CAROLYN MATTSON ARNP
NPI 1598349235
Nurse Practitioner - Family in Bellingham, WA
About Carolyn Mattson Arnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CAROLYN MATTSON ARNP (NPI 1598349235) is an individual family provider in Bellingham, Washington, licensed in Washington (AP61166688) and active in the NPI registry since May 2021. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Carolyn Mattson Arnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Carolyn Mattson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Bellingham, WA 98226
- Reassigned Medicare billing, Washington enrollment
- 35 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 3
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98226 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.
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 Carolyn Mattson's NPI number?
The NPI number for Carolyn Mattson is 1598349235. It was assigned to this individual provider in the NPPES registry on May 10, 2021.
Where is Carolyn Mattson located?
Carolyn Mattson practices at 2592 Kwina Rd, Bellingham, WA 98226. The listed phone number is (360) 384-0464.
What is Carolyn Mattson's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Carolyn Mattson enrolled in Medicare?
Yes. Carolyn Mattson is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Carolyn Mattson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Carolyn Mattson reassigns Medicare benefits to Lummi Indian Business Council (Bellingham, WA). The 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 Carolyn Mattson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Carolyn Mattson was last updated on May 10, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Carolyn Mattson, ARNP · NPI 1598349235
Family physician in Bellingham, Washington. Individual provider, active in the CMS NPPES registry since May 10, 2021.
## Identity
- **NPI:** 1598349235 (Entity type: Individual)
- **Enumerated:** May 10, 2021
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** AP61166688 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 2592 KWINA RD, Bellingham, WA 98226-9278
- **Phone:** (360) 384-0464
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Lummi Indian Business Council (NPI 1669592374, Bellingham, WA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 10, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1598349235) · Data from the CMS NPPES public registry.