Call one of our Customer Service Centers based on your area of interest below:
Quest Diagnostics Regional Laboratories
Please call our Customer Service Center at the laboratory that provides service to you.
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| STATE | LABORATORY | CITY | CUSTOMER SERVICE | |||||||
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| CA | West Hills | Southern CA | 1(800) 877-2515 | |||||||
| CA | San Diego | San Diego | 1(800) 848-4225 | |||||||
| CA | Sacramento | Sacramento | 1(800) 952-5691 | |||||||
| CA | San Jose | San Jose | 1(800) 288-9850 | |||||||
| CO | Denver | Denver | 1(800) 765-2655 | |||||||
| CT | Wallingford | Wallingford | 1(800) 982-6810 | |||||||
| FL | Deerfield Beach | Deerfield Beach | 1(800) 800-1749 | |||||||
| FL | Miami | Miramar | 1(800) 800-1749 | |||||||
| FL | Tampa | Tampa | 1(800) 282-6613, ext. 4000 | |||||||
| GA | Atlanta | Tucker | 1(800) 877-8805 | |||||||
| IL | Chicago | Wood Dale | 1(800) 323-5917 | |||||||
| IL | Chicago | Schaumburg | 1(800) 669-6995 | |||||||
| KY | Lexington | Lexington | 1(800) 366-7522 | |||||||
| LA | New Orleans | Metairie | 1(800) 669-0920 | |||||||
| MA | Boston | Cambridge | 1(800) 225-5714 | |||||||
| MD | Baltimore | Baltimore | 1(800) 722-7393 | |||||||
| MI | Detroit | Auburn Hills | 1(800) 444-0106 | |||||||
| MO | St Louis | St. Louis | 1(800) 669-7525 | |||||||
| NE | Lincoln | Lincoln | 1(800) 742-7414 | |||||||
| NJ | Teterboro | Teterboro | 1(800) 631-1390 | |||||||
| NV | Las Vegas | Las Vegas | 1(800) 433-2750 | |||||||
| NY | Long Island | Syosset | 1(800) 877-7530 | |||||||
| OH | Cincinnati | Cincinnati | 1(866) 508-1523 | |||||||
| OR | Portland | Portland | 1(800) 222-7941 | |||||||
| PA | Philadelphia | Horsham | 1(800) 825-7320 | |||||||
| PA | Pittsburgh | Pittsburgh | 1(800) 295-6598 | |||||||
| TN | Nashville | Nashville | 1(800) 877-3774 | |||||||
| TX | Dallas | Irving | 1(800) 824-6152 | |||||||
| TX | Houston | Houston | 1(800) 669-6605 | |||||||
| WA | Seattle | Seattle | 1(800) 877-0052 | |||||||
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Quest Diagnostics Employer Customer Service
Please call our Employer Customer Service number at 1(800) 877-7484.
Quest Diagnostics Nichols Institute
Please call our Nichols Institute, San Juan Capistrano at 1(800) 553-5445, or Nichols Institute, Chantilly at 1 (800) 336-3718, ext. 3000.
Quest Diagnostics Clinical Trials
Please call our Clinical Trials Customer Service number at 1(800) 877-7004.