Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Shelby Diane Tuthill, M.S.

Psychologist in Lake Oswego, OR · enumerated 2022.

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

National Provider Identifier

1790418655

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Registry record

Entity type Individual (Type 1)

Name Shelby Diane Tuthill

Credential M.S.

Sex Female

Practice address 4800 Meadows Rd Ste 300, Lake Oswego, OR, 97035

Phone (503) 776-0017

Enumeration date Jul 7, 2022

Last updated in NPPES Sep 5, 2025

Taxonomy & licenses

103TB0200X Cognitive & Behavioral Psychologist Behavioral Health & Social Service Providers · License 3947 (OR) Secondary

103TC1900X Counseling Psychologist Behavioral Health & Social Service Providers · License 3947 (OR) Secondary

103T00000X Psychologist Behavioral Health & Social Service Providers · License 3947 (OR) 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

Is NPI 1790418655 active?

Yes, as of the latest NPPES snapshot, NPI 1790418655 is active (record last updated 2025-09-05).

How do I verify Shelby Tuthill's NPI record?

Cross-check NPI 1790418655 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 2025-09-05.