Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Christopher Robert Duff, BCBA

Behavior Analyst in Oakland, CA · enumerated 2018.

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

National Provider Identifier

1346758364

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Registry record

Entity type Individual (Type 1)

Name Christopher Robert Duff

Credential BCBA

Sex Male

Practice address 400 29th St Ste 204, Oakland, CA, 94609

Phone (510) 703-8951

Enumeration date Jan 11, 2018

Last updated in NPPES Jan 11, 2018

Taxonomy & licenses

103K00000X Behavior Analyst Behavioral Health & Social Service Providers · License 1-17-28469 (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

How do I verify Christopher Duff's NPI record?

Cross-check NPI 1346758364 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1346758364 active?

Yes, as of the latest NPPES snapshot, NPI 1346758364 is active (record last updated 2018-01-11).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-01-11.