What is Sophie Lau's NPI number?

Sophie Lau's National Provider Identifier (NPI) is 1871472217, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Sophie Lau's specialty?

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

Where is Sophie Lau located?

Sophie Lau's practice location on file with NPPES is 19400 Santa Maria Ave, Castro Valley, CA 94546-3400.

What is Sophie Lau's phone number?

The practice phone number listed in the NPPES registry for Sophie Lau is (510) 537-5910.

Is Sophie Lau's NPI active?

Yes — Sophie Lau's NPI (1871472217) is active in the NPPES registry as of the last update on 2025-08-29.

IndividualActive

Sophie Lau, ASW

NPI 1871472217 · School Social Worker · Castro Valley, CA

Sophie Lau, ASW is a School Social Worker provider in Castro Valley, CA (NPI 1871472217).

Provider details

NPI number: 1871472217
Entity type: Individual
Primary specialty: School Social WorkerBehavioral Health & Social Service Providers
Credential: ASW
Sex: Female
Sole proprietor: Yes
License: 78757 (CA)

Specialties & taxonomies

School Social WorkerPrimary1041S0200XLicense 78757 (CA)
Behavioral Health & Social Service Providers

Profile Score

Established profile(54/100 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
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

19400 Santa Maria Ave

Castro Valley, CA 94546-3400

Phone: (510) 537-5910

Street-level locationGet directions

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Mailing address