What is Sofia Zwass's NPI number?

Sofia Zwass's National Provider Identifier (NPI) is 1184413536, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Sofia Zwass's specialty?

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

Where is Sofia Zwass located?

Sofia Zwass's practice location on file with NPPES is 9 Ralston Ranch Rd, Belmont, CA 94002-1234.

What is Sofia Zwass's phone number?

The practice phone number listed in the NPPES registry for Sofia Zwass is (650) 576-6458.

Is Sofia Zwass's NPI active?

Yes — Sofia Zwass's NPI (1184413536) is active in the NPPES registry as of the last update on 2025-05-02.

IndividualActive

Sofia Zwass, MSW

NPI 1184413536 · Social Worker · Belmont, CA

Sofia Zwass, MSW is a Social Worker provider in Belmont, CA (NPI 1184413536).

Provider details

NPI number: 1184413536
Entity type: Individual
Primary specialty: Social WorkerBehavioral Health & Social Service Providers
Credential: MSW
Sex: Female
Sole proprietor: No

Specialties & taxonomies

Social WorkerPrimary104100000X
Behavioral Health & Social Service Providers

Profile Score

Basic profile(48/100 index)

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

Registry tenure38% of score
1 yr 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

9 Ralston Ranch Rd

Belmont, CA 94002-1234

Phone: (650) 576-6458

Street-level locationGet directions

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Mailing address