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

Dr. James Irvin Barnes IV, MD

Individual provider Internal Medicine Physician · NPI 1255607453

Dr. James Irvin Barnes IV, MD is a Hospitalist in Seattle, Washington. Qualified in 2012, 14 years ago. Practices with The Association of University Physicians, a 3,459-clinician group and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
14
Licensed in
WA
In the registry since
2012
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

1959 NE Pacific St
Seattle, WA 98195-0001
Phone: (206) 520-5000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence MD61126229 (WA)
Internal Medicine Physician Taxonomy 207R00000X · Licence BC61192336 (WA)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD61126229 (WA)

Record details

NPI number1255607453
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 1, 2012
Last updated in NPPESNovember 4, 2021
Certification dateNovember 4, 2021

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2012 (14 years in practice)
Group practice The Association Of University Physicians — 3459 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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