Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Rosemary Mayer Hintz, MFT

Marriage & Family Therapist in Portola Valley, CA · enumerated 2006.

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

National Provider Identifier

1689745630

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Registry record

Entity type Individual (Type 1)

Name Mrs. Rosemary Mayer Hintz

Credential MFT

Sex Female

Practice address 363 La Cuesta Dr, Portola Valley, CA, 94028

Phone (650) 270-1606

Enumeration date Nov 13, 2006

Last updated in NPPES Jun 12, 2012

Taxonomy & licenses

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License 48332 (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 Rosemary Hintz?

The National Provider Identifier (NPI) for Rosemary Hintz is 1689745630, a Type 1 (individual) record in the CMS NPPES registry.

Where does Rosemary Hintz practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-06-12.