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

Mr. Jacob James Volponi, RDN, CD

Student in an Organized Health Care Education/Training Program in Roseville, CA · enumerated 2021.

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

National Provider Identifier

1285390021

Verified

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Registry record

Entity type Individual (Type 1)

Name Mr. Jacob James Volponi

Credential RDN, CD

Sex Male

Practice address Roseville, CA, 95661

Phone (916) 918-6179

Enumeration date Nov 16, 2021

Last updated in NPPES Jul 10, 2026

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

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Primary

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

Where does Jacob Volponi practice?

The practice location on file with NPPES is in Roseville, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Jacob Volponi?

The National Provider Identifier (NPI) for Jacob Volponi is 1285390021, a Type 1 (individual) record in the CMS NPPES registry.

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