Christopher J Larson, PA

Primary specialty

Medical Physician AssistantTaxonomy code 363AM0700X

License

1434 Issued in WI

Practice address

1836 South Ave
La Crosse, WI 54601-5429

Phone

(608) 782-7300

Fax

(608) 775-4467

NPI assigned

Jun 24, 2005

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

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in WI

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

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: clarson2281@direct.gundersenhealth.org

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.

• Gundersen Clinic LTD

  • Clinic/Center
  • La Crosse, WI
  • NPI 1851343115
  Medicare reassignment
• Gundersen Clinic, LTD

  • Clinic/Center
  • Galesville, WI
  • NPI 1083964969
  NPD
• Gundersen Lutheran Express Care, Inc

  • Clinic/Center
  • La Crosse, WI
  • NPI 1043446974
  NPD

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

{
    "created_epoch": "1119571200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1871599779",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1836 SOUTH AVE",
            "city": "LA CROSSE",
            "state": "WI",
            "postal_code": "546015429",
            "telephone_number": "608-782-7300",
            "fax_number": "608-775-4467"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1836 SOUTH AVE",
            "city": "LA CROSSE",
            "state": "WI",
            "postal_code": "546015429",
            "telephone_number": "608-782-7300",
            "fax_number": "608-775-4467"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LARSON",
        "first_name": "CHRISTOPHER",
        "middle_name": "J",
        "credential": "PA",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-06-24",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363AM0700X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Medical",
            "state": "WI",
            "license": "1434",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "41955400",
            "state": "WI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Torben H Larsen, MD
• Anne M. Larson Schreier, BSW
• Abby Irene Larson, RN
• Andrew Joseph Larson, CRNA
• Anthony Steven Larson
• Filomena C Larson, OD
• Jennifer A Larson, RD
• John D Larson, OD
• Johnathan Robert Larue
• Kaylee Anne Laschenski, PT

• Medical Physician Assistant in La Crosse, WI
• Providers in La Crosse, WI by specialty
• Medical Physician Assistant in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.