Registry data as of Aug 27, 2026

Quest Diagnostics Massachusetts

Quest Diagnostics Massachusetts holds 35 active organization NPIs in the federal registry, with practice locations in 23 Massachusetts cities. 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

Worcester has the most NPIs, 7

  1. Worcester7
  2. Dorchester2
  3. East Boston2
  4. Hyannis2
  5. Milford2
  6. Shrewsbury2
  7. Westborough2
  8. Auburn1

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

Most NPIs were issued in 2006 and 2013

Quest Diagnostics Massachusetts NPIs by year issued2006: 6, 2007: 0, 2008: 0, 2009: 1, 2010: 2, 2011: 0, 2012: 4, 2013: 13, 2014: 2, 2015: 0, 2016: 0, 2017: 1, 2018: 4, 2019: 1, 2020: 0, 2021: 0, 2022: 0, 2023: 0, 2024: 1051015200620082010201220142016201820202022202462013: 1312421411
Quest Diagnostics Massachusetts NPIs by year issued2006: 6, 2007: 0, 2008: 0, 2009: 1, 2010: 2, 2011: 0, 2012: 4, 2013: 13, 2014: 2, 2015: 0, 2016: 0, 2017: 1, 2018: 4, 2019: 1, 2020: 0, 2021: 0, 2022: 0, 2023: 0, 2024: 1051015200620072008200920102011201220132014201520162017201820192020202120222023202461312421411
Quest Diagnostics Massachusetts NPIs by year issued2006: 6, 2007: 0, 2008: 0, 2009: 1, 2010: 2, 2011: 0, 2012: 4, 2013: 13, 2014: 2, 2015: 0, 2016: 0, 2017: 1, 2018: 4, 2019: 1, 2020: 0, 2021: 0, 2022: 0, 2023: 0, 2024: 1051015200620092012201520182021202462013: 13

Source: CMS NPPES, enumeration dates.

13 NPIs were issued in 2013 alone, more than in any other year; none in 9 of the years between.

Worcester locations

The city with the most Quest Diagnostics Massachusetts NPIs. The full list of all 35 follows.

NPILocationPrimary taxonomyIssued
1295753242100 MLK, JR. BLVD BASEMENT, WorcesterClinical Medical LaboratoryJul 18, 2006
1104844158630 PLANTATION ST, WorcesterClinical Medical LaboratoryJul 18, 2006
104365333019 TACOMA ST SUITE 101, WorcesterClinical Medical LaboratoryApr 17, 2013
1619313863191 MAY ST, WorcesterClinical Medical LaboratoryMay 15, 2013
10335366361 EATON PL, WorcesterClinical Medical LaboratoryMar 21, 2014
1508306747366 SHREWSBURY ST, WorcesterClinical Medical LaboratoryMar 7, 2017
17700479955 NEPONSET ST STE 1581, WorcesterClinical Medical LaboratoryJan 23, 2019
All 35 locations, by city
NPILocationPrimary taxonomyIssued
19425536074 BROTHERTON WAY, AuburnClinical Medical LaboratoryOct 18, 2012
12457305891 PEARL ST, BrocktonClinical Medical LaboratoryFeb 13, 2018
147757142075 MOUNT AUBURN ST, CambridgeClinical Medical LaboratoryJul 18, 2006
1184069593632 BLUE HILL AVE, DorchesterClinical Medical LaboratoryApr 30, 2013
1255776647398 NEPONSET AVE GEIGER GIBSON CHC, DorchesterClinical Medical LaboratoryApr 30, 2013
158890776010 GOVE ST, East BostonClinical Medical LaboratoryApr 5, 2013
1043553225129 BORDER ST, East BostonClinical Medical LaboratoryApr 5, 2013
122545580164 BOYDEN RD, HoldenClinical Medical LaboratoryMar 21, 2014
151810981851 MAIN ST, HyannisClinical Medical LaboratoryApr 1, 2009
190239062869 CAMP ST, HyannisClinical Medical LaboratoryJun 16, 2018
1104179860225 NEW LANCASTER RD, LeominsterClinical Medical LaboratoryOct 18, 2012
1194062448200 FOREST ST 3RD FLOOR,SUITE A, MarlboroughClinical Medical LaboratoryJan 7, 2013
13567867351575 BLUE HILL AVE, MattapanClinical Medical LaboratoryApr 30, 2013
1164868303176 WEST ST, MilfordClinical Medical LaboratoryMay 15, 2013
1407343056101 CEDAR ST, MilfordClinical Medical LaboratoryApr 19, 2018
113442152231 PINE ST 1ST FLOOR, REAR, NorfolkClinical Medical LaboratoryNov 17, 2010
158893494749 HARRY KEMP WAY ROOM 2, ProvincetownClinical Medical LaboratoryJan 3, 2012
1801814868378 MAPLE AVE, ShrewsburyClinical Medical LaboratoryJul 18, 2006
1962745141222 MAPLE AVE, ShrewsburyClinical Medical LaboratoryApr 5, 2013
1861837254409 W BROADWAY, South BostonClinical Medical LaboratoryApr 30, 2013
175015276524 NEWTON ST, SouthboroughClinical Medical LaboratoryJan 10, 2024
1093733057909 SUMNER ST BSMT, StoughtonClinical Medical LaboratoryJul 18, 2006
19725215088 BURNHAM ST, Turners FallsClinical Medical LaboratoryJul 18, 2006
1801101068344 THOMPSON RD, WebsterClinical Medical LaboratoryAug 12, 2010
10637823083130 STATE HIGHWAY ROOM 2, WellfleetClinical Medical LaboratoryJan 4, 2012
1255777496106 E MAIN ST, WestboroughClinical Medical LaboratoryMay 15, 2013
1023505674900 UNION ST, WestboroughClinical Medical LaboratoryApr 19, 2018
1295753242100 MLK, JR. BLVD BASEMENT, WorcesterClinical Medical LaboratoryJul 18, 2006
1104844158630 PLANTATION ST, WorcesterClinical Medical LaboratoryJul 18, 2006
104365333019 TACOMA ST SUITE 101, WorcesterClinical Medical LaboratoryApr 17, 2013
1619313863191 MAY ST, WorcesterClinical Medical LaboratoryMay 15, 2013
10335366361 EATON PL, WorcesterClinical Medical LaboratoryMar 21, 2014
1508306747366 SHREWSBURY ST, WorcesterClinical Medical LaboratoryMar 7, 2017
17700479955 NEPONSET ST STE 1581, WorcesterClinical Medical LaboratoryJan 23, 2019
19627450671 INNOVATION DRIVE BIOTECH 3, WorceterClinical Medical LaboratoryMar 27, 2013

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 Massachusetts have 35 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 Massachusetts's NPIs list practice locations in 23 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.