Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Julia Susana Siu Baas, L.C.S.W.

Clinical Social Worker in Davis, CA · enumerated 2010.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1669796181

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Registry record

Entity type Individual (Type 1)

Name Mrs. Julia Susana Siu Baas

Credential L.C.S.W.

Sex Female

Practice address 2051 John Jones Rd, Davis, CA, 95616

Phone (530) 758-2060

Fax (530) 758-8490

Enumeration date Mar 26, 2010

Last updated in NPPES Dec 17, 2010

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 26172 (CA) Primary

LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1669796181 active?

Yes, as of the latest NPPES snapshot, NPI 1669796181 is active (record last updated 2010-12-17).

How do I verify Julia Baas's NPI record?

Cross-check NPI 1669796181 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Ole Health Federally Qualified Health Center (FQHC) · Davis, CA NPI 1558366823 Wetona Eidson-Ton Family Medicine Physician · Davis, CA NPI 1609851674 Marci Snodgrass Family Medicine Physician · Davis, CA NPI 1164407839 Melissa Marshall Family Medicine Physician · Davis, CA NPI 1477526291 Farideh Ghoddusi-Tabarsi Dentist · Davis, CA NPI 1093759987 Sharon Sevilla-Bodine Pediatrics Physician · Davis, CA NPI 1366479859 Jennifer Shaw-Battista Advanced Practice Midwife · Davis, CA NPI 1770503666 Vicki Soloniuk Pediatric Adolescent Medicine Physician · Davis, CA NPI 1760492987

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-12-17.