Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Iris Yolanda Lopez Luthi, PSY.D.

Clinical Psychologist in South Pasadena, CA · enumerated 2016.

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

National Provider Identifier

1639531312

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Registry record

Entity type Individual (Type 1)

Name Dr. Iris Yolanda Lopez Luthi

Credential PSY.D.

Sex Female

Practice address 625 Fair Oaks Ave Ste 390, South Pasadena, CA, 91030

Phone (626) 449-2484

Enumeration date Mar 22, 2016

Last updated in NPPES Mar 22, 2016

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 28142 (CA) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Iris Lopez Luthi?

The National Provider Identifier (NPI) for Iris Lopez Luthi is 1639531312, a Type 1 (individual) record in the CMS NPPES registry.

Where does Iris Lopez Luthi practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-03-22.