Ian Yen CH'En, MD

Primary specialty

Diagnostic Radiology PhysicianTaxonomy code 2085R0202X

License

MD00033869 Issued in WA

Practice address

19020 33Rd Ave W Ste 210
Lynnwood, WA 98036

Phone

(425) 563-1500

Fax

(425) 563-1501

NPI assigned

Jun 8, 2005

Last updated

Mar 5, 2026By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Other identifiers 3

Medicare fee-for-service enrollment

Enrolled in WA

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 1

Specialty

Diagnostic Radiology

Education

University of Rochester School of Medicine and Dentistry, 1989

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Radia Inc P SGroup PAC ID 9931012812, 275 clinicians

Evergreen Radia LLCGroup PAC ID 4587568076, 116 clinicians

Swedish Health ServicesGroup PAC ID 3173433067, 156 clinicians

Swedish Radia Imaging Center at Edmonds LLCGroup PAC ID 5496778292, 115 clinicians

Swedish Health ServicesGroup PAC ID 0244138196, 1,038 clinicians

Okanogan County Public Hospital District No. 3Group PAC ID 6800707951, 89 clinicians

Public Hospital District No 4 King County WashingtonGroup PAC ID 6002700861, 85 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Providence Regional Medical Center Everett Hospital, Everett, WA, CCN 500014
• Overlake Hospital Medical Center & Clinics Hospital, Bellevue, WA, CCN 500051
• Swedish Issaquah Hospital, Issaquah, WA, CCN 500152
• Swedish Medical Center Hospital, Seattle, WA, CCN 500027
• Evergreenhealth Medical Center Hospital, Kirkland, WA, CCN 500124

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations (25 of 28)

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

• Evergreen Radia LLC

  dba Evergreen Radia

  • Diagnostic Radiology Physician
  • Kirkland, WA
  • NPI 1922095694
  Medicare reassignment Care Compare group NPD
• Okanogan County Public Hospital District No. 3

  dba Mid-Valley Hospital

  • Critical Access Hospital
  • Omak, WA
  • NPI 1255387403
  Medicare reassignment Care Compare group NPD
• Public Hospital District No 4 King County Washington

  dba Snoqualmie Valley Hospital

  • Critical Access Hospital
  • Snoqualmie, WA
  • NPI 1902846546
  Medicare reassignment Care Compare group NPD
• Swedish Health Services

  dba Swedish Imaging Clinics

  • Body Imaging Physician
  • Everett, WA
  • NPI 1114356904
  Medicare reassignment Care Compare group NPD
• Swedish Health Services

  • Internal Medicine Physician
  • Seattle, WA
  • NPI 1689612954
  Medicare reassignment Care Compare group NPD
• Swedish Radia Imaging Center at Edmonds LLC

  dba Swedish Radia Edmonds

  • Diagnostic Radiology Physician
  • Edmonds, WA
  • NPI 1164494373
  Medicare reassignment Care Compare group NPD
• Radia Inc P S

  dba Radia

  • Diagnostic Radiology Physician
  • Lynnwood, WA
  • NPI 1932196607
  Medicare reassignment Care Compare group
• Okanogan County Public Hospital Dist No 4

  • Critical Access Hospital
  • Tonasket, WA
  • NPI 1164580700
  Medicare reassignment NPD
• Okanogan County Public Hospital Dist No 4

  dba North Valley Professional Services

  • Medical Specialty Clinic/Center
  • Tonasket, WA
  • NPI 1750443834
  Medicare reassignment NPD
• Radia Imaging Center Holdings LLC

  dba Seattle Radiology

  • Diagnostic Radiology Physician
  • Seattle, WA
  • NPI 1639653017
  Medicare reassignment NPD
• South Sound Radiologists Inc P S

  dba South Sound Radiology

  • Diagnostic Radiology Physician
  • Olympia, WA
  • NPI 1902990500
  Medicare reassignment NPD
• Swedish Health Services

  • Family Medicine Physician
  • Seattle, WA
  • NPI 1831139724
  Medicare reassignment NPD

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

• King County Public Hospital District No. 2

  dba EvergreenHealth Medical Center

  • General Acute Care Hospital
  • Kirkland, WA
  • NPI 1033174933
  Care Compare affiliation
• Overlake Medical Center & Clinics

  • General Acute Care Hospital
  • Bellevue, WA
  • NPI 1598971855
  Care Compare affiliation
• Overlake Medical Center & Clinics

  • General Acute Care Hospital
  • Bellevue, WA
  • NPI 1861432726
  Care Compare affiliation
• Providence Health & Services-Wa

  dba Providence Regional Medical Center Everett

  • Hospitalist Physician
  • Everett, WA
  • NPI 1649615220
  Care Compare affiliation
• Providence Health & Services-Wa

  • General Acute Care Hospital
  • Everett, WA
  • NPI 1700037801
  Care Compare affiliation
• Swedish Health Services

  • General Acute Care Hospital
  • Seattle, WA
  • NPI 1306992151
  Care Compare affiliation
• Swedish Health Services

  dba Swedish/Issaquah

  • General Acute Care Hospital
  • Issaquah, WA
  • NPI 1851686059
  Care Compare affiliation

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

{
    "created_epoch": "1118188800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772668800000",
    "number": "1174527121",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "19020 33RD AVE W STE 210",
            "city": "LYNNWOOD",
            "state": "WA",
            "postal_code": "980364748",
            "telephone_number": "425-563-1500",
            "fax_number": "425-563-1374"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "19020 33RD AVE W STE 210",
            "city": "LYNNWOOD",
            "state": "WA",
            "postal_code": "98036",
            "telephone_number": "425-563-1500",
            "fax_number": "425-563-1501"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "203 S Western Ave",
            "address_purpose": "LOCATION",
            "city": "Tonasket",
            "state": "WA",
            "postal_code": "988558803",
            "country_code": "US",
            "telephone_number": "509-486-2151",
            "fax_number": "509-223-1640",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CH'EN",
        "first_name": "IAN",
        "middle_name": "YEN",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-06-08",
        "last_updated": "2026-03-05",
        "certification_date": "2026-03-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "ID",
            "license": "M-12434",
            "primary": false
        },
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "WA",
            "license": "MD00033869",
            "primary": true
        },
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "CA",
            "license": "A00052836",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "LNI PROVIDER ID",
            "identifier": "220415",
            "state": "WA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "8198590",
            "state": "WA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "LNI PROVIDER ID",
            "identifier": "220412",
            "state": "WA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Ibette Caudillo
• Chelsea E Cauthen
• Alexys Cauvel, M.ED.
• Cecily Woodard PLLC
• Cedar Family Care LLC
• Tamuna Chabra, MD, PHD
• Kwang Ho Chae, ND
• Daniel Chambers, RDN
• Alan D S Chan, MD
• Ritika Chandra, D.M.D

• Diagnostic Radiology Physician in Lynnwood, WA
• Providers in Lynnwood, WA by specialty
• Diagnostic Radiology Physician in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 5, 2026; 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.