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

Dr. Phillip Oliver Coffin, MD

Individual provider Internal Medicine Physician · NPI 1265616296

Dr. Phillip Oliver Coffin, MD is an Internal Medicine in Seattle, Washington. Graduated from University of California, San Francisco School of Medicine in 2006, 20 years ago. Practices with Sutter Bay Medical Foundation, a 3,762-clinician group and accepts Medicare assignment. Licensed in California, New York and Washington.

Years since qualifying
20
Trained at
University of California, San Francisco School of Medicine
Licensed in
CA, NY, WA
In the registry since
2007
Specialties on file
4
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

1100 9th Ave
Seattle, WA 98101-2756
Phone: (206) 341-0860
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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 A119921 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 245672 (NY)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD60070574 (WA)
Hospitalist Physician Taxonomy 208M00000X · Licence MD60070574 (WA)

Record details

NPI number1265616296
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 27, 2007
Last updated in NPPESFebruary 16, 2021
Certification dateFebruary 16, 2021

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesINFECTIOUS DISEASE
Medical schoolUNIVERSITY OF CALIFORNIA, SAN FRANCISCO SCHOOL OF MEDICINE
Graduated 2006 (20 years in practice)
Group practice Sutter Bay Medical Foundation — 3762 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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