Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Derek Owen Doss, L.AC.

Acupuncturist in Sebastopol, CA · enumerated 2009.

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

National Provider Identifier

1255666103

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Registry record

Entity type Individual (Type 1)

Name Mr. Derek Owen Doss

Credential L.AC.

Sex Male

Practice address 876 Hwy 116 S Ste 7, Sebastopol, CA, 95472

Phone (707) 823-2217

Enumeration date Oct 9, 2009

Last updated in NPPES Feb 18, 2026

Taxonomy & licenses

171100000X Acupuncturist Other Service Providers · License AC 13723 (CA) Primary

LAC · Licensed Acupuncturist: A practitioner licensed to perform acupuncture. About the LAC 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 1255666103 active?

Yes, as of the latest NPPES snapshot, NPI 1255666103 is active (record last updated 2026-02-18).

How do I verify Derek Doss's NPI record?

Cross-check NPI 1255666103 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-18.