Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Nikolai Olegovitch Guimaoutdinov, PSYD

Clinical Psychologist in Portland, OR · enumerated 2018 · practices at Larsen Sanchez Psychology, LLC.

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

National Provider Identifier

1639668502

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Registry record

Entity type Individual (Type 1)

Name Nikolai Olegovitch Guimaoutdinov

Credential PSYD

Sex Female

Practice address 905 Se 14th Ave, Portland, OR, 97214

Phone (503) 622-8964

Enumeration date May 7, 2018

Last updated in NPPES Mar 26, 2026

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers Secondary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 3724 (OR) Primary

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

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.

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Frequently asked questions

How do I verify Nikolai Guimaoutdinov's NPI record?

Cross-check NPI 1639668502 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1639668502 active?

Yes, as of the latest NPPES snapshot, NPI 1639668502 is active (record last updated 2026-03-26).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-26.