Contact Customer Service
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.
| STATE | LOCATION | TELEPHONE NUMBER |
|---|---|---|
| CA | Nichols - SJC | 1(800) 553-5445 |
| CA | Sacramento | 1(800) 952-5691, option 1 |
| CA | San Jose | 1(800) 288-9850, option 2 |
| CA | Specialty - Valencia | 1(800) 421-4449 |
| CA | West Hills | 866 MYQUEST (1-866-697-8378) |
| CO | Denver | 1(800) 765-2655 |
| CT | Wallingford | 866 MYQUEST (1-866-697-8378) |
| FL | Miramar | 866 MYQUEST (1-866-697-8378) |
| FL | Tampa | 866 MYQUEST (1-866-697-8378) |
| GA | Atlanta | 866 MYQUEST (1-866-697-8378) |
| IL | Wood Dale | 866 MYQUEST (1-866-697-8378) |
| KS | Kansas City | 866 MYQUEST (1-866-697-8378) |
| KS | Lenexa | 866 MYQUEST (1-866-697-8378) |
| LA | New Orleans | 1(800) 669-0920 |
| MA | Cambridge | 866 MYQUEST (1-866-697-8378) |
| MD | Baltimore | 866 MYQUEST (1-866-697-8378) |
| MI | Auburn Hills | 866 MYQUEST (1-866-697-8378) |
| MO | St. Louis | 866 MYQUEST (1-866-697-8378) |
| NJ | Teterboro | 1(800) 631-1390, option 4 |
| NV | Las Vegas | 1(800) 433-2750 |
| NY | Syosset | 1(800) 877-7530, option 5 |
| OH | Cincinnati | 1(866) 508-1523 |
| OK | Oklahoma City | 1(800) 891-2917, option 2 |
| OR | Portland | 1(800) 877-0052 |
| PA | Erie | 1(814) 461-2420 |
| PA | Horsham | 866 MYQUEST (1-866-697-8378) |
| PA | Pittsburgh | 1(800) 295-6598 |
| TN | Nashville | 866 MYQUEST (1-866-697-8378) |
| TX | Dallas | 866 MYQUEST (1-866-697-8378) |
| TX | Houston | 866 MYQUEST (1-866-697-8378) |
| VA | Nichols - Chantilly | 1(800) 336-3718 |
| WA | Seattle | 1(800) 877-0052 |
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.