DR. NILS WARD NAVIAUX MD
NPI 1821107178
Emergency Medicine in Bellingham, WA
About Dr. Nils Ward Naviaux Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. NILS WARD NAVIAUX MD (NPI 1821107178) is an individual emergency medicine provider in Bellingham, Washington, licensed in Washington (MD00047160) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with St Joseph Hospital, and is a graduate of University Of Washington School Of Medicine (2000).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 16
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Nils Ward Naviaux Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
7Medicare enrollment records show Nils Naviaux reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Sedro Woolley, WA 98284
- Reassigned Medicare billing, Washington enrollment
- 139 clinicians in this Medicare group
Mount Vernon, WA 98274
- Reassigned Medicare billing, Washington enrollment
- Also billed through NPI 1144348228 (Washington)
- 142 clinicians in this Medicare group
Friday Harbor, WA 98250
- Reassigned Medicare billing, Washington enrollment
- 106 clinicians in this Medicare group
Coupeville, WA 98239
- Reassigned Medicare billing, Washington enrollment
- 915 clinicians in this Medicare group
Arlington, WA 98223
- Reassigned Medicare billing, Washington enrollment
- 519 clinicians in this Medicare group
Seattle, WA 98133
- Reassigned Medicare billing, Washington enrollment
- 274 clinicians in this Medicare group
Spokane, WA 99204
- Reassigned Medicare billing, Washington enrollment
- 86 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St Joseph Hospital
Acute Care Hospitals · Bellingham, WAPeacehealth United General Medical Center
Critical Access Hospitals · Sedro Woolley, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98225 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BELLINGHAM, WA 98225
BELLINGHAM, WA 98225
Frequently 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 Nils Naviaux's NPI number?
The NPI number for Nils Naviaux is 1821107178. It was assigned to this individual provider in the NPPES registry on August 30, 2006.
Where is Nils Naviaux located?
Nils Naviaux practices at 2901 Squalicum Pkwy, Bellingham, WA 98225. The listed phone number is (360) 738-6788.
What is Nils Naviaux's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Nils Naviaux enrolled in Medicare?
Yes. Nils Naviaux is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Nils Naviaux's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nils Naviaux reassigns Medicare benefits to 7 organizations: Sound Physicians Emergency Medicine Of Washington PLLC (Sedro Woolley, WA), Whidbey Island Public Hospital District (Mount Vernon, WA), Cep America LLC (Friday Harbor, WA), South Sound Inpatient Physicians, PLLC (Coupeville, WA), Northwest Emergency Physicians LLC (Arlington, WA) and 2 more organizations, listed in the Medicare section above. Each 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 Nils Naviaux's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Nils Naviaux affiliated with any hospitals?
According to CMS data, Nils Naviaux is affiliated with St Joseph Hospital and Peacehealth United General Medical Center.
When was this NPI record last updated?
The NPPES record for Nils Naviaux was last updated on March 11, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Dr. Nils Ward Naviaux, MD · NPI 1821107178
Emergency Medicine physician in Bellingham, Washington. Individual provider, active in the CMS NPPES registry since August 30, 2006.
## Identity
- **NPI:** 1821107178 (Entity type: Individual)
- **Enumerated:** August 30, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** MD00047160 (Washington)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 2901 SQUALICUM PKWY, Bellingham, WA 98225-1851
- **Phone:** (360) 738-6788 · **Fax:** (360) 738-6724
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 7 organizations under Medicare reassignment (form CMS-855R): Sound Physicians Emergency Medicine Of Washington PLLC (NPI 1629532064, Sedro Woolley, WA); Whidbey Island Public Hospital District (NPI 1013538230, Mount Vernon, WA); Cep America LLC (NPI 1962200790, Friday Harbor, WA); South Sound Inpatient Physicians, PLLC (NPI 1982035754, Coupeville, WA); Northwest Emergency Physicians LLC (NPI 1235172370, Arlington, WA); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Washington School Of Medicine, class of 2000
## Record status
- **NPPES last updated:** March 11, 2008
- **Other identifiers:** Other 0218176 (WA); Other 1314NA (WA); Other 8291NA (WA); and 13 more
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Source: [NPI Profile](https://npiprofile.com/npi/1821107178) · Data from the CMS NPPES public registry.