What is Duyen Belletto's NPI number?

Duyen Belletto's National Provider Identifier (NPI) is 1821283367, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Duyen Belletto's specialty?

Duyen Belletto is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).

Where is Duyen Belletto located?

Duyen Belletto's practice location on file with NPPES is 3000 Benton St, Santa Clara, CA 95051-3799.

What is Duyen Belletto's phone number?

The practice phone number listed in the NPPES registry for Duyen Belletto is (408) 423-2754.

Is Duyen Belletto's NPI active?

Yes — Duyen Belletto's NPI (1821283367) is active in the NPPES registry as of the last update on 2025-08-13.

IndividualActive

Duyen Belletto, M.A.

NPI 1821283367 · Marriage & Family Therapist · Santa Clara, CA

Duyen Belletto, M.A. is a Marriage & Family Therapist provider in Santa Clara, CA (NPI 1821283367).

Provider details

NPI number: 1821283367
Entity type: Individual
Primary specialty: Marriage & Family TherapistBehavioral Health & Social Service Providers
Credential: M.A.
Sex: Female
Sole proprietor: No

Specialties & taxonomies

Marriage & Family TherapistPrimary106H00000X
Behavioral Health & Social Service Providers

Profile Score

Detailed profile(82/100 index)

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

Registry tenure38% of score
18 yrs in NPPES 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

3000 Benton St

Santa Clara, CA 95051-3799

Phone: (408) 423-2754

Street-level locationGet directions

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Mailing address