Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

THOMAS HOWARD JANSEN D.O.
NPI 1861433906
Family Medicine in Seattle, WA

Active since June 09, 2006
1551 NW 54TH ST, SEATTLE, WA 98107(206) 782-3383(206) 782-9585 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Thomas Howard Jansen D.o. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

THOMAS HOWARD JANSEN D.O. (NPI 1861433906) is an individual family medicine provider in Seattle, Washington, licensed in Washington (OP00000948) and active in the NPI registry since June 2006.

NPPES Registry Identity

NPI1861433906
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameTHOMAS HOWARD JANSENCredential: D.O.
Location Address1551 NW 54TH STSeattle, WA 98107-3845
Mailing Address1551 Nw 54th StSeattle, WA 98107-3845 · (206) 782-3383 · Fax (206) 782-9585
Fax(206) 782-9585
Sole ProprietorNo
Enumeration DateJune 9, 2006
Last NPPES UpdateJuly 13, 2026
NPI 1861433906 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License Licensed in WA · OP00000948
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
1551 NW 54TH ST, Seattle, WA 98107

Other Identifiers 1

Medicaid1086644WA

Accepted Insurance

Other Providers at the Same Location NPPES 15

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Physical Medicine & Rehabilitation (Sports Medicine)
1551 NW 54TH ST
SEATTLE, WA 98107
Counselor (Mental Health)
1551 NW 54TH ST, SUITE 102
SEATTLE, WA 98107
Massage Therapist
1551 NW 54TH ST, SUITE 103
SEATTLE, WA 98107
Physical Therapist
1551 NW 54TH ST
SEATTLE, WA 98107
Registered Nurse (Medical-Surgical)
1551 NW 54TH ST
SEATTLE, WA 98107
Dentist (General Practice)
1551 NW 54TH ST, #104
SEATTLE, WA 98107
Counselor (Mental Health)
1551 NW 54TH ST
SEATTLE, WA 98107
Massage Therapist
1551 NW 54TH ST, SUITE 103
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 Thomas Jansen's NPI number?

The NPI number for Thomas Jansen is 1861433906. It was assigned to this individual provider in the NPPES registry on June 9, 2006.

Where is Thomas Jansen located?

Thomas Jansen practices at 1551 NW 54th St, Seattle, WA 98107. The listed phone number is (206) 782-3383.

What is Thomas Jansen's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

What insurance does Thomas Jansen accept?

Health plans from PacificSource Health Plans and Providence Health Plan list Thomas Jansen as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Thomas Jansen 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 26 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.