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 8400
CA San Jose 1(800) 288-9850, option 2
CA Specialty - Valencia 1(800) 421-4449
CA West Hills 1(800) 597-1700
CO Denver 1(800) 765-2655
CT Wallingford 1(800) 982-6810
FL Miramar 1(800) 800-1749 ext 4600
FL Tampa 1(800) 282-6613
GA Atlanta 866 MYQUEST - 1(866) 697-8378
IL Wood Dale 866 MYQUEST - 1(866) 697-8378
KS Kansas City 1(866) 669-7525, option 6
KS Lenexa 1(866) 275-8290
LA New Orleans 1(800) 669-0920
MA Cambridge 1(800) 842-1412
MD Baltimore 1(800) 787-4847
MI Auburn Hills 866 MYQUEST - 1(866) 697-8378
MO St. Louis 1(800) 669-7525, option 6
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) 222-7941
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 1(800) 824-6152, option 1
TX Houston 1(800) 669-6605
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.

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