NPPES file of Aug 9, 2026

Find an organization's NPI

342 active organization NPIs are registered under names beginning "Quest Diagnostics". Each location can bill under its own NPI, so add the city to find the one you need.

251 to 275 of 342, exact name first

  1. Quest Diagnostics Incorporated

    Clinical Medical Laboratory · Midlothian, VA · issued Mar 13, 2025

    1609676352
  2. Quest Diagnostics Incorporated Ma

    Clinical Medical Laboratory · Fall River, MA · issued Nov 30, 2011

    1821365180
  3. Quest Diagnostics Incorporated Ma

    Clinical Medical Laboratory · Marlborough, MA · issued Jun 14, 2013

    1659710424
  4. Quest Diagnostics Incorporated Ma

    Clinical Medical Laboratory · Plymouth, MA · issued Apr 20, 2010

    1407172109
  5. Quest Diagnostics Incorporated Md

    Clinical Medical Laboratory · Baltimore, MD · issued Nov 29, 2006

    1245307818
  6. Quest Diagnostics Incorporated Md

    Clinical Medical Laboratory · Chevy Chase, MD · issued Jul 18, 2006

    1952329906
  7. Quest Diagnostics Incorporated Md

    Clinical Medical Laboratory · Glen Burnie, MD · issued Jul 18, 2006

    1386662336
  8. Quest Diagnostics Incorporated Md

    Clinical Medical Laboratory · Lutherville, MD · issued Mar 9, 2022

    1407503485
  9. Quest Diagnostics Incorporated Md

    Clinical Medical Laboratory · Rockville, MD · issued Apr 12, 2007

    1467676445
  10. Quest Diagnostics Incorporated Md

    Clinical Medical Laboratory · Falls Church, VA · issued Jul 18, 2006

    1851319800
  11. Quest Diagnostics Incorporated Md

    Clinical Medical Laboratory · Henrico, VA · issued Jul 23, 2025

    1265314074
  12. Quest Diagnostics Incorporated Md

    Clinical Medical Laboratory · Martinsburg, WV · issued Jan 6, 2015

    1730577206
  13. Quest Diagnostics Incorporated Mi

    Clinical Medical Laboratory · Baldwin, MI · issued Mar 20, 2012

    1225303480
  14. Quest Diagnostics Incorporated Mi

    Clinical Medical Laboratory · Berkley, MI · issued Jul 18, 2006

    1053339002
  15. Quest Diagnostics Incorporated Mi

    Clinical Medical Laboratory · Bingham Farms, MI · issued Jul 18, 2006

    1326066374
  16. Quest Diagnostics Incorporated Mi

    Clinical Medical Laboratory · Cadillac, MI · issued Mar 20, 2012

    1215202486
  17. Quest Diagnostics Incorporated Mi

    Clinical Medical Laboratory · Clarkston, MI · issued Jun 23, 2011

    1033405410
  18. Quest Diagnostics Incorporated Mi

    Clinical Medical Laboratory · Flint, MI · issued Apr 28, 2006

    1124085576
  19. Quest Diagnostics Incorporated Mi

    Clinical Medical Laboratory · Kentwood, MI · issued Jul 18, 2006

    1629096680
  20. Quest Diagnostics Incorporated Mi

    Clinical Medical Laboratory · Lansing, MI · issued Mar 1, 2011

    1346548260
  21. Quest Diagnostics Incorporated Mi

    Clinical Medical Laboratory · Rochester Hills, MI · issued Mar 16, 2009

    1861633216
  22. Quest Diagnostics Incorporated Mi

    Clinical Medical Laboratory · Royal Oak, MI · issued Apr 30, 2014

    1689084667
  23. Quest Diagnostics Incorporated Mi

    Clinical Medical Laboratory · Saginaw, MI · issued Jul 18, 2006

    1922026541
  24. Quest Diagnostics LLC Il

    Clinical Medical Laboratory · Clinton, IA · issued Oct 9, 2023

    1750162467
  25. Quest Diagnostics LLC Il

    Clinical Medical Laboratory · Davenport, IA · issued Oct 9, 2023

    1366223166

Source: CMS NPPES monthly file of Aug 9, 2026, organization (Type 2) records.