Contact Billing Customer Service
Call one of our Patient Billing Customer Service Centers based on your area of interest below:
| LOCATION | CITY | TELEPHONE NUMBER |
|---|---|---|
| CANADA | 1 (866)930-3718 (calls from Canada only) | |
| CA | Sacramento | 1 (800)952-5691 |
| CA | West Hills | 1 (800)758-6047 |
| CO | Denver | 1 (800)433-4988 |
| CT | Wallingford | 1 (800)933-2009 |
| FL | Miami | 1 (800)743-7440 |
| FL | Tampa | 1 (800)488-8890 |
| GA | Atlanta | 1 (800)366-6635 |
| IL | Wood Dale | 1 (800)888-8333 |
| KS | Lenexa | 1 (800)759-2789 |
| LA | New Orleans | 1 (800)759-2758 |
| MA | Cambridge | 1 (800)253-2743 |
| MD | Baltimore | 1 (800)257-4706 |
| MI | Auburn Hills | 1 (800)678-6754 |
| NJ | Teterboro | 1 (800)631-1388 |
| NV | Las Vegas | 1 (800)433-2750 |
| NY | Syosset | 1 (866)865-2805 |
| OH | Cincinnati | 1 (800)759-2790 |
| PA | Philadelphia | 1 (800)766-2604 |
| PA | Pittsburgh | 1 (800)837-3177 |
| TN | Nashville | 1 (800)766-0595 |
| TX | Dallas | 1 (800)694-0247 |
| TX | Houston | 1 (866)846-4021 |
| WA | Seattle | 1 (866)846-4027 |
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) 426-4702, or Nichols Institute, Valencia at 1(800) 421-7110 (options 2#, 7, 2) or Nichols Institute, Chantilly at 1(800) 336-3718 (option 4).
Quest Diagnostics Clinical Trials
Please call our Clinical Trials Customer Service number at 1(800) 877-7004.