NPPES file of Aug 9, 2026

Commonwealth Care Alliance

Commonwealth Care Alliance holds 7 active organization NPIs in the federal registry, with practice locations in 5 Massachusetts cities. 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

Charlestown has the most NPIs, 3

  1. Charlestown3
  2. Boston1
  3. Dorchester Center1
  4. Hatfield1
  5. Tewksbury1

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

Most NPIs were issued in 2014 and 2016

Commonwealth Care Alliance NPIs by year issued2014: 2, 2015: 0, 2016: 5024620142015201625
Commonwealth Care Alliance NPIs by year issued2014: 2, 2015: 0, 2016: 5024620142015201625
Commonwealth Care Alliance NPIs by year issued2014: 2, 2015: 0, 2016: 5024620142015201625

Source: CMS NPPES, enumeration dates.

5 NPIs were issued in 2016 alone, more than in any other year; none in 1 of the years between.

Charlestown locations

The city with the most Commonwealth Care Alliance NPIs. The full list of all 7 follows.

NPILocationPrimary taxonomyIssued
1295195162529 MAIN ST SUITE 216, CharlestownHealth Maintenance OrganizationMar 4, 2016
1922460104529 MAIN ST SUITE 222, CharlestownHealth Maintenance OrganizationMar 25, 2016
1669924783529 MAIN ST, CharlestownExclusive Provider OrganizationOct 25, 2016
All 7 locations, by city
NPILocationPrimary taxonomyIssued
185179754230 WINTER ST, BostonExclusive Provider OrganizationNov 7, 2014
1295195162529 MAIN ST SUITE 216, CharlestownHealth Maintenance OrganizationMar 4, 2016
1922460104529 MAIN ST SUITE 222, CharlestownHealth Maintenance OrganizationMar 25, 2016
1669924783529 MAIN ST, CharlestownExclusive Provider OrganizationOct 25, 2016
10638151082100 DORCHESTER AVE, Dorchester CenterRespite CareOct 3, 2014
1942756077501 MAIN ST, HatfieldHealth Maintenance OrganizationAug 29, 2016
1609239813100 BLIGH ST, TewksburyCase Management AgencyApr 4, 2016

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 Commonwealth Care Alliance 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. Commonwealth Care Alliance's NPIs list practice locations in 5 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.