US 38.9262101 -90.172197 +16184655877 https://www.questdiagnostics.com/locations/detail.html/IPW/62002/75/1 {"Friday":[{"closes":"16:00","opens":"07:00"}],"Monday":[{"closes":"16:00","opens":"07:00"}],"Saturday":[{"closes":"13:00","opens":"07:00"}],"Sunday":[],"Thursday":[{"closes":"16:00","opens":"07:00"}],"Tuesday":[{"closes":"16:00","opens":"07:00"}],"Wednesday":[{"closes":"16:00","opens":"07:00"}]}
AA Quest Diagnostics - Anchorage Laurel Street 4120 Laurel St, Ste 103 Anchorage Alaska 99508 US 61.1833834 -149.8351534 +19072011855 https://www.questdiagnostics.com/locations/detail.html/AA/99508/75/1 {"Friday":[{"closes":"16:30","opens":"07:30"}],"Monday":[{"closes":"16:30","opens":"07:30"}],"Saturday":[{"closes":"12:00","opens":"08:00"}],"Sunday":[],"Thursday":[{"closes":"16:30","opens":"07:30"}],"Tuesday":[{"closes":"16:30","opens":"07:30"}],"Wednesday":[{"closes":"16:30","opens":"07:30"}]}
AN Quest Diagnostics - Athens 1000 Hawthorne Ave, Ste Q Athens Georgia 30606 US 33.9697175 -83.4127957 +17065488215 https://www.questdiagnostics.com/locations/detail.html/AN/30606/75/1 {"Friday":[{"closes":"16:00","opens":"07:00"}],"Monday":[{"closes":"16:00","opens":"07:00"}],"Saturday":[],"Sunday":[],"Thursday":[{"closes":"16:00","opens":"07:00"}],"Tuesday":[{"closes":"16:00","opens":"07:00"}],"Wednesday":[{"closes":"16:00","opens":"07:00"}]}