Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gianna Marie Ambrosio

Professional Counselor in Santa Rosa, CA · enumerated 2024.

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

National Provider Identifier

1073367884

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Registry record

Entity type Individual (Type 1)

Name Gianna Marie Ambrosio

Sex Female

Practice address 3434 Mendocino Ave # A, Santa Rosa, CA, 95403

Phone (707) 284-1978

Enumeration date Apr 16, 2024

Last updated in NPPES Apr 16, 2024

Taxonomy & licenses

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License APCC16221 (CA) 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.

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Frequently asked questions

What specialty is Gianna Ambrosio?

Gianna Ambrosio is registered in NPPES with the primary taxonomy of Professional Counselor. 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 2024-04-16.