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

Dr. Jonathan Seth Ilgen, MD

Individual provider Emergency Medicine Physician · NPI 1457441719

Dr. Jonathan Seth Ilgen, MD is an Emergency Medicine Physician in Seattle, Washington. Practices as a sole proprietor. Licensed in Massachusetts, Oregon and Washington.

Licensed in
MA, OR, WA
In the registry since
2006
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

325 9th Ave Box #359702 Harborview Medical Center
Seattle, WA 98104-2420 Not confirmed with CMS for 16 years — call before visiting
Phone: (323) 828-4049
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence MD.MD.60132122 (WA)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 221439 (MA)
Emergency Medicine Physician Taxonomy 207P00000X · Licence MD28233 (OR)

Record details

NPI number1457441719
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedOctober 14, 2006
Last updated in NPPESJune 23, 2010

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 patients93
Services billed 107 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

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.

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