NADINE EL-AYACHE DO
NPI 1053962118
Internal Medicine - Rheumatology in Seattle, WA

Q: 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.

Q: What is Nadine El-ayache's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Q: 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 14 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.

Active since September 20, 2019PECOS EnrolledAccepts Medicare Assignment

1959 NE PACIFIC ST, SEATTLE, WA 98195(206) 520-5000 Get Directions Write a Review

NPPES record last updated: June 4, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jun 4, 2025, Mar 1, 2023, Sep 20, 2019 (3 updates tracked since 2019).

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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

NPI1053962118

Entity TypeIndividualFemale

Primary Taxonomy207RR0500X

Provider Legal NameNADINE EL-AYACHECredential: DO

Location Address1959 NE PACIFIC STSeattle, WA 98195-0001

Mailing AddressPo Box 50095Seattle, WA 98145-5095

Phone(206) 520-5000

Sole ProprietorNo

Medical School CMSOtherGraduated 2019

Enumeration DateSeptember 20, 2019

Last NPPES UpdateJune 4, 20253 updates tracked since enumeration

NPPES CertifiedJune 4, 2025

✔ NPI 1053962118 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians

Taxonomy Code207RR0500X

License✔ Licensed in WA · OP61415493

Definition

An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.

Also ListedInternal MedicineTaxonomy 207R00000X · License OP61415493 (WA)

1959 NE PACIFIC ST, Seattle, WA 98195

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Premera Blue Cross Blue Shield of Alaska, Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

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.

PECOS PAC ID8022481951

PECOS Enrollment IDI20250617000546

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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, WA

3/5 CMS rating

OwnershipGovernment - State

CMS Certification Number500008

Location1959 NE Pacific St Box 356151Seattle, WA 98195 · King County

Emergency services Birthing friendly

Physician 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.

New Patient

$143.76 typical visit price

range $63.67 – $189.37

Typical copayment $35.94 (range $15.91 – $47.34)

Most-billed visit code 99204

Established Patient

$111.00 typical visit price

range $21.12 – $155.00

Typical copayment $27.75 (range $5.28 – $38.75)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

LEONIE A NEVILLE PHARMD

Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)

1959 NE PACIFIC ST
SEATTLE, WA 98195

King County (206) 598-4874

ALISA BETH KACHIKIS M.D.

Obstetrics & Gynecology (Maternal & Fetal Medicine)

1959 NE PACIFIC ST, 3RD FLOOR SW 350
SEATTLE, WA 98195

King County (206) 598-4070

MS. MARY PATRICIA DODGE MS, OTR/L

Occupational Therapist

1959 NE PACIFIC ST, MAILBOX 356490
SEATTLE, WA 98195

King County (206) 598-4830

RIKA SHIRAKAWA M.D.

Ophthalmology

1959 NE PACIFIC ST, BOX 365485
SEATTLE, WA 98195

King County (206) 558-9616

VEDA TSOI M.D.

Anesthesiology

1959 NE PACIFIC ST
SEATTLE, WA 98195

King County (801) 556-7628

KATHRYN TAMURA PHARM.D.

Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)

1959 NE PACIFIC ST, BOX 356015
SEATTLE, WA 98195

King County (206) 598-6060

DR. MARK ROBERT, MICHAEL KILGORE M.D.

Pathology (Anatomic Pathology & Clinical Pathology)

1959 NE PACIFIC ST, BOX 356100
SEATTLE, WA 98195

King County (206) 598-1821

DR. SERKAN MEHMET SAHIN M.D.

Hospitalist

1959 NE PACIFIC ST
SEATTLE, WA 98195

King County (206) 543-6420

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.

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 14 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.