NORTH ISLAND MEDICAL
NPI 1881021905
Clinic/Center - Primary Care in Oak Harbor, WA
About North Island Medical NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NORTH ISLAND MEDICAL (NPI 1881021905) is a healthcare organization registered as a primary care in Oak Harbor, Washington and active in the NPI registry since October 2013. The organization holds a CLIA Waiver certificate valid through April 4, 2028 and lists Mark Richard Duncan, Partner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
North Island Medical is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
5Medicare enrollment records show 5 clinicians reassign Medicare billing to North Island Medical, which bills Medicare for the services they deliver. Of these, 3 practice at this address. They are listed nearest first.
Clinicians, nearest first (5)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate of Waiver 50D2073242
North Island Medical · Oak Harbor, WAFrequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Oak Harbor Primary Care PLLC's NPI number?
The NPI number for Oak Harbor Primary Care PLLC is 1881021905. It was assigned to this organization in the NPPES registry on October 3, 2013. The provider is doing business as North Island Medical.
Where is Oak Harbor Primary Care PLLC located?
Oak Harbor Primary Care PLLC is located at 135 South East Ely St., Oak Harbor, WA 98277. The listed phone number is (360) 682-5444.
What is Oak Harbor Primary Care PLLC's specialty?
The primary specialty registered for this NPI is Clinic/Center, specializing in Primary Care, with taxonomy code 261QP2300X.
Is Oak Harbor Primary Care PLLC enrolled in Medicare?
Yes. Oak Harbor Primary Care PLLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Oak Harbor Primary Care PLLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 5 clinicians in 3 Medicare specialties reassign their Medicare billing to Oak Harbor Primary Care PLLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Family Practice (3), Internal Medicine (1) and Nurse Practitioner (1). Of these, 3 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Oak Harbor Primary Care PLLC hold a CLIA laboratory certificate?
Yes. A Certificate of Waiver (number 50D2073242) is associated with this NPI, valid through April 4, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
What insurance does Oak Harbor Primary Care PLLC accept?
Health plans from Premera Blue Cross Blue Shield of Alaska list Oak Harbor Primary Care PLLC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Oak Harbor Primary Care PLLC was last updated on October 3, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# North Island Medical · NPI 1881021905
Primary Care organization in Oak Harbor, Washington. Organization record, active in the CMS NPPES registry since October 3, 2013.
## Identity
- **NPI:** 1881021905 (Entity type: Organization)
- **Enumerated:** October 3, 2013
- **Primary specialty:** Clinic/Center - Primary Care · taxonomy 261QP2300X
- **Legal business name:** Oak Harbor Primary Care Pllc
- **Organization subpart:** No
- **Authorized official:** Mark Duncan, PARTNER
## Practice location
- **Address:** 135 SOUTH EAST ELY ST., Oak Harbor, WA 98277-9031
- **Phone:** (360) 682-5444 · **Fax:** (360) 682-5639
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 5 clinicians in 3 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Family Practice (3), Internal Medicine (1), Nurse Practitioner (1); 3 practice at this address · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** October 3, 2013
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1881021905) · Data from the CMS NPPES public registry.