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.

26 to 50 of 342, exact name first

  1. Quest Diagnostics LLC

    Clinical Medical Laboratory · Chicago, IL · issued Feb 2, 2021

    1083205942
  2. Quest Diagnostics LLC

    Clinical Medical Laboratory · Chicago, IL · issued Feb 2, 2021

    1730770751
  3. Quest Diagnostics LLC

    Clinical Medical Laboratory · Chicago, IL · issued Feb 3, 2021

    1851982623
  4. Quest Diagnostics LLC

    Clinical Medical Laboratory · Chicago, IL · issued Mar 1, 2021

    1609460765
  5. Quest Diagnostics LLC

    Clinical Medical Laboratory · Chicago, IL · issued Mar 23, 2021

    1568048205
  6. Quest Diagnostics LLC

    Clinical Medical Laboratory · East Moline, IL · issued Oct 9, 2023

    1992586606
  7. Quest Diagnostics LLC

    Clinical Medical Laboratory · Moline, IL · issued Oct 10, 2023

    1962283655
  8. Quest Diagnostics LLC

    Clinical Medical Laboratory · Rock Island, IL · issued Oct 10, 2023

    1912788506
  9. Quest Diagnostics

    Clinical Medical Laboratory · Wichita, KS · issued Mar 15, 2007

    1811021447
  10. Quest Diagnostics LLC

    Clinical Medical Laboratory · Fall River, MA · issued May 21, 2024

    1760221592
  11. Quest Diagnostics LLC

    Clinical Medical Laboratory · Marlborough, MA · issued Jun 21, 2006

    1952347791
  12. Quest Diagnostics LLC

    Clinical Medical Laboratory · Natick, MA · issued May 21, 2024

    1730928565
  13. Quest Diagnostics LLC

    Clinical Medical Laboratory · North Dartmouth, MA · issued May 16, 2024

    1225887615
  14. Quest Diagnostics LLC

    Clinical Medical Laboratory · North Dartmouth, MA · issued May 21, 2024

    1881433605
  15. Quest Diagnostics LLC

    Clinical Medical Laboratory · Bangor, ME · issued May 9, 2023

    1659061190
  16. Quest Diagnostics LLC

    Clinical Medical Laboratory · Minneapolis, MN · issued Oct 26, 2021

    1376207399
  17. Quest Diagnostics

    Clinical Medical Laboratory · Saint Cloud, MN · issued Oct 2, 2007

    1811184971
  18. Quest Diagnostics LLC

    Clinical Medical Laboratory · Derry, NH · issued Jul 18, 2006

    1073531638
  19. Quest Diagnostics

    Clinical Medical Laboratory · Staten Island, NY · issued Dec 13, 2006

    1174684856
  20. Quest Diagnostics

    Clinical Medical Laboratory · Jackson, OH · issued Jul 14, 2020

    1922616168
  21. Quest Diagnostics

    Clinical Medical Laboratory · Piketon, OH · issued Aug 18, 2020

    1649882028
  22. Quest Diagnostics

    Clinical Medical Laboratory · Portsmouth, OH · issued Aug 16, 2020

    1063023612
  23. Quest Diagnostics

    Clinical Medical Laboratory · Waverly, OH · issued Sep 29, 2020

    1821605338
  24. Quest Diagnostics

    Clinical Medical Laboratory · Norristown, PA · issued Feb 22, 2013

    1194065557
  25. Quest Diagnostics LLC

    Clinical Medical Laboratory · Johnston, RI · issued Jul 18, 2006

    1447278403

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