Quest Diagnostics Clinical Lab
Quest Diagnostics Clinical Lab holds 6 active organization NPIs in the federal registry, with practice locations in 6 cities in 5 states. All list clinical medical laboratory as their primary taxonomy; each location can bill under its own NPI.
Search the organization with your city to find the NPI for the location you visit or bill.
Find a location's NPIWilmington, DE has the most NPIs, 1
Source: CMS NPPES monthly file of Aug 9, 2026, organization NPIs by practice city.
Most NPIs were issued in 2006 and 2007
Source: CMS NPPES, enumeration dates.
5 NPIs were issued in 2006 alone, more than in any other year.
Wilmington, DE locations
The city with the most Quest Diagnostics Clinical Lab NPIs. The full list of all 6 follows.
| NPI | Location | Primary taxonomy | Issued |
|---|---|---|---|
| 1003834060 | 2055 LIMESTONE RD STE 111, Wilmington, DE | Clinical Medical Laboratory | Jul 18, 2006 |
All 6 locations, by state and city
| NPI | Location | Primary taxonomy | Issued |
|---|---|---|---|
| 1003834060 | 2055 LIMESTONE RD STE 111, Wilmington, DE | Clinical Medical Laboratory | Jul 18, 2006 |
| 1922026970 | 2900 FRANK SCOTT PKWY W, Belleville, IL | Clinical Medical Laboratory | Jul 18, 2006 |
| 1275560906 | 2464 FORTUNE DRIVE SUITE 120, Lexington, KY | Clinical Medical Laboratory | Jun 27, 2006 |
| 1295874378 | 12855 N 40 DR STE 200, Saint Louis, MO | Clinical Medical Laboratory | Feb 6, 2007 |
| 1356369318 | 1001 S 70TH ST STE 111, Lincoln, NE | Clinical Medical Laboratory | Jul 18, 2006 |
| 1811915879 | 10020 NICHOLAS ST STE 102, Omaha, NE | Clinical Medical Laboratory | Jul 18, 2006 |
Checking an organization
- Match the NPI to the exact location you will visit or bill; each location can have its own.
- Confirm the business entity with the secretary of state.
- Check the HHS-OIG exclusion list for the organization and its owners.
- Verify each clinician you will see on their own record and with the state license search.
Common questions
Why does Quest Diagnostics Clinical Lab have 6 NPIs?
An organization may obtain more than one Type 2 NPI, for example for separate locations or units that bill on their own. Quest Diagnostics Clinical Lab's NPIs list practice locations in 6 cities.
Is an organization NPI a license?
No. An NPI identifies who bills. Facilities and the clinicians who work there are licensed separately by the state.
Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov). An NPI identifies who bills; it is not a license.