Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Marlena Larson, PSY.D.

Clinical Psychologist in Racine, WI · enumerated 2005.

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

National Provider Identifier

1538154679

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Registry record

Entity type Individual (Type 1)

Name Dr. Marlena Larson

Credential PSY.D.

Sex Female

Practice address 1320 Wisconsin Ave, Racine, WI, 53403

Phone (262) 687-2436

Fax (262) 687-2495

Enumeration date Sep 14, 2005

Last updated in NPPES Nov 25, 2008

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 2512-057 (WI) Primary

PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD credential

Other identifiers

Identifier	Type	State	Issuer
40959700	Medicaid	WI	-

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

Is NPI 1538154679 active?

Yes, as of the latest NPPES snapshot, NPI 1538154679 is active (record last updated 2008-11-25).

How do I verify Marlena Larson's NPI record?

Cross-check NPI 1538154679 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-11-25.