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

Timothy James Joos, MD

Individual provider Internal Medicine Physician · NPI 1740265735

Timothy James Joos, MD is registered under General Practice in Seattle, Washington. Graduated from University of Minnesota Medical School in 1993, 33 years ago. Practices with Neighborcare Health, a 102-clinician group and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
33
Trained at
University of Minnesota Medical School
Licensed in
WA
In the registry since
2005
Specialties on file
2
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

4400 37th Ave S
Seattle, WA 98118-1609 Not confirmed with CMS for 14 years — call before visiting
Phone: (206) 461-6957
Fax: (206) 461-7810
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD00043045 (WA)
Pediatrics Physician Taxonomy 208000000X · Licence MD00043045 (WA)

Record details

NPI number1740265735
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 13, 2005
Last updated in NPPESNovember 3, 2011

Medicare enrollment

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

Medicare specialtyGENERAL PRACTICE
Also practisesPEDIATRIC MEDICINE
Medical schoolUNIVERSITY OF MINNESOTA MEDICAL SCHOOL
Graduated 1993 (33 years in practice)
Group practice Neighborcare Health — 102 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 patients33
Services billed 130 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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.

Colleagues at Neighborcare Health

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 102 clinicians in the practice; 12 are shown here.

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