KEN KOYANAGAWA DO
NPI 1225603053
Emergency Medicine in Bremerton, WA

Q: What is Ken Koyanagawa's NPI number?

The NPI number for Ken Koyanagawa is 1225603053. It was assigned to this individual provider in the NPPES registry on May 24, 2021.

Q: What is Ken Koyanagawa's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Q: When was this NPI record last updated?

The NPPES record for Ken Koyanagawa was last updated on December 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since May 24, 2021PECOS EnrolledAccepts Medicare Assignment

4205 KITSAP WAY, BREMERTON, WA 98312(360) 782-7780(360) 782-7789 Get Directions Write a Review

NPPES record last updated: December 30, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Dec 30, 2025, Jun 3, 2021, May 24, 2021 (3 updates tracked since 2021).

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About Ken Koyanagawa Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

KEN KOYANAGAWA DO (NPI 1225603053) is an individual emergency medicine provider in Bremerton, Washington, licensed in Washington (OP61674900) and active in the NPI registry since May 2021. He is enrolled in Medicare PECOS, is affiliated with Harrison Medical Center, and is a graduate of Other (2021).

NPPES Registry Identity

NPI1225603053

Entity TypeIndividualMale

Primary Taxonomy207P00000X

Provider Legal NameKEN KOYANAGAWACredential: DO

Location Address4205 KITSAP WAYBremerton, WA 98312-2447

Mailing Address4205 Kitsap WayBremerton, WA 98312-2447 · (360) 782-7780 · Fax (360) 782-7789

Phone(360) 782-7780

Fax(360) 782-7789

Sole ProprietorNo

Medical School CMSOtherGraduated 2021

Enumeration DateMay 24, 2021

Last NPPES UpdateDecember 30, 20253 updates tracked since enumeration

NPPES CertifiedDecember 30, 2025

✔ NPI 1225603053 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207P00000X

License✔ Licensed in WA · OP61674900

Definition

An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.

4205 KITSAP WAY, Bremerton, WA 98312

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Premera Blue Cross Blue Shield of Alaska.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ken Koyanagawa Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8123533163

PECOS Enrollment IDI20250811002691

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Harrison Medical Center

Acute Care Hospitals · Bremerton, WA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number500039

Location2520 Cherry AvenueBremerton, WA 98310 · Kitsap County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98312 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$88.29 typical visit price

range $57.27 – $172.80

Typical copayment $22.07 (range $14.31 – $43.20)

Most-billed visit code 99203

Established Patient

$100.78 typical visit price

range $18.56 – $141.11

Typical copayment $25.19 (range $4.64 – $35.27)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 19

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JORDAN TAKASUGI

Emergency Medicine