Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Colin Daniel Fields, MD

Individual provider Family Medicine Physician · NPI 1902123896

Dr. Colin Daniel Fields, MD is registered under Family Practice in Seattle, Washington. Qualified in 2010, 16 years ago. Practices with Kaiser Foundation Health Plan of Washington, a 1,519-clinician group and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
16
Licensed in
WA
In the registry since
2010
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

125 16th Ave E
Seattle, WA 98112-5211
Phone: (206) 326-3000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence MD60305677 (WA)

Record details

NPI number1902123896
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 1, 2010
Last updated in NPPESFebruary 3, 2025
Certification dateFebruary 3, 2025

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolOTHER
Graduated 2010 (16 years in practice)
Group practice Kaiser Foundation Health Plan Of Washington — 1519 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Colleagues at Kaiser Foundation Health Plan of Washington

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1519 clinicians in the practice; 12 are shown here.

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