Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart

Commonwealth of Massachusetts

Public Health or Welfare Agency in Boston, MA · enumerated 2007 · authorized official David O'Callaghan, Deputy Commissioner for Administrat.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1073730347

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Registry record

Entity type Organization (Type 2)

Legal business name Commonwealth of Massachusetts

Parent organization Commonwealth of Masschusetts

Practice address 1 Ashburton Place 3rd Floor, Boston, MA, 02108

Phone (617) 748-2000

Fax (617) 261-7435

Enumeration date Apr 19, 2007

Last updated in NPPES Mar 10, 2026

Taxonomy & classification

251K00000X Public Health or Welfare Agency Agencies Primary

Authorized official

Name David O'Callaghan

Title Deputy Commissioner for Administrat

Phone (617) 748-2068

Other identifiers

Identifier	Type	State	Issuer
110078190B	Medicaid	MA	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2026-03-10. Verify at npiregistry.cms.hhs.gov.

Where is Commonwealth of Massachusetts located?

The practice location on file with NPPES is in Boston, MA.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-10.