Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Oak Harbor Primary Care Pllc

Primary Care Clinic/Center in Oak Harbor, WA · enumerated 2013 · authorized official Mark Duncan, Partner.

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

National Provider Identifier

1881021905

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Oak Harbor Primary Care Pllc

Other name <Unavail>

Practice address 135 South East Ely St., Oak Harbor, WA, 98277

Phone (360) 682-5444

Fax (360) 682-5639

Enumeration date Oct 3, 2013

Last updated in NPPES Oct 3, 2013

Taxonomy & classification

261QP2300X Primary Care Clinic/Center Ambulatory Health Care Facilities · License 201232264714 (WA) Primary

Authorized official

Name Mark Duncan

Title Partner

Phone (360) 929-4936

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2013-10-03. Verify at npiregistry.cms.hhs.gov.

Where is Oak Harbor Primary Care Pllc located?

The practice location on file with NPPES is in Oak Harbor, WA.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-10-03.