Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Margaret F Larrumbide, M.D.

Pediatrics Physician in West Bridgewater, MA · enumerated 2005.

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

National Provider Identifier

1427052794

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Registry record

Entity type Individual (Type 1)

Name Margaret F Larrumbide

Credential M.D.

Sex Female

Practice address 291 E Center St, West Bridgewater, MA, 02379

Phone (508) 584-1210

Fax (508) 584-6934

Enumeration date Jun 2, 2005

Last updated in NPPES Dec 14, 2016

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License H6366 (TX) Secondary

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 268922 (MA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
121025405	Medicaid	TX	-

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

What specialty is Margaret Larrumbide?

Margaret Larrumbide is registered in NPPES with the primary taxonomy of Pediatrics Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-12-14.