NPI Portal NPI Lookup & Verification

Maria Esther Guzman

Maria Esther Guzman is a School Counselor provider (Counselor) practicing in Tracy, CA, registered in the NPPES registry with NPI 1831614437 since 2017. Practices at Jefferson School District (listed at the same practice address in NPPES).

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NPI 1831614437
Entity type Individual (Type 1)
Name Maria Esther Guzman
Sex Female
Practice address 1219 WHISPERING WIND DR, Tracy, CA, 95377
Phone 2098363388
Enumeration date 2017-08-04
Last updated in NPPES 2026-04-10

Taxonomy & licenses

Taxonomy code Specialty Primary License State
101YS0200X School Counselor Primary
Copy-ready billing details
Provider: Maria Guzman
NPI: 1831614437
Taxonomy: 101YS0200X (School Counselor)
Address: 1219 WHISPERING WIND DR, Tracy, CA, 95377

Other providers at this practice address

NPI Name Type Specialty Location
1457497331 Jefferson School District Organization Local Education Agency (LEA) Tracy, CA
1922970631 Araceli Contreras Individual School Counselor Tracy, CA

Verify this record

Cross-check NPI 1831614437 against the authoritative CMS record: view Maria Esther Guzman on the official NPPES registry .

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 or validate an NPI number.

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 Maria Guzman?
Maria Guzman is registered in NPPES with the primary taxonomy of School Counselor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2026-04-10.