NPPES file of Aug 9, 2026

Find an organization's NPI

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

1 to 8 of 8, exact name first

  1. Quest Diagnostics Incorporated Md

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

    1245307818
  2. Quest Diagnostics Incorporated Md

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

    1952329906
  3. Quest Diagnostics Incorporated Md

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

    1386662336
  4. Quest Diagnostics Incorporated Md

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

    1407503485
  5. Quest Diagnostics Incorporated Md

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

    1467676445
  6. Quest Diagnostics Incorporated Md

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

    1851319800
  7. Quest Diagnostics Incorporated Md

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

    1265314074
  8. Quest Diagnostics Incorporated Md

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

    1730577206

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