NADINE EL-AYACHE DO
NPI 1053962118
Internal Medicine - Rheumatology in Seattle, WA
About Nadine El-ayache Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
NADINE EL-AYACHE DO (NPI 1053962118) is an individual rheumatology provider in Seattle, Washington, licensed in Washington (OP61415493) and active in the NPI registry since September 2019. She is enrolled in Medicare PECOS, is affiliated with University Of Washington Medical Ctr, and is a graduate of Other (2019).
NPPES Registry Identity
Specialties & Licenses 2
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
Nadine El-ayache Do 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
2Medicare enrollment records show Nadine El-ayache reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Seattle, WA 98104
- Reassigned Medicare billing, Washington enrollment
- 4,364 clinicians in this Medicare group
Lansing, MI 48912
- Reassigned Medicare billing, Michigan enrollment
- 115 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
University Of Washington Medical Ctr
Acute Care Hospitals · Seattle, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98195 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.
SEATTLE, WA 98195
SEATTLE, WA 98195
SEATTLE, WA 98195
SEATTLE, WA 98195
SEATTLE, WA 98195
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 Nadine El-ayache's NPI number?
The NPI number for Nadine El-ayache is 1053962118. It was assigned to this individual provider in the NPPES registry on September 20, 2019.
Where is Nadine El-ayache located?
Nadine El-ayache practices at 1959 NE Pacific St, Seattle, WA 98195. The listed phone number is (206) 520-5000.
What is Nadine El-ayache's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.
Is Nadine El-ayache enrolled in Medicare?
Yes. Nadine El-ayache 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 Nadine El-ayache's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nadine El-ayache reassigns Medicare benefits to 2 organizations: The Association Of University Physicians (Seattle, WA) and Vituity - Michigan Hospitalists PC (Lansing, MI). 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 Nadine El-ayache's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Nadine El-ayache accept?
Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Nadine El-ayache 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.
Is Nadine El-ayache affiliated with any hospitals?
According to CMS data, Nadine El-ayache is affiliated with University Of Washington Medical Ctr.
When was this NPI record last updated?
The NPPES record for Nadine El-ayache was last updated on June 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Nadine El-Ayache, DO · NPI 1053962118
Rheumatology physician in Seattle, Washington. Individual provider, active in the CMS NPPES registry since September 20, 2019.
## Identity
- **NPI:** 1053962118 (Entity type: Individual)
- **Enumerated:** September 20, 2019
- **Primary specialty:** Internal Medicine - Rheumatology · taxonomy 207RR0500X
- **State license:** OP61415493 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 1959 NE PACIFIC ST, Seattle, WA 98195-0001
- **Phone:** (206) 520-5000
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): The Association Of University Physicians (NPI 1023041159, Seattle, WA); Vituity - Michigan Hospitalists PC (NPI 1487278156, Lansing, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2019
## Record status
- **NPPES last updated:** June 4, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1053962118) · Data from the CMS NPPES public registry.