Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Stefan Z Wiktor

Individual provider Internal Medicine Physician · NPI 1366306482

Dr. Stefan Z Wiktor is an Internal Medicine Physician in Seattle, Washington. Practices as a sole proprietor. Licensed in Washington.

Licensed in
WA
In the registry since
2025

Practice location Address checks out

5506 16th Ave NE
Seattle, WA 98105-3415
Phone: (206) 661-3597
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 61394323 (WA)

Record details

NPI number1366306482
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedDecember 12, 2025
Last updated in NPPESDecember 17, 2025
Certification dateDecember 17, 2025
Mailing address5506 16th Ave Ne, Seattle, WA 98105-3415

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