Nadine El-Ayache, DO
Rheumatology Physician · Seattle, WA
Nadine El-Ayache, DO is a rheumatology physician with a practice address in Seattle, Washington, and NPI 1053962118, issued on Sep 20, 2019. Check the license (Washington OP61415493, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Nadine El-Ayache
- Credential
- DO
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- OP61415493 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1959 NE Pacific St, Seattle, WA 98195
- Phone
- (206) 520-5000
- Enumerated
- Sep 20, 2019
- Record last updated
- Jun 4, 2025
- Medicare enrollment
- Enrolled (PECOS I20250617000546); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 200 in Washington → Look up another NPI →
Also registered at 1959 NE Pacific St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Nandini AbburiNeurology Physician1730618349
- Mohamed AbdelmotlebDiagnostic Radiology Physician1134892656
Verify Nadine El-Ayache in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license OP61415493Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average rheumatology physician in 2024
162 Medicare Part D claims for 21 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Prednisone41 claims
- Methotrexate17 claims
- Diclofenac Sodium13 claims
- Hydroxychloroquine Sulfate13 claims
- Meloxicam11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- The Association OF University PhysiciansSeattle, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nadine El-Ayache among 200 rheumatology physician records in Washington
Nadine El-Ayache, DO is one of 200 rheumatology physician records with a practice address in Washington. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 91% of them.
- NPI issued2019 · 91% of these records are older, 6% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2019 · median 2005 among the 123 with a school on file
- Record last updated2025 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in Washington
There are 200 rheumatology physician records in Washington.
All 200 in Washington → Every provider in Seattle → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Muhsen AlaniSeattle, WA 981951144633504
- Brent Appleton, MDSeattle, WA 981951831292242
- Jeffrey Carlin, MDSeattle, WA 981951932218948
- Myriam Guevara, MDSeattle, WA 981951467604348
- Tetsuya Hoshi, MDSeattle, WA 981951639289903
- David MartinSeattle, WA 981951902996853
- Neelufar MozaffarianSeattle, WA 981951386729192
- Judith NelsonSeattle, WA 981951467537274
Common questions
What is Nadine El-Ayache, DO's NPI number?
Nadine El-Ayache, DO's National Provider Identifier (NPI) is 1053962118, issued on Sep 20, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Nadine El-Ayache, DO located?
The NPPES record lists a practice address at 1959 NE Pacific St, Seattle, WA, 98195. Phone: (206) 520-5000. Providers update this record themselves, so call before visiting.
How can I verify Nadine El-Ayache, DO's license?
NPPES lists Washington license number OP61415493, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Nadine El-Ayache, DO prescribe under Medicare Part D?
In 2024, Nadine El-Ayache, DO had 162 Medicare Part D claims for 21 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.