Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Christopher Gary Lum, MSW

Clinical Social Worker in Palo Alto, CA · enumerated 2010.

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

National Provider Identifier

1255654323

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Registry record

Entity type Individual (Type 1)

Name Christopher Gary Lum

Credential MSW

Sex Male

Practice address 3801 Miranda Ave, Social Work Pad 122, Palo Alto, CA, 94304

Phone (650) 493-5000

Enumeration date Mar 3, 2010

Last updated in NPPES Dec 30, 2021

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 29237 (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.

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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 Christopher Lum?

Christopher Lum 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 2021-12-30.