Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary Sample-Mattos

Marriage & Family Therapist in South San Francisco, CA · enumerated 2024 · practices at Youth Service Bureau of the Ymca.

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

National Provider Identifier

1073342960

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Registry record

Entity type Individual (Type 1)

Name Mary Sample-Mattos

Sex Female

Practice address 1486 Huntington Ave Ste 100, South San Francisco, CA, 94080

Phone (415) 368-5071

Enumeration date Jul 29, 2024

Last updated in NPPES Dec 9, 2025

Taxonomy & licenses

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License 159233 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Mary Sample-Mattos?

The National Provider Identifier (NPI) for Mary Sample-Mattos is 1073342960, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mary Sample-Mattos practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-09.