NPPES file of Aug 9, 2026

Stefano Johnson, MD

Diagnostic Radiology Physician · Federal Way, WA

Stefano Johnson, MD is a diagnostic radiology physician with a practice address in Federal Way, Washington, and NPI 1689150401, issued on Jul 15, 2018. Check the license (Washington MDRE.ML.60960928, 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
1689150401
Name
Stefano Johnson
Credential
MD
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License numbers
MDRE.ML.60960928 WA
A185070 CA
LP04446 RI
Self-reported in NPPES; status is on the state search
Practice location
533 S 336TH St Ste C, Federal Way, WA 98003
Phone
(253) 661-1700
Enumerated
Jul 15, 2018
Record last updated
Jan 19, 2026
Medicare enrollment
Enrolled (PECOS I20240724002773); accepts Medicare assignment
Medical or professional school
Warren Alpert Medical School Of Brown University, 2018
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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Also registered at 533 S 336TH St Ste C

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

  1. Elliot Breshears, MDDiagnostic Radiology Physician1104484278
  2. Keith Chan, MDDiagnostic Radiology Physician1295001972
  3. Stephanie Clements, MDDiagnostic Radiology Physician1669977575
  4. Dylan Constantino, MDVascular & Interventional Radiology Physician1881154516
  5. Anna Ellermeier, M.D.Diagnostic Radiology Physician1538487434
  6. Kathryn Greenberg, D.O.Diagnostic Radiology Physician1114161429

Verify Stefano Johnson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MDRE.ML.60960928
    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 one group practice

  1. Vantage Radiology And Diagnostic Services, A Professional Services CorFederal Way, WA

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

Stefano Johnson among 1,041 diagnostic radiology physician records in Washington

Stefano Johnson, MD 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 2018, is newer than 90% of them.

  • NPI issued2018 · 90% of these records are older, 7% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2018 · median 2004 among the 682 with a school on file
  • Record last updated2026 · 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).

48 diagnostic radiology physician records list a practice address in Federal Way

They are 48 of the 2,770 NPPES records with a practice address in Federal Way, and 1,041 diagnostic radiology physician records in Washington.

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. John Bauman, M.D.Federal Way, WA 980031417956236
  2. John Bowen, M.D.Federal Way, WA 980031306845128
  3. James Chen, M.D.Federal Way, WA 980031659370328
  4. Paul Chikos, M.D.Federal Way, WA 980031538168216
  5. Gordon Greenman, M.D.Federal Way, WA 980031831198514
  6. Robert Heathcock, M.D.Federal Way, WA 980031548269137
  7. Virginia Klaas, M.D.Federal Way, WA 980031639178320
  8. Robert Klein, M.D.Federal Way, WA 980031487653085

Common questions

What is Stefano Johnson, MD's NPI number?

Stefano Johnson, MD's National Provider Identifier (NPI) is 1689150401, issued on Jul 15, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Stefano Johnson, MD located?

The NPPES record lists a practice address at 533 S 336TH St Ste C, Federal Way, WA, 98003. Phone: (253) 661-1700. Providers update this record themselves, so call before visiting.

How can I verify Stefano Johnson, MD's license?

NPPES lists Washington license number MDRE.ML.60960928, 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.

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.