Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Marissa Marie Martinez, MS, RDN, LD

Registered Dietitian in San Antonio, TX · enumerated 2019.

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

National Provider Identifier

1619432432

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Registry record

Entity type Individual (Type 1)

Name Ms. Marissa Marie Martinez

Credential MS, RDN, LD

Sex Female

Practice address 646 S Flores St, San Antonio, TX, 78204

Phone (855) 481-1149

Enumeration date Feb 6, 2019

Last updated in NPPES Apr 20, 2022

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License 86050978 (TX) 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 is the NPI number for Marissa Martinez?

The National Provider Identifier (NPI) for Marissa Martinez is 1619432432, a Type 1 (individual) record in the CMS NPPES registry.

Where does Marissa Martinez practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-04-20.