JOHN ROBERT MATHESON MD
NPI 1669413258
Emergency Medicine in Richland, WA
About John Robert Matheson Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN ROBERT MATHESON MD (NPI 1669413258) is an individual emergency medicine provider in Richland, Washington, licensed in Washington (MD00041012) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 9
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
John Robert Matheson Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show John Matheson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Arlington, WA 98223
- Reassigned Medicare billing, Washington enrollment
- 519 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 4
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 99352 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.
RICHLAND, WA 99352
RICHLAND, WA 99352
RICHLAND, WA 99352
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 John Matheson's NPI number?
The NPI number for John Matheson is 1669413258. It was assigned to this individual provider in the NPPES registry on June 8, 2006.
Where is John Matheson located?
John Matheson practices at 888 Swift Blvd, Richland, WA 99352. The listed phone number is (509) 946-4611.
What is John Matheson's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is John Matheson enrolled in Medicare?
Yes. John Matheson is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for John Matheson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Matheson reassigns Medicare benefits to Northwest Emergency Physicians LLC (Arlington, 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 John Matheson'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 John Matheson was last updated on March 10, 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.
# John Robert Matheson, MD · NPI 1669413258
Emergency Medicine physician in Richland, Washington. Individual provider, active in the CMS NPPES registry since June 8, 2006.
## Identity
- **NPI:** 1669413258 (Entity type: Individual)
- **Enumerated:** June 8, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** MD00041012 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 888 SWIFT BLVD, Richland, WA 99352-3514
- **Phone:** (509) 946-4611 · **Fax:** (509) 942-2757
## 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:** Northwest Emergency Physicians LLC (NPI 1235172370, Arlington, WA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 10, 2008
- **Other identifiers:** Medicare PIN P00370087 (WA); Other 0204800 (WA); Other 4243MA (WA); and 6 more
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Source: [NPI Profile](https://npiprofile.com/npi/1669413258) · Data from the CMS NPPES public registry.