LONDRES RIESSEN USO MD
NPI 1649381500
Anesthesiology in Everett, WA
About Londres Riessen Uso Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LONDRES RIESSEN USO MD (NPI 1649381500) is an individual anesthesiology provider in Everett, Washington, licensed in Washington (MD60173871) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and is a graduate of Other (2006).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Accepted Insurance
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
Londres Riessen Uso 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
3Medicare enrollment records show Londres Uso reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Everett, WA 98201
- Reassigned Medicare billing, Washington enrollment
- 1,285 clinicians in this Medicare group
Everett, WA 98201
- Reassigned Medicare billing, Washington enrollment
- Medicare enrollment name: Providence Wa Anesthesia Services, PC
- 171 clinicians in this Medicare group
Seattle, WA 98122
- Reassigned Medicare billing, Washington enrollment
- 911 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
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.
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 Londres Uso's NPI number?
The NPI number for Londres Uso is 1649381500. It was assigned to this individual provider in the NPPES registry on August 31, 2006.
Where is Londres Uso located?
Londres Uso practices at 3927 Rucker Ave, Everett, WA 98201. The listed phone number is (425) 258-3900.
What is Londres Uso's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Londres Uso enrolled in Medicare?
Yes. Londres Uso 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 Londres Uso's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Londres Uso reassigns Medicare benefits to 3 organizations: Optum Care Washington PLLC (Everett, WA), Providence Wa Anesthesia Services, P.C. (Everett, WA) and The Polyclinic PLLC (Seattle, WA). 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 Londres Uso's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Londres Uso accept?
Health plans from Premera Blue Cross Blue Shield of Alaska list Londres Uso 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 Londres Uso was last updated on July 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.
# Londres Riessen Uso, MD · NPI 1649381500
Anesthesiology physician in Everett, Washington. Individual provider, active in the CMS NPPES registry since August 31, 2006.
## Identity
- **NPI:** 1649381500 (Entity type: Individual)
- **Enumerated:** August 31, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** MD60173871 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 3927 RUCKER AVE, Everett, WA 98201-4833
- **Phone:** (425) 258-3900
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Optum Care Washington PLLC (NPI 1831186766, Everett, WA); Providence Wa Anesthesia Services, P.C. (NPI 1669615894, Everett, WA); The Polyclinic PLLC (NPI 1174594634, Seattle, WA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2006
## Record status
- **NPPES last updated:** July 22, 2026
- **Other identifiers:** Medicaid 2009366 (WA)
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Source: [NPI Profile](https://npiprofile.com/npi/1649381500) · Data from the CMS NPPES public registry.