Nancy Thordarson, MD

Primary specialty

Pediatrics PhysicianTaxonomy code 208000000X

License

MD00025700 Issued in WA

Practice address

4420 76TH St NE
Marysville, WA 98270-3726

Phone

(360) 651-7492

NPI assigned

Mar 9, 2006

Last updated

May 14, 2026By the provider in NPPES

Sex

Female

Sole proprietor

Yes

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 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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: nthordarson1306@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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Optum Care Washington PLLC

  • Ambulatory Surgical Clinic/Center
  • Everett, WA
  • NPI 1154318103
  Medicare reassignment NPD
• Optum Care Washington PLLC

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

  Pediatrics

  Medicare reassignment NPD
• Providence Health & Services- Washington

  dba PMG NW Wa

  • General Practice Physician
  • Everett, WA
  • NPI 1124270715
  Medicare reassignment NPD
• The Polyclinic PLLC

  dba Optum - Broadway

  • Audiologist
  • Seattle, WA
  • NPI 1174594634

  Pediatrics

  Medicare reassignment NPD
• Optum Care Washington PLLC

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

  Pediatrics

  NPD
• Providence Health & Services - Wa

  dba Providence Physician Group - Everett Neuro

  • Neurological Surgery Physician
  • Everett, WA
  • NPI 1760633879
  NPD
• The Polyclinic PLLC

  dba Optum Tacoma

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

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

{
    "created_epoch": "1141862400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1778716800000",
    "number": "1962470674",
    "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": "4420 76TH ST NE",
            "city": "MARYSVILLE",
            "state": "WA",
            "postal_code": "982703726",
            "telephone_number": "360-651-7492"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "THORDARSON",
        "first_name": "NANCY",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2006-03-09",
        "last_updated": "2026-05-14",
        "certification_date": "2026-05-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "WA",
            "license": "MD00025700",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Natalie Thomas
• Amy Rachelle Thompson
• Deena Maye Thompson, L.M.P
• Joseph Thompson
• Rebecca Thomson, OTR/L
• Thrifty Payless Inc (Rite Aid Pharmacy 06503)
• Thrifty Payless Inc (Rite Aid Pharmacy 05243)
• Yirgalem Tiruneh, M.D.
• Dorothy Colleen Todd, ARNP
• Christine Temple Salazar Toledo, MD

• Pediatrics Physician in Marysville, WA
• Providers in Marysville, WA by specialty
• Pediatrics Physician in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 14, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.