Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Derek Thomas Wirth, DMD

Dentist in Oak Harbor, WA · enumerated 2013.

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

National Provider Identifier

1942640271

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Registry record

Entity type Individual (Type 1)

Name Dr. Derek Thomas Wirth

Credential DMD

Sex Male

Practice address 275 Se Cabot Dr Ste 201, Oak Harbor, WA, 98277

Phone (360) 675-6404

Enumeration date Jul 1, 2013

Last updated in NPPES Jul 1, 2013

Taxonomy & licenses

122300000X Dentist Dental Providers · License DE60372533 (WA) Primary

DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD 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 1942640271 active?

Yes, as of the latest NPPES snapshot, NPI 1942640271 is active (record last updated 2013-07-01).

How do I verify Derek Wirth's NPI record?

Cross-check NPI 1942640271 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 2013-07-01.