Sonja Halvorson, PA-C

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

189587 Issued in OR

Practice address

1255 Hilyard St
Eugene, OR 97401-3718

Phone

(541) 344-8757

NPI assigned

Sep 15, 2016

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in OR

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

State licenses

Practice roles

Locations

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.

• Peacehealth

  • Critical Access Hospital
  • Cottage Grove, OR
  • NPI 1902892391
  Medicare reassignment NPD
• Eugene Emergency Physicians PC

  • Emergency Medicine Physician
  • Eugene, OR
  • NPI 1831133677
  Medicare reassignment
• Peacehealth Medical Group Cottage Grove

  • Multi-Specialty Clinic/Center
  • Creswell, OR
  • NPI 1780631267
  NPD

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

{
    "created_epoch": "1473897600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757462400000",
    "number": "1154879351",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1515 VILLAGE DR",
            "city": "COTTAGE GROVE",
            "state": "OR",
            "postal_code": "974249700",
            "telephone_number": "541-767-5222"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1255 HILYARD ST",
            "city": "EUGENE",
            "state": "OR",
            "postal_code": "974013718",
            "telephone_number": "541-344-8757"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1515 Village Dr",
            "address_purpose": "LOCATION",
            "city": "Cottage Grove",
            "state": "OR",
            "postal_code": "974249700",
            "country_code": "US",
            "telephone_number": "417-675-5222",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "HALVORSON",
        "first_name": "SONJA",
        "name_prefix": "Miss",
        "credential": "PA-C",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2016-09-15",
        "last_updated": "2025-09-10",
        "certification_date": "2025-09-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "OR",
            "license": "189587",
            "primary": true
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "OR",
            "license": "PA189587",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Sarah Elizabeth Halstead
• Elizabeth A Halverson, LPC
• Lisa Halvorsen
• Gary Halvorson, M.D.
• Jan Elizabeth Halvorson, D.M.D.
• Claire Nelson Hambly, BA
• Jill S. Hambly, LPN
• Erika Maltese Gant Hambrick, PT, DPT
• Maddisen Hambright, CADC
• Catherine Hamby

• Physician Assistant in Eugene, OR
• Providers in Eugene, OR by specialty
• Physician Assistant in Oregon

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 10, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.