Skip to main content

Dr. Colin D. Fields, M.D.

Family Medicine (Family Medicine Physician)

125 16th Ave E
Seattle, WA 98112

Who else practices at this address →

King County includes primary care (5% of residents) and dental (4% of residents) and mental health (4% of residents) shortage areas. About shortage areas

Call (206) 326-3000

At a glance

Years since graduation
16
In the NPI registry since
2010

Licensed in Washington since 2012, according to the Washington State Department of Health. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.

The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. What an NPI is

Education and training

  • 2010Registered with an NPI (national billing number; not a license date)

Medicare’s Care Compare data doesn’t list this clinician’s medical school. Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).

Specialties and state licenses

  • Family Medicine Physician primary
    WA license MD60305677 (first issued 2012; active)

As reported to the NPI registry. To confirm a license is current, check the state medical board.

Map: Family Medicine per capita by county →

Where they work

Medical groups

Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.

Medicare prescriptions

Most prescribed drugs, Medicare Part D 2024
DrugPrescriptions
Biktarvy (bictegrav/emtricit/tenofov ala)141
Dovato (dolutegravir sodium/lamivudine)47
Darunavir46
Ritonavir42
Isentress (raltegravir potassium)25
Efavirenz-Emtric-Tenofov Disop (efavirenz/emtricit/tenofovr df)24
Genvoya (elviteg/cob/emtri/tenof alafen)23
Lamivudine21
Atazanavir Sulfate19
Odefsey (emtricitab/rilpiviri/tenof ala)19

Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.

Other Family Medicine clinicians in Seattle

Sources

NPI registry (CMS NPPES, November 2026; record last updated February 3, 2025), Medicare Care Compare, Medicare Physician & Other Practitioners (2024), Medicare Part D Prescribers (2024) and Open Payments (2025). Information is self-reported or billed data and may be out of date; call before visiting.

NPI 1902123896. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.