NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Robert Lonigro, MD

Internal Medicine Physician in Marshfield, MA · enumerated 2006 · practices at Robert Lonigro, MD, PC.

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

National Provider Identifier

1477514545

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Registry record

Entity type Individual (Type 1)
Name Dr. Robert Lonigro
Credential MD
Sex Male
Practice address 45 Paddock Way, Marshfield, MA, 02050
Fax (781) 846-7687
Enumeration date Mar 29, 2006
Last updated in NPPES Nov 24, 2010

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 76441 (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
3104133 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.

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Frequently asked questions

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.
What specialty is Robert Lonigro?
Robert Lonigro is registered in NPPES with the primary taxonomy of Internal Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-11-24.