Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Maria Santillan

Nutritionist in Hollister, CA · enumerated 2015.

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

National Provider Identifier

1104296722

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Registry record

Entity type Individual (Type 1)

Name Maria Santillan

Sex Female

Practice address 351 Felice Dr, Hollister, CA, 95023

Phone (831) 637-6871

Enumeration date Sep 25, 2015

Last updated in NPPES Sep 25, 2015

Taxonomy & licenses

133N00000X Nutritionist Dietary & Nutritional Service Providers 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

What specialty is Maria Santillan?

Maria Santillan is registered in NPPES with the primary taxonomy of Nutritionist. 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 2015-09-25.