Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

ALEXA ELIZABETH EGUCHI DIAZ LMFT
NPI 1598425134
Marriage & Family Therapist in Costa Mesa, CA

Q: What is Alexa Eguchi Diaz's NPI number?

The NPI number for Alexa Eguchi Diaz is 1598425134. It was assigned to this individual provider in the NPPES registry on December 22, 2021.

Q: What is Alexa Eguchi Diaz's specialty?

The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.

Q: When was this NPI record last updated?

The NPPES record for Alexa Eguchi Diaz was last updated on September 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since December 22, 2021

170 E 17TH ST STE 205, COSTA MESA, CA 92627(949) 414-8557 Get Directions Write a Review

NPPES record last updated: September 21, 2026. Verified against the NPPES registry weekly; last sync: September 27, 2026.

Record update history: Sep 21, 2026, Jan 29, 2026, Jan 22, 2026 and 1 more (4 updates tracked since 2021).

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About Alexa Elizabeth Eguchi Diaz Lmft NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ALEXA ELIZABETH EGUCHI DIAZ LMFT (NPI 1598425134) is an individual marriage & family therapist in Costa Mesa, California, licensed in California (158253) and active in the NPI registry since December 2021.

NPPES Registry Identity

NPI1598425134

Entity TypeIndividualFemale

Primary Taxonomy106H00000X

Provider Legal NameALEXA ELIZABETH EGUCHI DIAZCredential: LMFT

Location Address170 E 17TH ST STE 205Costa Mesa, CA 92627-3701

Mailing Address170 E 17th St Ste 205Costa Mesa, CA 92627-3701 · (949) 414-8557

Phone(949) 414-8557

Sole ProprietorYes

Enumeration DateDecember 22, 2021

Last NPPES UpdateSeptember 21, 20264 updates tracked since enumeration

NPPES CertifiedSeptember 21, 2026

✔ NPI 1598425134 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyMarriage & Family TherapistBehavioral Health & Social Service Providers

Taxonomy Code106H00000X

License✔ Licensed in CA · 158253

Definition

A marriage and family therapist is a person with a master's degree in marriage and family therapy, or a master's or doctoral degree in a related mental health field with substantially equivalent coursework in marriage and family therapy, who receives supervised clinical experience, or a person who meets the state requirements to practice as a marriage and family therapist. A marriage and family therapist treats mental and emotional disorders within the context of marriage and family systems. A marriage and family therapist provides mental health and counseling services to individuals, couples, families, and groups.

170 E 17TH ST STE 205, Costa Mesa, CA 92627

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Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

AOIFE Q TESSMANN

Counselor

170 E 17TH ST STE 205
COSTA MESA, CA 92627

Orange County (617) 448-3330

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Alexa Eguchi Diaz's NPI number?

The NPI number for Alexa Eguchi Diaz is 1598425134. It was assigned to this individual provider in the NPPES registry on December 22, 2021.

Where is Alexa Eguchi Diaz located?

Alexa Eguchi Diaz practices at 170 E 17th St Ste 205, Costa Mesa, CA 92627. The listed phone number is (949) 414-8557.

What is Alexa Eguchi Diaz's specialty?

The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.

When was this NPI record last updated?

The NPPES record for Alexa Eguchi Diaz was last updated on September 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.