Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Julien J Guillaumot, PHD

Psychologist in Corvallis, OR · enumerated 2006 · practices at Corvallis Neuropsychology LLC.

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

National Provider Identifier

1124079066

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Registry record

Entity type Individual (Type 1)

Name Julien J Guillaumot

Credential PHD

Sex Male

Practice address 408 Sw Monroe Ave Ste M210d, Corvallis, OR, 97333

Phone (541) 257-5533

Enumeration date May 15, 2006

Last updated in NPPES Mar 13, 2020

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License 1683 (OR) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier	Type	State	Issuer
278211	Medicaid	OR	-

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 Julien Guillaumot?

The National Provider Identifier (NPI) for Julien Guillaumot is 1124079066, a Type 1 (individual) record in the CMS NPPES registry.

Where does Julien Guillaumot practice?

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

Other providers at this practice address

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Mary Sichi Counseling Psychologist · Corvallis, OR NPI 1104298579 Corvallis Neuropsychology LLC Psychologist · Corvallis, OR NPI 1174028294

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-03-13.