What is Diana Siew's NPI number?

Diana Siew's National Provider Identifier (NPI) is 1649636820, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Diana Siew's specialty?

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

Where is Diana Siew located?

Diana Siew's practice location on file with NPPES is 1849 Sawtelle Blvd Ste 610, Los Angeles, CA 90025-7013.

What is Diana Siew's phone number?

The practice phone number listed in the NPPES registry for Diana Siew is (424) 442-0266.

Is Diana Siew's NPI active?

Yes — Diana Siew's NPI (1649636820) is active in the NPPES registry as of the last update on 2022-04-04.

IndividualActive

Diana Siew

NPI 1649636820 · Marriage & Family Therapist · Los Angeles, CA

Diana Siew is a Marriage & Family Therapist provider in Los Angeles, CA (NPI 1649636820).

Provider details

NPI number: 1649636820
Entity type: Individual
Primary specialty: Marriage & Family TherapistBehavioral Health & Social Service Providers
Sex: Female
Sole proprietor: Yes
License: 84146 (CA)

Specialties & taxonomies

Marriage & Family TherapistPrimary106H00000XLicense 84146 (CA)
Behavioral Health & Social Service Providers

Profile Score

Established profile(72/100 index)

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

Registry tenure38% of score
10 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

1849 Sawtelle Blvd Ste 610

Los Angeles, CA 90025-7013

Phone: (424) 442-0266

Street-level locationGet directions

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Mailing address