Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Stefano Johnson, MD

Individual provider Diagnostic Radiology Physician · NPI 1689150401

Stefano Johnson, MD practises Diagnostic Radiology in Federal Way, Washington. Graduated from Warren Alpert Medical School of Brown University in 2018, 8 years ago. Practices with Vantage Radiology and Diagnostic Services, a Professional Services Cor, a 40-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in California, Rhode Island and Washington.

Years since qualifying
8
Trained at
Warren Alpert Medical School of Brown University
Licensed in
CA, RI, WA
In the registry since
2018
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

533 S 336th St Ste C
Federal Way, WA 98003-6329
Phone: (253) 661-1700
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 505 Parnassus Ave # M-391, San Francisco, CA 94143-2204 — (415) 476-1000
  • 925 Seneca St., Seattle, WA 98101 — (206) 583-6079
  • 925 Seneca St., Seattle, WA 98101 — (206) 583-6079

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence A185070 (CA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X · Licence MDRE.ML.60960928 (WA)
Internal Medicine Physician Taxonomy 207R00000X · Licence LP04446 (RI)

Record details

NPI number1689150401
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 15, 2018
Last updated in NPPESJanuary 19, 2026
Certification dateJanuary 19, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolWARREN ALPERT MEDICAL SCHOOL OF BROWN UNIVERSITY
Graduated 2018 (8 years in practice)
Group practice Vantage Radiology And Diagnostic Services, A Professional Services Cor — 40 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients492
Services billed 652 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Multicare Auburn Medical Center Hospital · Auburn, WA
  • Multicare Covington Medical Center Hospital · Covington, WA
  • Tacoma General Allenmore Hospital Hospital · Tacoma, WA
  • Valley Medical Center Hospital · Renton, WA

Colleagues at Vantage Radiology and Diagnostic Services, a Professional Services Cor

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 40 clinicians in the practice; 12 are shown here.

Other providers in Federal Way