Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marianne Schaeffer, PPS

Counselor in Los Alamitos, CA · enumerated 2025.

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

National Provider Identifier

1821962747

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Registry record

Entity type Individual (Type 1)

Name Marianne Schaeffer

Credential PPS

Sex Female

Practice address 3591 Cerritos Ave, Los Alamitos, CA, 90720

Phone (562) 799-4780

Fax (562) 799-4825

Enumeration date Oct 2, 2025

Last updated in NPPES Oct 2, 2025

Taxonomy & licenses

101Y00000X Counselor Behavioral Health & Social Service Providers · License 210242552 (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

Where does Marianne Schaeffer practice?

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

What is the NPI number for Marianne Schaeffer?

The National Provider Identifier (NPI) for Marianne Schaeffer is 1821962747, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-10-02.