Ken Koyanagawa, DO

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

OP61674900 Issued in WA

Practice address

4205 Kitsap Way
Bremerton, WA 98312-2447

Phone

(360) 782-7780

Fax

(360) 782-7789

NPI assigned

May 24, 2021

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in NY, WA2 enrollments

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 2

Specialty

Emergency Medicine

Education

Other, 2021

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Franciscan Medical GroupGroup PAC ID 0547173866, 1,400 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• St Michael Medical Center Hospital, Silverdale, WA, CCN 500039

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy, Physician Assistant

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://fhir4.healow.com/fhir/r4/CHFABD
• Direct secure messaging: kkoyanagawa908197@fhsce.catholichealth.net

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Franciscan Medical Group

  dba Westsound Orthopaedics A part of the Franciscan Medical Group

  • Orthopaedic Surgery Physician
  • Silverdale, WA
  • NPI 1093165334
  Medicare reassignment Care Compare group NPD
• Northwest Emergency Physicians LLC

  dba Nep

  • Emergency Medicine Physician
  • Arlington, WA
  • NPI 1235172370
  Medicare reassignment NPD
• Northwest Observation Associates PC

  • Internal Medicine Physician
  • Federal Way, WA
  • NPI 1023539376
  Medicare reassignment NPD
• Modern Physician Services PC

  dba ModernMD Urgent Care

  • Urgent Care Clinic/Center
  • Brooklyn, NY
  • NPI 1932590601
  Medicare reassignment NPD
• Franciscan Medical Group

  • Family Medicine Physician
  • Tacoma, WA
  • NPI 1366539421
  NPD
• Franciscan Medical Group

  dba Franciscan Medical Clinic-Gig Harbor

  • Family Medicine Physician
  • Gig Harbor, WA
  • NPI 1386602555
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Commonspirit Washington Community Care

  dba St Michael Medical Center

  • General Acute Care Hospital
  • Silverdale, WA
  • NPI 1518912609
  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1621814400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1767052800000",
    "number": "1225603053",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4205 KITSAP WAY",
            "city": "BREMERTON",
            "state": "WA",
            "postal_code": "983122447",
            "telephone_number": "360-782-7780",
            "fax_number": "360-782-7789"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4205 KITSAP WAY",
            "city": "BREMERTON",
            "state": "WA",
            "postal_code": "983122447",
            "telephone_number": "360-782-7780",
            "fax_number": "360-782-7789"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "450 S Kitsap Blvd Ste 100",
            "address_purpose": "LOCATION",
            "city": "Port Orchard",
            "state": "WA",
            "postal_code": "983663709",
            "country_code": "US",
            "telephone_number": "360-895-7620",
            "fax_number": "360-895-7638",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KOYANAGAWA",
        "first_name": "KEN",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2021-05-24",
        "last_updated": "2025-12-30",
        "certification_date": "2025-12-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "WA",
            "license": "OP61674900",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Leeann Koll
• Cindy Christine Kolp, CDP
• Daniel Kolp
• Kayla Sue Kooker, LMP
• Catherine E Kovar, ARNP
• Annabelle Kraus
• Jennifer Lynn Kreidler-Moss, PHARM D
• Aidan Krisman
• Alexia Kritsonis
• Jay Ronald Krog, O.D.

• Emergency Medicine Physician in Bremerton, WA
• Providers in Bremerton, WA by specialty
• Emergency Medicine Physician in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 30, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.