Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Celeste Desiree Montalvo, FNP

Family Nurse Practitioner in Petaluma, CA · enumerated 2025.

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

National Provider Identifier

1669363230

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Registry record

Entity type Individual (Type 1)

Name Celeste Desiree Montalvo

Credential FNP

Sex Female

Practice address 1455 N Mcdowell Blvd, Petaluma, CA, 94954

Phone (707) 559-7500

Fax (707) 238-1426

Enumeration date Jul 11, 2025

Last updated in NPPES Oct 13, 2025

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95035878 (CA) Primary

FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan. About the FNP credential

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 Celeste Montalvo?

Celeste Montalvo is registered in NPPES with the primary taxonomy of Family Nurse Practitioner. 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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-10-13.