NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Barbara Jeanne Larson, PA-C

Medical Physician Assistant in Plymouth, MA · enumerated 2006 · practices at Pulmonary & Primary Care Associates of Plymouth, PC.

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

National Provider Identifier

1700847506

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Registry record

Entity type Individual (Type 1)
Name Barbara Jeanne Larson
Credential PA-C
Sex Female
Practice address Plymouth, MA, 02360
Fax (508) 747-1410
Enumeration date Mar 31, 2006
Last updated in NPPES Sep 14, 2020

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License MA002657L (PA) Secondary
363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License MA002657L (PA) Secondary
363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA4622 (MA) Primary

Other identifiers

Identifier Type State Issuer
138350 Other PA HEALTHAMERICA
2517979 Other PA UNITEDHEALTHCARE
242966YHMK Other PA MEDICARE PTAN

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 Barbara Larson?
Barbara Larson is registered in NPPES with the primary taxonomy of Medical Physician Assistant. 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-09-14.