Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Sarah Arnall, LMSW

Clinical Social Worker in Berkeley, CA · enumerated 2016.

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

National Provider Identifier

1518318575

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Registry record

Entity type Individual (Type 1)

Name Sarah Arnall

Credential LMSW

Sex Female

Practice address 2105 Martin Luther King Jr Way Fl 1, Berkeley, CA, 94704

Phone (510) 900-9964

Enumeration date Jun 30, 2016

Last updated in NPPES Oct 16, 2024

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 6801099036 (MI) Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 6801103744 (MI) Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 117529 (CA) Primary

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 this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Sarah Arnall?

Sarah Arnall is registered in NPPES with the primary taxonomy of Clinical Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-10-16.