NPI Portal NPI Lookup & Verification

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

Mr. Silvio Mazzella Jr., CDN

Nutrition Education Nutritionist in Bronx, NY · enumerated 2016.

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

National Provider Identifier

1417405119

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Registry record

Entity type Individual (Type 1)
Name Mr. Silvio Mazzella Jr.
Credential CDN
Sex Male
Practice address Bronx, NY, 10457
Enumeration date Sep 12, 2016
Last updated in NPPES Sep 12, 2016

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

Taxonomy & licenses

133NN1002X Nutrition Education Nutritionist Dietary & Nutritional Service Providers · License 000961-1 (NY) Primary
3747A0650X Attendant Care Provider Nursing Service Related Providers · License 000961-1 (NY) Secondary

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 Silvio Mazzella?
Silvio Mazzella is registered in NPPES with the primary taxonomy of Nutrition Education Nutritionist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-09-12.