NPPES file of Aug 9, 2026

Alexander Napoleon Diaz

Diagnostic Radiology Physician · Seattle, WA

Alexander Napoleon Diaz is a diagnostic radiology physician with a practice address in Seattle, Washington, and NPI 1518428812, issued on Mar 28, 2019. Check the license (Washington MD61575447, 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
1518428812
Name
Alexander Napoleon Diaz
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License number
MD61575447 WA
Self-reported in NPPES; status is on the state search
Practice location
1959 NE Pacific St, Seattle, WA 98195
Phone
(206) 598-3300
Enumerated
Mar 28, 2019
Record last updated
Oct 3, 2025
Medicare enrollment
Enrolled (PECOS I20240815003559); accepts Medicare assignment
Medical or professional school
University Of California, San Francisco School Of Medicine, 2019
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.
Download card Updates feed

8 nearest diagnostic radiology physician records → All 1,041 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.

  1. Benjamin AaronsonPsychologist1497108880
  2. Laith Abandeh, MDPediatric Radiology Physician1609404243
  3. Rebecca AbayInternal Medicine Physician1528565520
  4. Gifti Abbo, MDStudent in an Organized Health Care Education/Training Program1316688989
  5. Nandini AbburiNeurology Physician1730618349
  6. Mohamed AbdelmotlebDiagnostic Radiology Physician1134892656

Verify Alexander Napoleon Diaz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD61575447    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Bills Medicare through one group practice

  1. 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).

Alexander Napoleon Diaz among 1,041 diagnostic radiology physician records in Washington

Alexander Napoleon Diaz is one of 1,041 diagnostic radiology physician records with a practice address in Washington. 67% 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 93% of them.

  • NPI issued2019 · 93% of these records are older, 6% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2019 · median 2004 among the 682 with a school on file
  • Record last updated2025 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Diagnostic Radiology Physician providers in Washington

There are 1,041 diagnostic radiology physician records in Washington.

All 1,041 in Washington → Every provider in Seattle → Diagnostic Radiology Physician nationwide →

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. David Bolus, M.D.Seattle, WA 981951104823491
  2. Lisabeth Bush, M.D.Seattle, WA 981951912998097
  3. Matthew Cham, MDSeattle, WA 981951275547648
  4. Sammy Chu, M.D.Seattle, WA 981951972502656
  5. Stephen Eigles, M.D.Seattle, WA 981951619970787
  6. Lynn Hassan Jones, MDSeattle, WA 981951164478418
  7. Anil Khosla, M.D.Seattle, WA 981951679590319
  8. Vivek Manchanda, M.D.Seattle, WA 981951861428989

Common questions

What is Alexander Napoleon Diaz's NPI number?

Alexander Napoleon Diaz's National Provider Identifier (NPI) is 1518428812, issued on Mar 28, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Alexander Napoleon Diaz located?

The NPPES record lists a practice address at 1959 NE Pacific St, Seattle, WA, 98195. Phone: (206) 598-3300. Providers update this record themselves, so call before visiting.

How can I verify Alexander Napoleon Diaz's license?

NPPES lists Washington license number MD61575447, 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.