LESLIE C DE MARCOS
NPI 1790440923
Marriage & Family Therapist in Long Beach, CA

Q: What is Leslie De Marcos's NPI number?

The NPI number for Leslie De Marcos is 1790440923. It was assigned to this individual provider in the NPPES registry on November 2, 2021.

Q: What is Leslie De Marcos'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 Leslie De Marcos was last updated on May 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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 November 02, 2021

3210 LONG BEACH BLVD, LONG BEACH, CA 90807(562) 548-6500 Get Directions Write a Review

NPPES record last updated: May 5, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: May 5, 2026, Nov 2, 2021 (2 updates tracked since 2021).

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About Leslie C De Marcos NPPES

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

LESLIE C DE MARCOS (NPI 1790440923) is an individual marriage & family therapist in Long Beach, California, licensed in California (AMFT159209) and active in the NPI registry since November 2021.

NPPES Registry Identity

NPI1790440923

Entity TypeIndividualFemale

Primary Taxonomy106H00000X

Provider Legal NameLESLIE C DE MARCOS

Location Address3210 LONG BEACH BLVDLong Beach, CA 90807-5062

Mailing Address3210 Long Beach BlvdLong Beach, CA 90807-5062 · (562) 548-6500

Phone(562) 548-6500

Sole ProprietorNo

Enumeration DateNovember 2, 2021

Last NPPES UpdateMay 5, 20262 updates tracked since enumeration

NPPES CertifiedMay 5, 2026

✔ NPI 1790440923 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyMarriage & Family TherapistBehavioral Health & Social Service Providers

Taxonomy Code106H00000X

License✔ Licensed in CA · AMFT159209

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.

Also ListedBehavior TechnicianTaxonomy 106S00000X

3210 LONG BEACH BLVD, Long Beach, CA 90807

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Other Providers at the Same Location NPPES 20

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

MRS. SERWA A BERNAL RN

Registered Nurse