Dr. Ilan Zawadzki, MD
- Medicare services, 2018
- 35
- Medicare patients, 2024
- 20
- Part D claims, 2024
- 605
- Industry payments
- $60
- Affiliated sites
- 1
- Practice address
- 1231 116th NE Ave, Bellevue, WA 98004
- Practice phone
- Call (425) 454-5344
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Proliance Surgical Specialists at Overlake
Bellevue, Washington
Find Dr. Zawadzki's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Ilan Zawadzki is a nephrologist in Bellevue, Washington
Dr. Zawadzki practices at Proliance Surgical Specialists at Overlake in Bellevue, Washington.
Dr. Zawadzki's NPI, 1538111521, was assigned on May 17, 2006. Dr. Zawadzki graduated from New York University School of Medicine in 1983. Dr. Zawadzki holds Washington license MD00021873.
- NPI
- 1538111521NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0042221400
- NPI enumeration date
- May 17, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (425) 454-5344
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 69
- Medical school graduation
- 1983
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ilan Zawadzki practices at Proliance Surgical Specialists at Overlake in Bellevue, Washington
Dr. Zawadzki's primary practice is Proliance Surgical Specialists at Overlake, at 1231 116th NE Ave, Bellevue, WA 98004 in King County. The practice phone is (425) 454-5344.
- Proliance Surgical Specialists at Overlake1231 116th NE Ave, Bellevue, WA 98004 · King CountyPhone(425) 454-5344
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Ilan Zawadzki is affiliated with 2 sites of care and 1 medical group
Dr. Zawadzki's primary practice is Proliance Surgical Specialists at Overlake in Bellevue, Washington. The medical group on file is Washington Permanente Medical Group, P.C. Dmand AI also links Dr. Zawadzki to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Ilan Zawadzki's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Zawadzki practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Proliance Surgical Specialists at Overlake | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ilan Zawadzki is one of 225 nephrologists in Washington
Nephrology is Dr. Zawadzki's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Zawadzki is licensed in Washington.
Specialties and state licenses
- Nephrology, WashingtonPrimary
Nephrologists near Dr. Zawadzki
Counts of nephrologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Ilan Zawadzki billed Medicare for 35 services in 2018
CMS data shows 35 Medicare services from Dr. Zawadzki across 1 procedure code in 2018, for 20 Medicare patients. Medicare paid $4,526 for them. Every service was in an office.
Dr. Zawadzki's Medicare services by type, 2017 to 2018
- 2017
- 2018
- Tests and treatments
- 2017: 422018: 3517%
Dr. Zawadzki compared with the Washington median for nephrologists, 2018
- Dr. Zawadzki
- Washington median
- Medicare services
- 35vs 70395% below
- Medicare patients
- 20vs 21090% below
- Part D claims
- 449vs 67634% below
Medians across 217 nephrologists in Washington with Dmand AI profiles that report each measure.
Dr. Zawadzki's most billed Medicare procedure codes, 2018
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ilan Zawadzki treated 20 Medicare patients in 2024, average age 69
CMS counts 20 Medicare patients who saw Dr. Zawadzki in 2024. 75% of them have chronic kidney disease, and 75% have diabetes. Their average risk score is 4.16, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Zawadzki's median patient age at 74, with 44% women.
Chronic conditions among Dr. Zawadzki's Medicare patients, 2024
- Chronic kidney disease75%
- Diabetes75%
- High blood pressure75%
- High cholesterol65%
Share of Medicare patients with each condition. A patient can have several.
Dr. Zawadzki's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women44%
- Men56%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ilan Zawadzki wrote 605 Medicare Part D claims in 2024
In 2024, Dr. Zawadzki wrote 605 Medicare Part D claims for 118 patients. 95% of them were for generic drugs. CMS names the drug for 449 of them, across 13 drugs with 11 or more claims each, at $24,787 in total drug cost. In 2023, CMS named 187 claims across 8 drugs.
Dr. Zawadzki's Part D claims by kind of drug, 2024
- Generic574 claims95%
- Brand-name and other31 claims5%
Dr. Zawadzki's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1872024: 449140%
Drugs named by CMS: 13 in 2024, 8 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Ilan Zawadzki offers telehealth to Medicare patients
Dr. Zawadzki accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Zawadzki as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Ilan Zawadzki received $60 in industry payments in 2025
CMS Open Payments shows 1 general payment to Dr. Zawadzki from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Stryker Corporation paid the most, $60.
Companies that paid Dr. Zawadzki the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ilan Zawadzki graduated from New York University School of Medicine
Dr. Zawadzki graduated from New York University School of Medicine in 1983.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ilan Zawadzki's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Ilan Zawadzki
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Ilan Zawadzki's NPI number?
Dr. Ilan Zawadzki's NPI number is 1538111521. It was assigned on May 17, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Ilan Zawadzki?
Dr. Ilan Zawadzki is a nephrologist in Bellevue, Washington. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Ilan Zawadzki practice?
Dr. Zawadzki practices at 1231 116th NE Ave, Bellevue, WA 98004. Dr. Zawadzki's primary practice is Proliance Surgical Specialists at Overlake in Bellevue, Washington. Dmand AI also links Dr. Zawadzki to 1 group practice or clinic.
What is Dr. Ilan Zawadzki's office phone number?
The practice phone on file for Dr. Zawadzki is (425) 454-5344.
What is Dr. Ilan Zawadzki's medical license number?
Dr. Zawadzki holds Washington license MD00021873.
What medical group is Dr. Ilan Zawadzki part of?
Dr. Zawadzki is linked to Washington Permanente Medical Group, P.C.
Does Dr. Ilan Zawadzki accept Medicare?
Yes. CMS data shows Dr. Zawadzki billed Medicare for 35 services in 2018, and Dr. Zawadzki accepts Medicare assignment.
Does Dr. Ilan Zawadzki offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Zawadzki as offering telehealth services.
How many Medicare patients does Dr. Ilan Zawadzki see?
CMS counts 20 Medicare patients who saw Dr. Zawadzki in 2024, with an average age of 69.
What services does Dr. Ilan Zawadzki bill to Medicare?
In 2018, Dr. Zawadzki's most billed Medicare services were dialysis (90962).
Show 4 more questionsShow fewer questions
Where did Dr. Ilan Zawadzki go to medical school?
Dr. Zawadzki graduated from New York University School of Medicine in 1983.
What drugs does Dr. Ilan Zawadzki prescribe most?
In 2024 Medicare Part D data, Dr. Zawadzki's most prescribed drugs by claims were Losartan Potassium, Sevelamer Carbonate and Furosemide.
Has Dr. Ilan Zawadzki received payments from drug or device companies?
CMS Open Payments shows $60 in general payments to Dr. Zawadzki from 1 company from 2025 to 2025. The largest total came from Stryker Corporation.
How long has Dr. Ilan Zawadzki been practicing?
Dr. Zawadzki graduated from medical school in 1983, 43 years ago.
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