Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Christopher Malcolm Williams

Home Health Aide in Los Angeles, CA · enumerated 2023 · practices at Affinity Behavioral Health Service.

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

National Provider Identifier

1154018802

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Registry record

Entity type Individual (Type 1)

Name Christopher Malcolm Williams

Sex Male

Practice address Los Angeles, CA, 90043

Phone (305) 209-9150

Enumeration date Apr 21, 2023

Last updated in NPPES Apr 21, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

374U00000X Home Health Aide Nursing Service Related Providers 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

How do I verify Christopher Williams's NPI record?

Cross-check NPI 1154018802 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1154018802 active?

Yes, as of the latest NPPES snapshot, NPI 1154018802 is active (record last updated 2023-04-21).

Other providers at this practice address

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Affinity Behavioral Health Service Case Management Agency · Los Angeles, CA NPI 1942693619

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-04-21.