What is Duy Chau's NPI number?

Duy Chau's National Provider Identifier (NPI) is 1861363137, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Duy Chau's specialty?

Duy Chau is listed in the NPPES registry with a primary specialty of Behavior Analyst (Behavioral Health & Social Service Providers).

Where is Duy Chau located?

Duy Chau's practice location on file with NPPES is 3186 Airway Ave Ste a, Costa Mesa, CA 92626-4650.

What is Duy Chau's phone number?

The practice phone number listed in the NPPES registry for Duy Chau is (714) 881-0427.

Is Duy Chau's NPI active?

Yes — Duy Chau's NPI (1861363137) is active in the NPPES registry as of the last update on 2025-09-17.

IndividualActive

Duy Chau

NPI 1861363137 · Behavior Analyst · Costa Mesa, CA

Duy Chau is a Behavior Analyst provider in Costa Mesa, CA (NPI 1861363137).

Provider details

NPI number: 1861363137
Entity type: Individual
Primary specialty: Behavior AnalystBehavioral Health & Social Service Providers
Sex: Male
Sole proprietor: Yes

Specialties & taxonomies

Behavior AnalystPrimary103K00000X
Behavioral Health & Social Service Providers

Profile Score

Basic profile(47/100 index)

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

Registry tenure38% of score
Under 1 yr in registry
Profile completeness38% of score
83% 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

3186 Airway Ave Ste a

Costa Mesa, CA 92626-4650

Phone: (714) 881-0427

Fax: (714) 327-0673

Street-level locationGet directions

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Mailing address