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  LABORATORY  CITY  CUSTOMER SERVICE  
  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 

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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