What is Dien Nguyen's NPI number?

Dien Nguyen's National Provider Identifier (NPI) is 1427704204, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Dien Nguyen's specialty?

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

Where is Dien Nguyen located?

Dien Nguyen's practice location on file with NPPES is 301 Victoria St, Costa Mesa, CA 92627-1995.

What is Dien Nguyen's phone number?

The practice phone number listed in the NPPES registry for Dien Nguyen is (949) 642-2734.

Is Dien Nguyen's NPI active?

Yes — Dien Nguyen's NPI (1427704204) is active in the NPPES registry as of the last update on 2025-07-23.

IndividualActive

Dien Nguyen, NONE

NPI 1427704204 · Social Worker · Costa Mesa, CA

Dien Nguyen, NONE is a Social Worker provider in Costa Mesa, CA (NPI 1427704204).

Provider details

NPI number: 1427704204
Entity type: Individual
Primary specialty: Social WorkerBehavioral Health & Social Service Providers
Credential: NONE
Sex: Male
Sole proprietor: No
License: ASW125810 (CA)

Specialties & taxonomies

Social WorkerPrimary104100000XLicense ASW125810 (CA)
Behavioral Health & Social Service Providers

Profile Score

Established profile(61/100 index)

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

Registry tenure38% of score
4 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

301 Victoria St

Costa Mesa, CA 92627-1995

Phone: (949) 642-2734

Street-level locationGet directions

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Mailing address