JOHN HEMMEN MD
NPI 1659329605
Emergency Medicine - Emergency Medical Services in Seattle, WA
About John Hemmen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN HEMMEN MD (NPI 1659329605) is an individual emergency medical services provider in Seattle, Washington, licensed in Washington (MD00015059) and active in the NPI registry since May 2006.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SEATTLE, WA 98107
SEATTLE, WA 98107
SEATTLE, WA 98107
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is John Hemmen's NPI number?
The NPI number for John Hemmen is 1659329605. It was assigned to this individual provider in the NPPES registry on May 4, 2006.
Where is John Hemmen located?
John Hemmen practices at 5300 Tallman Ave NW, Seattle, WA 98107. The listed phone number is (206) 782-2700.
What is John Hemmen's specialty?
The primary specialty registered for this NPI is Emergency Medicine, specializing in Emergency Medical Services, with taxonomy code 207PE0004X.
When was this NPI record last updated?
The NPPES record for John Hemmen was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 34 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# John Hemmen, MD · NPI 1659329605
Emergency Medical Services physician in Seattle, Washington. Individual provider, active in the CMS NPPES registry since May 4, 2006.
## Identity
- **NPI:** 1659329605 (Entity type: Individual)
- **Enumerated:** May 4, 2006
- **Primary specialty:** Emergency Medicine - Emergency Medical Services · taxonomy 207PE0004X
- **State license:** MD00015059 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 5300 TALLMAN AVE NW, Seattle, WA 98107-3932
- **Phone:** (206) 782-2700
## Record status
- **NPPES last updated:** July 13, 2026
- **Other identifiers:** Medicaid 1229301 (WA)
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Source: [NPI Profile](https://npiprofile.com/npi/1659329605) · Data from the CMS NPPES public registry.