NPPES file of Aug 9, 2026

Adam Iwanski, M.D.

Internal Medicine Physician · Seattle, WA

Adam Iwanski, M.D. is an internal medicine physician with a practice address in Seattle, Washington, and NPI 1548678527, issued on Jul 23, 2014. Check the license (Washington MD60753238, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1548678527
Name
Adam Iwanski
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
MD60753238 WA
Self-reported in NPPES; status is on the state search
Practice location
1145 Broadway, Seattle, WA 98122
Phone
(206) 329-1760
Enumerated
Jul 23, 2014
Record last updated
Apr 18, 2025
Medicare enrollment
Enrolled (PECOS I20170714001425); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest internal medicine physician records → All 3,079 in Washington → Look up another NPI →

Also registered at 1145 Broadway

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Richard Agress, M.D.Obstetrics & Gynecology Physician1215902036
  2. Rabiah Ahmad, PA-CPhysician Assistant1407519754
  3. Philip Anderson, PHARM.D.Pharmacist1477731909
  4. John Bishop, ARNPNurse Practitioner1881669752
  5. J Brodsky, MDInternal Medicine Physician1073532859
  6. Kelly Bui, MDOphthalmology Physician1235367103

Verify Adam Iwanski in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD60753238    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Washington license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through 2 group practices

  1. Hospital Medicine OF AK LLCAnchorage, AK
  2. Providence Health And Services- WashingtonEverett, WA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Adam Iwanski among 3,079 internal medicine physician records in Washington

Adam Iwanski, M.D. is one of 3,079 internal medicine physician records with a practice address in Washington. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 73% of them.

  • NPI issued2014 · 73% of these records are older, 24% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2010 · median 2006 among the 1,852 with a school on file
  • Record last updated2025 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

821 internal medicine physician records list a practice address in Seattle

They are 821 of the 41,956 NPPES records with a practice address in Seattle, and 3,079 internal medicine physician records in Washington.

All 3,079 in Washington → Every provider in Seattle → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Kenji Asakura, MDSeattle, WA 981221538179965
  2. Nassim Assefi, MDSeattle, WA 981221558441055
  3. Kimberly Bell, MDSeattle, WA 981221730262767
  4. J Brodsky, MDSeattle, WA 981221073532859
  5. Bennett Burke, MDSeattle, WA 981221821171851
  6. Edward Chun, M.D.Seattle, WA 981221639150436
  7. Joseph Denor, MDSeattle, WA 981221679548531
  8. Peggy Eaton, M.D.Seattle, WA 981221326001918

Common questions

What is Adam Iwanski, M.D.'s NPI number?

Adam Iwanski, M.D.'s National Provider Identifier (NPI) is 1548678527, issued on Jul 23, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Adam Iwanski, M.D. located?

The NPPES record lists a practice address at 1145 Broadway, Seattle, WA, 98122. Phone: (206) 329-1760. Providers update this record themselves, so call before visiting.

How can I verify Adam Iwanski, M.D.'s license?

NPPES lists Washington license number MD60753238, 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.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.