What is Efrain Marquez's NPI number?

Efrain Marquez's National Provider Identifier (NPI) is 1083989636, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Efrain Marquez's specialty?

Efrain Marquez is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).

Where is Efrain Marquez located?

Efrain Marquez's practice location on file with NPPES is 15519 Crenshaw Blvd, Gardena, CA 90249-4525.

What is Efrain Marquez's phone number?

The practice phone number listed in the NPPES registry for Efrain Marquez is (310) 679-9126.

Is Efrain Marquez's NPI active?

Yes — Efrain Marquez's NPI (1083989636) is active in the NPPES registry as of the last update on 2025-05-27.

IndividualActive

Efrain Marquez

NPI 1083989636 · Clinical Social Worker · Gardena, CA

Efrain Marquez is a Clinical Social Worker provider in Gardena, CA (NPI 1083989636).

Provider details

NPI number: 1083989636
Entity type: Individual
Primary specialty: Clinical Social WorkerBehavioral Health & Social Service Providers
Sex: Male
Sole proprietor: No
License: 85607 (CA)

Specialties & taxonomies

Clinical Social WorkerPrimary1041C0700XLicense 85607 (CA)
Behavioral Health & Social Service Providers

Profile Score

Detailed profile(80/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
14 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

15519 Crenshaw Blvd

Gardena, CA 90249-4525

Phone: (310) 679-9126

Street-level locationGet directions

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Mailing address