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

Ken Koyanagawa, DO

Individual provider Emergency Medicine Physician · NPI 1225603053

Ken Koyanagawa, DO is an Emergency Medicine in Bremerton, Washington. Qualified in 2021, 5 years ago. Practices with Franciscan Medical Group, a 1,417-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
5
Licensed in
WA
In the registry since
2021
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

4205 Kitsap Way
Bremerton, WA 98312-2447
Phone: (360) 782-7780
Fax: (360) 782-7789
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 450 S Kitsap Blvd Ste 100, Port Orchard, WA 98366-3709 — (360) 895-7620

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence OP61674900 (WA)

Record details

NPI number1225603053
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 24, 2021
Last updated in NPPESDecember 30, 2025
Certification dateDecember 30, 2025
Mailing address4205 Kitsap Way, Bremerton, WA 98312-2447

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolOTHER
Graduated 2021 (5 years in practice)
Group practice Franciscan Medical Group — 1417 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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