Kurt R. Duffens, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

MD00046663 Issued in WA

Practice address

3927 Rucker Ave
Everett, WA 98201-4833

Phone

(425) 339-5422

Fax

(425) 339-5444

NPI assigned

Oct 5, 2006

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 2

Medicare fee-for-service enrollment

Enrolled in OR, 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

University of Kansas School of Med (KC/Wich/Sal), 1980

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Oregon Healthcare Resources LLCGroup PAC ID 4486835477, 160 clinicians

Optum Care Washington PLLCGroup PAC ID 6406752153, 684 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://api.platform.athenahealth.com/3889/brand/1/csg/1/fhir/r4
• Direct secure messaging: kduffens109325@westdirect.optum.com
• Direct secure messaging: kduffens101611@oc.providencedirect.org
• Direct secure messaging: kduffens82005@direct.tecmc.com

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.

• Optum Care Washington PLLC

  • Multi-Specialty Clinic/Center
  • Everett, WA
  • NPI 1831186766

  Internal Medicine

  Medicare reassignment Care Compare group NPD
• Oregon Healthcare Resources, LLC

  • Multi-Specialty Clinic/Center
  • Eugene, OR
  • NPI 1982907572
  Medicare reassignment Care Compare group NPD
• The Polyclinic PLLC

  • Audiologist
  • Seattle, WA
  • NPI 1174594634

  Internal Medicine

  Medicare reassignment NPD
• Providence Health & Services - Oregon

  • General Acute Care Hospital
  • Portland, OR
  • NPI 1114015971

  Emergency Medicine

  Medicare reassignment NPD
• Optum Care Washington PLLC

  • Durable Medical Equipment & Medical Supplies
  • Marysville, WA
  • NPI 1194428425

  Internal Medicine

  NPD
• The Polyclinic

  • Ambulatory Surgical Clinic/Center
  • Seattle, WA
  • NPI 1073944039
  NPD
• The Polyclinic PLLC

  • Durable Medical Equipment & Medical Supplies
  • Tacoma, WA
  • NPI 1831411487

  Internal Medicine

  NPD
• Providence Health & Services - Oregon

  • Clinical Pathology Physician
  • Portland, OR
  • NPI 1831641745

  Emergency Medicine

  NPD
• Providence Health & Services Oregon

  • General Practice Physician
  • Lake Oswego, OR
  • NPI 1023488343
  NPD
• Optum Care Washington PLLC

  • Ambulatory Surgical Clinic/Center
  • Everett, WA
  • NPI 1154318103
  NPD (past)

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

{
    "created_epoch": "1160006400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1784764800000",
    "number": "1013003045",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "7600 EVERGREEN WAY",
            "city": "EVERETT",
            "state": "WA",
            "postal_code": "982036421",
            "telephone_number": "206-860-5414"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3927 RUCKER AVE",
            "city": "EVERETT",
            "state": "WA",
            "postal_code": "982014833",
            "telephone_number": "425-339-5422",
            "fax_number": "425-339-5444"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2830 Crescent Ave",
            "address_purpose": "LOCATION",
            "city": "Eugene",
            "state": "OR",
            "postal_code": "974087397",
            "country_code": "US",
            "telephone_number": "541-686-9000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "9709 3rd Ave NE",
            "address_purpose": "LOCATION",
            "city": "Seattle",
            "state": "WA",
            "postal_code": "981152062",
            "country_code": "US",
            "telephone_number": "206-860-2222",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "9205 SW Barnes Rd",
            "address_purpose": "LOCATION",
            "city": "Portland",
            "state": "OR",
            "postal_code": "972256603",
            "country_code": "US",
            "telephone_number": "503-297-6334",
            "fax_number": "503-297-2360",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DUFFENS",
        "first_name": "KURT",
        "middle_name": "R.",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-10-05",
        "last_updated": "2026-07-23",
        "certification_date": "2026-07-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "WA",
            "license": "MD00046663",
            "primary": true
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "OR",
            "license": "MD12783",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "UNITED HEALTHCARE",
            "identifier": "010051164",
            "state": "OR"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "073387",
            "state": "OR"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Catherine Dubois
• Eva Marie Ducham, M.S.W.
• Niki Govindbhai Dudhatra
• Jeanine M Duell, CM60421760
• Kay M Duff
• Wendy Nadia Duffy, RPH
• Lisa Ann Duggan, MD
• Rachel Dugowson, PT
• Mark Duhall
• Lia Dumas

• Internal Medicine Physician in Everett, WA
• Providers in Everett, WA by specialty
• Internal Medicine Physician in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 23, 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.