NPPES file of Aug 9, 2026

Quest Diagnostics Of Pennsylvania

Quest Diagnostics Of Pennsylvania holds 7 active organization NPIs in the federal registry, with practice locations in 6 cities in 3 states. All list clinical medical laboratory as their primary taxonomy; each location can bill under its own NPI.

CMS NPPES registry, file of Aug 9, 2026 · legal names grouped after punctuation and "LLC" are removed · method · Verify with CMS →

Which NPI is yours?

Search the organization with your city to find the NPI for the location you visit or bill.

Find a location's NPI

Pittsburgh, PA has the most NPIs, 2

  1. Pittsburgh, PA2
  2. Buffalo, NY1
  3. North Syracuse, NY1
  4. Boardman, OH1
  5. Twinsburg, OH1
  6. Warren, OH1

Source: CMS NPPES monthly file of Aug 9, 2026, organization NPIs by practice city.

Most NPIs were issued in 2006 and 2008

Quest Diagnostics Of Pennsylvania NPIs by year issued2006: 5, 2007: 0, 2008: 2024620062007200852
Quest Diagnostics Of Pennsylvania NPIs by year issued2006: 5, 2007: 0, 2008: 2024620062007200852
Quest Diagnostics Of Pennsylvania NPIs by year issued2006: 5, 2007: 0, 2008: 2024620062007200852

Source: CMS NPPES, enumeration dates.

5 NPIs were issued in 2006 alone, more than in any other year; none in 1 of the years between.

Pittsburgh, PA locations

The city with the most Quest Diagnostics Of Pennsylvania NPIs. The full list of all 7 follows.

NPILocationPrimary taxonomyIssued
1578520946875 GREENTREE RD, Pittsburgh, PAClinical Medical LaboratoryApr 28, 2006
1841236684875 GREENTREE RD FOUR PARKWAY CENTER, Pittsburgh, PAClinical Medical LaboratoryJun 21, 2006
All 7 locations, by state and city
NPILocationPrimary taxonomyIssued
13664603211 SYLVAN PKWY, Buffalo, NYClinical Medical LaboratoryJul 18, 2006
1336167964200 GATEWAY PARK DR BLDG A, North Syracuse, NYClinical Medical LaboratoryJul 18, 2006
1962659656835 SOUTHWESTERN RUN LABORATORY, Boardman, OHClinical Medical LaboratoryAug 25, 2008
12058548172451 EDISON BLVD, Twinsburg, OHClinical Medical LaboratoryJul 18, 2006
1275780967700 HOWLAND WILSON RD SE, Warren, OHClinical Medical LaboratoryAug 25, 2008
1578520946875 GREENTREE RD, Pittsburgh, PAClinical Medical LaboratoryApr 28, 2006
1841236684875 GREENTREE RD FOUR PARKWAY CENTER, Pittsburgh, PAClinical Medical LaboratoryJun 21, 2006

Checking an organization

  1. Match the NPI to the exact location you will visit or bill; each location can have its own.
  2. Confirm the business entity with the secretary of state.
  3. Check the HHS-OIG exclusion list for the organization and its owners.
  4. Verify each clinician you will see on their own record and with the state license search.

Common questions

Why does Quest Diagnostics Of Pennsylvania have 7 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 Of Pennsylvania'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.