Ilan Zawadzki, MD
Nephrology Physician · Seattle, WA
Ilan Zawadzki, MD is a nephrology physician with a practice address in Seattle, Washington, and NPI 1538111521, issued on May 17, 2006. Check the license (Washington MD00021873, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Ilan Zawadzki
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- MD00021873 WA
Self-reported in NPPES; status is on the state search - Practice location
- 125 16TH Ave E, Seattle, WA 98112
- Phone
- (206) 326-3000
- Enumerated
- May 17, 2006
- Record last updated
- May 12, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 8143448 WA
- Medicare enrollment
- Enrolled (PECOS I20060523000002); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 1983
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 284 in Washington → Look up another NPI →
Also registered at 125 16TH Ave E
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Gregory Allen, M.D.Family Medicine Physician1760530026
- Abraham Alvarado-Gonzalez, MDNeurological Surgery Physician1346642501
Verify Ilan Zawadzki in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00021873Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% fewer Medicare Part D claims than the average nephrology physician in 2024
605 Medicare Part D claims for 118 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.
Most prescribed
- Losartan Potassium99 claims
- Sevelamer Carbonate58 claims
- Furosemide53 claims
- Amlodipine Besylate38 claims
- Calcitriol32 claims
- Potassium Chloride29 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
- Kaiser Foundation Health Plan OF WashingtonSeattle, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ilan Zawadzki among 284 nephrology physician records in Washington
Ilan Zawadzki, MD is one of 284 nephrology physician records with a practice address in Washington. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 56% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 75% of these records are
- Graduated1983 · median 2003 among the 213 with a school on file
- Record last updated2021 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Washington
There are 284 nephrology physician records in Washington.
All 284 in Washington → Every provider in Seattle → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- David Charney, M.D.Seattle, WA 981121760549042
- Christine Flogel, M.D.Seattle, WA 981121023298817
- Jillian Hansen, DOSeattle, WA 981121104160936
- Jamshid Honari, M.D.Seattle, WA 981121184762833
- Duangporn Jitjai, M.D.Seattle, WA 981121629464417
- Anupama Nair, M.DSeattle, WA 981121497068613
- Muniba JavedSeattle, WA 981151255759379
- Ke Wang, M.D.Seattle, WA 981091265723381
Common questions
What is Ilan Zawadzki, MD's NPI number?
Ilan Zawadzki, MD's National Provider Identifier (NPI) is 1538111521, issued on May 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ilan Zawadzki, MD located?
The NPPES record lists a practice address at 125 16TH Ave E, Seattle, WA, 98112. Phone: (206) 326-3000. Providers update this record themselves, so call before visiting.
How can I verify Ilan Zawadzki, MD's license?
NPPES lists Washington license number MD00021873, 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 Ilan Zawadzki, MD prescribe under Medicare Part D?
In 2024, Ilan Zawadzki, MD had 605 Medicare Part D claims for 118 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.